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RX21A Block Diagram
Pin-Memory Diagram of RX21A standard products
Pin-Memory Diagram of RX21A High-temperature products
RX21A Block Diagram
Pin-Memory Diagram of RX21A standard products
Pin-Memory Diagram of RX21A High-temperature products

R5F521A6BDFP#30

Not Recommended for New Designs
Microcontroller with 24-bit ΔