RX21A

Description

The RX21A group is the product that 24-bit Delta-sigma ADC is built in for measuring instruments such as a smart meter. PGA (Programmable Gain Amp) is built in Delta-sigma ADC, which is possible to amplify analog signal at most 64 times. The RX21A group has peripheral functions with special features, such as RTC which enables Time capture on event-signal input through external pins and DEU (Data Encryption Unit) which enables to use Encryption/decryption functions of the AES standard.

Pin-Memory Diagram of RX21A standard products

Pin-Memory Diagram of RX21A High-temperature products

RX21A Block Diagram

Applications

Consumer (battery drive)
Healthcare
Industrial
Home appliances

Part Number	Status	Samples	Longevity	Stock	RoHS	Package	Budgetary Price (USD)	Carrier Type	Family Name	Series Name	Group Name	CPU Architecture	Main CPU	Sub CPU	Floating Point Unit	Bit Length	Program Memory (KB)	Data Flash (KB)	RAM (KB)	ECC SRAM	Lead Count (#)	Pitch (mm)	Pkg. Dimensions (mm)	Number of Supply Voltage(s) (#)	Supply Voltage (V)	I/O Ports	DMAC or DTC	DMA (ch)	Temperature Sensor (ch) (#)	Power-On Reset	Watchdog Timer (ch)	External Memory Bus (bit)	DRAM I/F	3D GPU	Accelerator	MOQ	Temp. Range (°C)	External Interrupt Pins (#)	LVD or PVD	Operating Freq (Max) (MHz)	Sub-clock (32.768 kHz)	On-chip Oscillator	Ethernet speed	USB FS (host ch/device ch)	USB HS (host ch/device ch)	USB SS (host ch/device ch)	PCI Express (generation and ch)	SCI or UART (ch)	SPI (ch)	I2C (#)	Wireless	IrDA	High Resolution Output Timer	PWM Output (pin#)	16-Bit Timer (ch) (#)	8-Bit Timer (ch)	Standby operable timer	RTC	10-Bit A/D Converter (ch)	24-Bit Sigma-Delta A/D Converter (ch)	10-Bit D/A Converter (ch) (#)	Analog Comparator (ch)	PGA (ch)	Graphics LCD Controller	Camera I/F (Parallel)	Image Codec	2D Drawing Engine	Segment LCD Controller	Security & Encryption	Debug Interface	Moisture Sensitivity Level (MSL)	Country of Assembly	Country of Wafer Fabrication
R5F521A6BDFM#10	NRND	N/A	2027 Dec	Out of Stock	Contact	LFQFP	1ku \| $5.18	Full Carton (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	256KB	8KB	32KB	No	64#	0.5mm	10 x 10 x 1.7	1#	1.8 - 3.6	38	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1280	Ta = -40 to +85	7#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	6#	No	Yes	No	15	10#	4	No	Yes	4	3	0	3	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A6BDFM#30	NRND	N/A		Out of Stock	Contact	LFQFP	1ku \| $5.18	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	256KB	8KB	32KB	No	64#	0.5mm	10 x 10 x 1.7	1#	1.8 - 3.6	38	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	7#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	6#	No	Yes	No	15	10#	4	No	Yes	4	3	0	3	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A6BDFM#V0	NRND	N/A		In Stock	Contact	LFQFP	1ku \| $5.18	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	256KB	8KB	32KB	No	64#	0.5mm	10 x 10 x 1.7	1#	1.8 - 3.6	38	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	7#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	6#	No	Yes	No	15	10#	4	No	Yes	4	3	0	3	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A6BDFN#10	NRND	N/A	2027 Dec	Out of Stock	Contact	LFQFP	1ku \| $5.39	Full Carton (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	256KB	8KB	32KB	No	80#	0.5mm	12 x 12 x 1.7	1#	1.8 - 3.6	51	DMAC&DTC	4	1#	Yes	2	No	No	No	No	952	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	4	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A6BDFN#30	NRND	N/A		In Stock	Contact	LFQFP	1ku \| $5.39	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	256KB	8KB	32KB	No	80#	0.5mm	12 x 12 x 1.7	1#	1.8 - 3.6	51	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	4	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A6BDFN#V0	NRND	N/A		Out of Stock	Contact	LFQFP	1ku \| $5.39	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	256KB	8KB	32KB	No	80#	0.5mm	12 x 12 x 1.7	1#	1.8 - 3.6	51	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	4	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A6BDFP#10	NRND	N/A	2027 Dec	Out of Stock	Contact	LFQFP	1ku \| $5.46	Full Carton (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	256KB	8KB	32KB	No	100#	0.5mm	14 x 14 x 1.7	1#	1.8 - 3.6	66	DMAC&DTC	4	1#	Yes	2	No	No	No	No	720	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	7	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A6BDFP#30	NRND	N/A		In Stock	Contact	LFQFP	1ku \| $5.46	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	256KB	8KB	32KB	No	100#	0.5mm	14 x 14 x 1.7	1#	1.8 - 3.6	66	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	7	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A6BDFP#V0	NRND	N/A		In Stock	Contact	LFQFP	1ku \| $5.46	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	256KB	8KB	32KB	No	100#	0.5mm	14 x 14 x 1.7	1#	1.8 - 3.6	66	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	7	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A6BDLJ#U0	Obsolete	N/A		Out of Stock	RoHS:EN RoHS:JA	TFLGA		Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	256KB	8KB	32KB	No	100#	0.65mm	7 x 7 x 1.05	1#	1.8 - 3.6	66	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	7	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3
R5F521A6BGFM#10	Obsolete	N/A		Out of Stock	RoHS:EN RoHS:JA	LFQFP		Full Carton (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	256KB	8KB	32KB	No	64#	0.5mm	10 x 10 x 1.7	1#	1.8 - 3.6	38	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1280	Ta = -40 to +105	7#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	6#	No	Yes	No	15	10#	4	No	Yes	4	3	0	3	7	No	No	No	No	No	Unique ID	Single-wire Serial	3
R5F521A6BGFM#30	Last Time Buy	N/A		Out of Stock	Contact	LFQFP	1ku \| $5.55	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	256KB	8KB	32KB	No	64#	0.5mm	10 x 10 x 1.7	1#	1.8 - 3.6	38	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +105	7#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	6#	No	Yes	No	15	10#	4	No	Yes	4	3	0	3	7	No	No	No	No	No	Unique ID	Single-wire Serial	3	CHINA	JAPAN
R5F521A6BGFN#10	Obsolete	N/A		Out of Stock	RoHS:EN RoHS:JA	LFQFP		Full Carton (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	256KB	8KB	32KB	No	80#	0.5mm	12 x 12 x 1.7	1#	1.8 - 3.6	51	DMAC&DTC	4	1#	Yes	2	No	No	No	No	952	Ta = -40 to +105	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	4	2#	4	7	No	No	No	No	No	Unique ID	Single-wire Serial	3
R5F521A6BGFN#30	Obsolete	N/A		Out of Stock	RoHS:EN RoHS:JA	LFQFP		Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	256KB	8KB	32KB	No	80#	0.5mm	12 x 12 x 1.7	1#	1.8 - 3.6	51	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +105	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	4	2#	4	7	No	No	No	No	No	Unique ID	Single-wire Serial	3
R5F521A6BGFP#10	Obsolete	N/A		Out of Stock	RoHS:EN RoHS:JA	LFQFP		Full Carton (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	256KB	8KB	32KB	No	100#	0.5mm	14 x 14 x 1.7	1#	1.8 - 3.6	66	DMAC&DTC	4	1#	Yes	2	No	No	No	No	720	Ta = -40 to +105	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	7	2#	4	7	No	No	No	No	No	Unique ID	Single-wire Serial	3
R5F521A6BGFP#30	Obsolete	N/A		Out of Stock	RoHS:EN RoHS:JA	LFQFP		Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	256KB	8KB	32KB	No	100#	0.5mm	14 x 14 x 1.7	1#	1.8 - 3.6	66	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +105	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	7	2#	4	7	No	No	No	No	No	Unique ID	Single-wire Serial	3
R5F521A7BDFM#10	NRND	N/A	2027 Dec	Out of Stock	Contact	LFQFP	1ku \| $5.31	Full Carton (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	384KB	8KB	64KB	No	64#	0.5mm	10 x 10 x 1.7	1#	1.8 - 3.6	38	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1280	Ta = -40 to +85	7#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	6#	No	Yes	No	15	10#	4	No	Yes	4	3	0	3	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A7BDFM#30	NRND	N/A		Out of Stock	Contact	LFQFP	1ku \| $5.31	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	384KB	8KB	64KB	No	64#	0.5mm	10 x 10 x 1.7	1#	1.8 - 3.6	38	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	7#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	6#	No	Yes	No	15	10#	4	No	Yes	4	3	0	3	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A7BDFM#V0	NRND	N/A		Out of Stock	Contact	LFQFP	1ku \| $5.31	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	384KB	8KB	64KB	No	64#	0.5mm	10 x 10 x 1.7	1#	1.8 - 3.6	38	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	7#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	6#	No	Yes	No	15	10#	4	No	Yes	4	3	0	3	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A7BDFN#10	Last Time Buy	N/A		Out of Stock	Contact	LFQFP	1ku \| $5.87	Full Carton (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	384KB	8KB	64KB	No	80#	0.5mm	12 x 12 x 1.7	1#	1.8 - 3.6	51	DMAC&DTC	4	1#	Yes	2	No	No	No	No	952	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	4	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A7BDFN#30	Last Time Buy	N/A		Out of Stock	Contact	LFQFP	1ku \| $5.87	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	384KB	8KB	64KB	No	80#	0.5mm	12 x 12 x 1.7	1#	1.8 - 3.6	51	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	4	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A7BDFN#V0	Obsolete	N/A		Out of Stock	RoHS:EN RoHS:JA	LFQFP		Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	384KB	8KB	64KB	No	80#	0.5mm	12 x 12 x 1.7	1#	1.8 - 3.6	51	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	4	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3
R5F521A7BDFP#10	NRND	N/A	2027 Dec	Out of Stock	Contact	LFQFP	1ku \| $5.95	Full Carton (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	384KB	8KB	64KB	No	100#	0.5mm	14 x 14 x 1.7	1#	1.8 - 3.6	66	DMAC&DTC	4	1#	Yes	2	No	No	No	No	720	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	7	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A7BDFP#30	NRND	N/A		Out of Stock	Contact	LFQFP	1ku \| $5.95	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	384KB	8KB	64KB	No	100#	0.5mm	14 x 14 x 1.7	1#	1.8 - 3.6	66	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	7	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A7BDFP#V0	NRND	N/A		Out of Stock	Contact	LFQFP	1ku \| $5.95	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	384KB	8KB	64KB	No	100#	0.5mm	14 x 14 x 1.7	1#	1.8 - 3.6	66	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	7	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A7BDLJ#U0	Obsolete	N/A		Out of Stock	RoHS:EN RoHS:JA	TFLGA		Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	384KB	8KB	64KB	No	100#	0.65mm	7 x 7 x 1.05	1#	1.8 - 3.6	66	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	7	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3
R5F521A7BGFM#10	Obsolete	N/A		Out of Stock	RoHS:EN RoHS:JA	LFQFP		Full Carton (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	384KB	8KB	64KB	No	64#	0.5mm	10 x 10 x 1.7	1#	1.8 - 3.6	38	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1280	Ta = -40 to +105	7#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	6#	No	Yes	No	15	10#	4	No	Yes	4	3	0	3	7	No	No	No	No	No	Unique ID	Single-wire Serial	3
R5F521A7BGFM#30	Obsolete	N/A		Out of Stock	RoHS:EN RoHS:JA	LFQFP		Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	384KB	8KB	64KB	No	64#	0.5mm	10 x 10 x 1.7	1#	1.8 - 3.6	38	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +105	7#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	6#	No	Yes	No	15	10#	4	No	Yes	4	3	0	3	7	No	No	No	No	No	Unique ID	Single-wire Serial	3
R5F521A7BGFN#10	NRND	N/A		In Stock	Contact	LFQFP	1ku \| $6.29	Full Carton (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	384KB	8KB	64KB	No	80#	0.5mm	12 x 12 x 1.7	1#	1.8 - 3.6	51	DMAC&DTC	4	1#	Yes	2	No	No	No	No	952	Ta = -40 to +105	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	4	2#	4	7	No	No	No	No	No	Unique ID	Single-wire Serial	3	CHINA	JAPAN
R5F521A7BGFN#30	NRND	N/A		In Stock	Contact	LFQFP	1ku \| $6.29	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	384KB	8KB	64KB	No	80#	0.5mm	12 x 12 x 1.7	1#	1.8 - 3.6	51	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +105	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	4	2#	4	7	No	No	No	No	No	Unique ID	Single-wire Serial	3	CHINA	JAPAN
R5F521A7BGFP#10	Obsolete	N/A		Out of Stock	RoHS:EN RoHS:JA	LFQFP		Full Carton (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	384KB	8KB	64KB	No	100#	0.5mm	14 x 14 x 1.7	1#	1.8 - 3.6	66	DMAC&DTC	4	1#	Yes	2	No	No	No	No	720	Ta = -40 to +105	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	7	2#	4	7	No	No	No	No	No	Unique ID	Single-wire Serial	3
R5F521A7BGFP#30	Obsolete	N/A		Out of Stock	RoHS:EN RoHS:JA	LFQFP		Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	384KB	8KB	64KB	No	100#	0.5mm	14 x 14 x 1.7	1#	1.8 - 3.6	66	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +105	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	7	2#	4	7	No	No	No	No	No	Unique ID	Single-wire Serial	3
R5F521A8BDFM#10	Last Time Buy	N/A		Out of Stock	Contact	LFQFP	1ku \| $5.52	Full Carton (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	512KB	8KB	64KB	No	64#	0.5mm	10 x 10 x 1.7	1#	1.8 - 3.6	38	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1280	Ta = -40 to +85	7#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	6#	No	Yes	No	15	10#	4	No	Yes	4	3	0	3	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A8BDFM#30	NRND	N/A		In Stock	Contact	LFQFP	1ku \| $5.52	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	512KB	8KB	64KB	No	64#	0.5mm	10 x 10 x 1.7	1#	1.8 - 3.6	38	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	7#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	6#	No	Yes	No	15	10#	4	No	Yes	4	3	0	3	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A8BDFM#V0	NRND	N/A		In Stock	Contact	LFQFP	1ku \| $5.52	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	512KB	8KB	64KB	No	64#	0.5mm	10 x 10 x 1.7	1#	1.8 - 3.6	38	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	7#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	6#	No	Yes	No	15	10#	4	No	Yes	4	3	0	3	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A8BDFN#10	NRND	N/A	2027 Dec	Out of Stock	Contact	LFQFP	1ku \| $6.08	Full Carton (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	512KB	8KB	64KB	No	80#	0.5mm	12 x 12 x 1.7	1#	1.8 - 3.6	51	DMAC&DTC	4	1#	Yes	2	No	No	No	No	952	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	4	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A8BDFN#30	NRND	N/A		Out of Stock	Contact	LFQFP	1ku \| $6.08	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	512KB	8KB	64KB	No	80#	0.5mm	12 x 12 x 1.7	1#	1.8 - 3.6	51	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	4	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A8BDFN#V0	Obsolete	N/A		Out of Stock	RoHS:EN RoHS:JA	LFQFP		Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	512KB	8KB	64KB	No	80#	0.5mm	12 x 12 x 1.7	1#	1.8 - 3.6	51	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	4	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3
R5F521A8BDFP#10	NRND	N/A	2027 Dec	Out of Stock	Contact	LFQFP	1ku \| $6.16	Full Carton (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	512KB	8KB	64KB	No	100#	0.5mm	14 x 14 x 1.7	1#	1.8 - 3.6	66	DMAC&DTC	4	1#	Yes	2	No	No	No	No	720	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	7	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A8BDFP#30	NRND	N/A		In Stock	Contact	LFQFP	1ku \| $6.16	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	512KB	8KB	64KB	No	100#	0.5mm	14 x 14 x 1.7	1#	1.8 - 3.6	66	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	7	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A8BDFP#V0	NRND	N/A		In Stock	Contact	LFQFP	1ku \| $6.16	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	512KB	8KB	64KB	No	100#	0.5mm	14 x 14 x 1.7	1#	1.8 - 3.6	66	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	7	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3	CHINA	JAPAN
R5F521A8BDLJ#U0	NRND	N/A		Out of Stock	Contact	TFLGA	1ku \| $6.44	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	512KB	8KB	64KB	No	100#	0.65mm	7 x 7 x 1.05	1#	1.8 - 3.6	66	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +85	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	7	2#	4	7	No	No	No	No	No	No	Single-wire Serial	3	JAPAN	JAPAN
R5F521A8BGFM#10	Obsolete	N/A		Out of Stock	RoHS:EN RoHS:JA	LFQFP		Full Carton (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	512KB	8KB	64KB	No	64#	0.5mm	10 x 10 x 1.7	1#	1.8 - 3.6	38	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1280	Ta = -40 to +105	7#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	6#	No	Yes	No	15	10#	4	No	Yes	4	3	0	3	7	No	No	No	No	No	Unique ID	Single-wire Serial	3
R5F521A8BGFM#30	Obsolete	N/A		Out of Stock	RoHS:EN RoHS:JA	LFQFP		Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	512KB	8KB	64KB	No	64#	0.5mm	10 x 10 x 1.7	1#	1.8 - 3.6	38	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +105	7#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	6#	No	Yes	No	15	10#	4	No	Yes	4	3	0	3	7	No	No	No	No	No	Unique ID	Single-wire Serial	3
R5F521A8BGFN#10	Obsolete	N/A		Out of Stock	RoHS:EN RoHS:JA	LFQFP		Full Carton (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	512KB	8KB	64KB	No	80#	0.5mm	12 x 12 x 1.7	1#	1.8 - 3.6	51	DMAC&DTC	4	1#	Yes	2	No	No	No	No	952	Ta = -40 to +105	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	4	2#	4	7	No	No	No	No	No	Unique ID	Single-wire Serial	3
R5F521A8BGFN#30	Obsolete	N/A		Out of Stock	RoHS:EN RoHS:JA	LFQFP		Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	512KB	8KB	64KB	No	80#	0.5mm	12 x 12 x 1.7	1#	1.8 - 3.6	51	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +105	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	4	2#	4	7	No	No	No	No	No	Unique ID	Single-wire Serial	3
R5F521A8BGFP#10	NRND	N/A		Out of Stock	Contact	LFQFP	1ku \| $6.59	Full Carton (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	512KB	8KB	64KB	No	100#	0.5mm	14 x 14 x 1.7	1#	1.8 - 3.6	66	DMAC&DTC	4	1#	Yes	2	No	No	No	No	720	Ta = -40 to +105	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	7	2#	4	7	No	No	No	No	No	Unique ID	Single-wire Serial	3	CHINA	JAPAN
R5F521A8BGFP#30	NRND	N/A		Out of Stock	Contact	LFQFP	1ku \| $6.59	Bulk (Tray)	RX	RX200	RX21A	RX	RXv1	No	No	32	512KB	8KB	64KB	No	100#	0.5mm	14 x 14 x 1.7	1#	1.8 - 3.6	66	DMAC&DTC	4	1#	Yes	2	No	No	No	No	1	Ta = -40 to +105	8#	Yes	50MHz	Yes	Yes	No	( 0 / 0 )	( 0 / 0 )	( 0 / 0 )	No	5	7	7#	No	Yes	No	16	10#	4	No	Yes	7	7	2#	4	7	No	No	No	No	No	Unique ID	Single-wire Serial	3	CHINA	JAPAN

Filters

Application Note
RX Family JPEG Decoder Module Firmware Integration Technology Rev.2.09
PDF 386 KB R20AN0104EJ0209 Rev.2.09 日本語 Apr 20, 2026
This material explains usage of JPEG Decoder (JPEGD). JPEG Decoder is only for decoding, and there are the following two libraries. JPEG Decode Library: Inverse DCT, Inverse Quantization and Huffman decoding. JPEG File Expand Library: Expand JPEG data using JPEG Decode Library.
Related Files:
Sample Code
Application Note
RX Family Sound Playback/Compression System (Original ADPCM Codec) [M3S-S2-Tiny] Module Firmware Integration Technology Rev3.06
PDF 292 KB R20AN0037EJ0306 Rev.3.06 日本語 Apr 20, 2026
This application note explains how to implement the ADPCM Encoder/Decoder Library using Firmware Integration Technology(FIT). S2 Library can playback/record to use RX Family. The S2 library for the Renesas Microcomputer is written in optimized assembler.
Related Files:
Sample Code
Application Note
RX Family SD Mode SD Memory Card Driver Firmware Integration Technology Rev3.02
PDF 1.48 MB R01AN4233EJ0302 Rev.3.02 日本語 Apr 20, 2026
This application note describes the SD Mode SD Memory Card driver which uses Firmware Integration Technology (FIT). This driver controls SD Memory Cards in SD mode using the SD Host Interface (SDHI) module included in Renesas Electronics RX Family microcontrollers.
Related Files:
Sample Code
Guide
Differences Between RX Products
PDF 625 KB R01AN8069EJ0101 Rev.1.01 日本語 Apr 07, 2026
Describes the RX products migration map, which shows the relationship between previous-generation products and new-generation products, and the preparation status of difference documents, which summarize the functional differences between each RX product. Please use this application note to gather information when migrating from previous-generation products to new-generation products or when using different RX products.
Guide
RX Family Product Part Number Guide
PDF 728 KB EPMGP-AB-26-0082-1 Apr 07, 2026
Application Note
RX Family Clock Synchronous Control Module for Serial NOR Flash Memory Access Firmware Integration Technology Rev.3.61
PDF 1.23 MB R01AN2662EJ0361 Rev.3.61 日本語 Mar 30, 2026
This application note explains how to control and use serial flash memory with microcontrollers manufactured by Renesas Electronics.The control software accompanying this application note is upper-layer software that controls the serial flash memory as a slave device.
Related Files:
Sample Code
Application Note
RX Family Clock Synchronous Control Module for EEPROM Access Firmware Integration Technology Rev.3.23
PDF 565 KB R01AN2325EJ0323 Rev.3.23 日本語 Mar 30, 2026
This application note explains how to control and use R1EX25xxx and HN58X25xxx Series SPI serial EEPROM, manufactured by Renesas Electronics, with Renesas microcontrollers. The control software accompanying this application note is upper-layer software that controls the serial EEPROM as a slave device.
Related Files:
Sample Code
Application Note
RX Family Open Source FAT File System M3S-TFAT-Tiny Module Using Firmware Integration Technology Rev.4.16
PDF 741 KB R20AN0038EJ0416 Rev.4.16 日本語 Mar 30, 2026
This application note describes the RX Family Open Source FAT Filesystem M3S-TFAT-Tiny(Note) which uses Firmware Integration Technology (FIT). This module combines with RX Family M3S-TFAT-Tiny Memory Driver Interface module to interface each memory drivers.
Related Files:
Sample Code
Application Note
RX Family M3S-TFAT-Tiny Memory Driver Interface Module Using Firmware Integration Technology Rev.2.63
PDF 728 KB R20AN0335EJ0263 Rev.2.63 日本語 Mar 30, 2026
This Application Note describes the M3S-TFAT-Tiny Memory Driver Interface module which uses Firmware Integration Technology (FIT). This module uses as memory driver interface to combine RX Family Open source FAT filesystem M3S-TFAT-Tiny FIT (TFAT FIT) with each memory drivers.
Related Files:
Sample Code
Application Note
RX Family LONGQ Module Using Firmware Integration Technology Rev.2.03
PDF 691 KB R01AN1889EJ0203 Rev.2.03 日本語 Mar 30, 2026
This application note describes a LONGQ Module Using Firmware Integration Technology. This module provides functions for creating and maintaining uint32_t circular buffers
Related Files:
Sample Code
Application Note
RX Family BYTEQ Module Using Firmware Integration Technology Rev.2.21
PDF 616 KB R01AN1683EJ0221 Rev.2.21 日本語 Mar 30, 2026
This application note describes a BYTEQ Module Using Firmware Integration Technology. This module provides functions for creating and maintaining byte-based circular buffers.
Related Files:
Sample Code
Application Note
RX Family Flash Memory Data Management Module Using Firmware Integration Technology Rev.2.32
PDF 690 KB R20AN0507EJ0232 Rev.2.32 日本語 Mar 20, 2026
This application note describes methods of data management using the on-chip flash memory of RX MCUs from Renesas and how to use them. The flash memory data management module (DATFRX) is an upperlayer software module intended to be used for managing data in on-chip flash memory.
Related Files:
Sample Code
Application Note
RX Family System Timer Module Firmware Integration Technology Rev.1.03
PDF 346 KB R20AN0431EJ0103 Rev.1.03 日本語 Mar 20, 2026
This application note describes the System Timer module which uses Firmware Integration Technology (FIT). This module uses System Timer to counts the year/month/day/hour/minute/seconds, and has simple scheduler function.
Related Files:
Sample Code
Application Note
RX Family How to Prevent the On-Chip Flash Memory from Being Accessed by Third Parties or Being Accidentally Programmed by Developers
PDF 770 KB R01AN0896EJ0900 Rev.9.00 日本語 Mar 02, 2026
Describes methods of prohibiting access by third parties to the on-chip flash memory of Renesas MCUs for each connection configuration, and methods of protecting the on-chip flash memory during self-programming initiated by program developers and protection setters.
Guide
RX Family and M16C family Guide for Migration from the M16C to the RX : Timers (MTU2/MTU3/GPTW)
PDF 654 KB R01AN1729EJ0300 Rev.3.00 日本語 Dec 12, 2025
This document describes migration from the timers in the M16C Family (Timer A and Timer B) to the timers in the RX Family (MTU2a, MTU3a and GPTWa).When this document explains the migration from the M16C Family to the RX Family, the M16C/65C Group is used as an example of the M16C Family, and the RX231 Group, RX261 Group, and RX660 Group are used as examples of the RX Family.

Datasheets (1)

Datasheet
RX21A Group Datasheet Rev.1.10
RECOMMENDED
PDF 2 MB R01DS0129EJ0110 Rev.1.10 日本語 Aug 28, 2014

Manuals & Guides (14)

Guide
Differences Between RX Products
PDF 625 KB R01AN8069EJ0101 Rev.1.01 日本語 Apr 07, 2026
Describes the RX products migration map, which shows the relationship between previous-generation products and new-generation products, and the preparation status of difference documents, which summarize the functional differences between each RX product. Please use this application note to gather information when migrating from previous-generation products to new-generation products or when using different RX products.
Guide
RX Family Product Part Number Guide
PDF 728 KB EPMGP-AB-26-0082-1 Apr 07, 2026
Guide
RX Family and M16C family Guide for Migration from the M16C to the RX : Timers (MTU2/MTU3/GPTW)
PDF 654 KB R01AN1729EJ0300 Rev.3.00 日本語 Dec 12, 2025
This document describes migration from the timers in the M16C Family (Timer A and Timer B) to the timers in the RX Family (MTU2a, MTU3a and GPTWa).When this document explains the migration from the M16C Family to the RX Family, the M16C/65C Group is used as an example of the M16C Family, and the RX231 Group, RX261 Group, and RX660 Group are used as examples of the RX Family.
Guide
RX Family, H8S Family H8S to RX Migration Guide: DTC
PDF 1.07 MB R01AN4392EJ0200 Rev.2.00 日本語 Mar 25, 2025
Guide
RX Family, H8S Family H8S to RX Migration Guide: ADC
PDF 831 KB R01AN4391EJ0200 Rev.2.00 日本語 Mar 25, 2025

View More (14)

Application Notes & White Papers (138)

Application Note
RX Family JPEG Decoder Module Firmware Integration Technology Rev.2.09
PDF 386 KB R20AN0104EJ0209 Rev.2.09 日本語 Apr 20, 2026
This material explains usage of JPEG Decoder (JPEGD). JPEG Decoder is only for decoding, and there are the following two libraries. JPEG Decode Library: Inverse DCT, Inverse Quantization and Huffman decoding. JPEG File Expand Library: Expand JPEG data using JPEG Decode Library.
Related Files:
Sample Code
Application Note
RX Family Sound Playback/Compression System (Original ADPCM Codec) [M3S-S2-Tiny] Module Firmware Integration Technology Rev3.06
PDF 292 KB R20AN0037EJ0306 Rev.3.06 日本語 Apr 20, 2026
This application note explains how to implement the ADPCM Encoder/Decoder Library using Firmware Integration Technology(FIT). S2 Library can playback/record to use RX Family. The S2 library for the Renesas Microcomputer is written in optimized assembler.
Related Files:
Sample Code
Application Note
RX Family SD Mode SD Memory Card Driver Firmware Integration Technology Rev3.02
PDF 1.48 MB R01AN4233EJ0302 Rev.3.02 日本語 Apr 20, 2026
This application note describes the SD Mode SD Memory Card driver which uses Firmware Integration Technology (FIT). This driver controls SD Memory Cards in SD mode using the SD Host Interface (SDHI) module included in Renesas Electronics RX Family microcontrollers.
Related Files:
Sample Code
Application Note
RX Family Clock Synchronous Control Module for Serial NOR Flash Memory Access Firmware Integration Technology Rev.3.61
PDF 1.23 MB R01AN2662EJ0361 Rev.3.61 日本語 Mar 30, 2026
This application note explains how to control and use serial flash memory with microcontrollers manufactured by Renesas Electronics.The control software accompanying this application note is upper-layer software that controls the serial flash memory as a slave device.
Related Files:
Sample Code
Application Note
RX Family Clock Synchronous Control Module for EEPROM Access Firmware Integration Technology Rev.3.23
PDF 565 KB R01AN2325EJ0323 Rev.3.23 日本語 Mar 30, 2026
This application note explains how to control and use R1EX25xxx and HN58X25xxx Series SPI serial EEPROM, manufactured by Renesas Electronics, with Renesas microcontrollers. The control software accompanying this application note is upper-layer software that controls the serial EEPROM as a slave device.
Related Files:
Sample Code

View More (138)

Product Notices (PCN, EOL, etc) (4)

End Of Life Notice
End Of Life Notice [SAF-B-23-0002]
PDF 2.17 MB SAF-B-23-0002 日本語 Jun 12, 2023
Product Change Notice
Unification of a JEDEC tray and a embossed carrier tape for LQFP package (Additional Information & Correction)
PDF 4.86 MB PC-WRP-A001C/E 日本語 Jan 23, 2018
Product Change Notice
Unification of a JEDEC tray and a embossed carrier tape for LQFP package ( PC-WRP-A001B/E )
PDF 3.74 MB PC-WRP-A001B/E 日本語 Mar 08, 2017
Product Change Notice
Unification of a JEDEC tray and a embossed carrier tape for LQFP package ( PC-WRP-A001A/E )
PDF 1.46 MB PC-WRP-A001A/E 日本語 Jul 01, 2016

Errata & Technical Updates (36)

Technical Update
RX21A Group, RX220 Group Errata to User's Manual: Hardware Regarding the Realtime Clock (RTC)
PDF 197 KB TN-RX*-A0242B/E 日本語 Mar 02, 2021
Technical Update
RX Family Note on Rewriting the System Clock Control Register 3 (SCKCR3)
PDF 157 KB TN-RX-A0224B/E 日本語 Jul 30, 2020
Technical Update
Errata to User's Manual: Hardware Regarding the I2C-bus Interface (RIIC) (TN-RX*-A0225A/E)
PDF 630 KB TN-RX*-A0225A/E 日本語 Jul 14, 2020
Technical Update
Addition of a way to confirm the completion of the transmission of all data through the serial peripheral interface (RSPI) (TN-RXx-A0147B/E)
PDF 179 KB TN-RXx-A0147B/E 日本語 Jun 05, 2019
Technical Update
Corrections to Descriptions for the P/E Suspend Command of Flash Memory in RX210 Group, RX21A Group, and RX220 Group
PDF 195 KB TN-RXx-A188A/E 日本語 Apr 05, 2018

View More (36)

Quality & Reliability (1)

Product Reliability Report
R5F521AXXX Reliability Report
PDF 423 KB MCR-22-0297 Apr 26, 2022

Marketing Collateral (1)

Flyer
RX200 Series Microcontrollers Brochure
PDF 2.41 MB R01CP0009ED1100 Rev.11.00 简体中文 Nov 01, 2018

Support Communities

UART Boolloader for RX21A
Hello All I want to update my RX21A firmware through UART so anyone having any doc or any sample code. I am using WiFi module with RX21A through UART and through WI-FI I want to update RX21A firmware. Thanks
Sep 13, 2019
- RX MCU
- Forum
Timer Initiation MTU3 (MTU3.TGRA & MTU3.TGRB) in RX21A
Hi All I want two independent timers ( with different timing ), and for that, I initialized two timers -- inti function as below but I kept MTU3.TGRA & MTU3.TGRAB is different but still both the Timer interrupts I am getting on the same time (10mse a per MTU3.TGRA config ...
Oct 9, 2023
- RX MCU
- Forum
RX21A the temperature and humidity effects
Hello, I would like to ask a question about RX21A R5F521A6BDFP 24Bit ∆Σ A/D Conversion effects After the RX21A is tested with a temperature and humidity of 85°C, will the internal resistance of the ADC sampling change? Where can I see the corresponding parameters? Thank you for your ...
Jun 15, 2022
- RX MCU
- Forum

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Product Selector Microcontrollers & Microprocessors

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Microcontroller with 24-bit ΔΣ A/D Converter for Measuring Instruments, Including Smart Meters

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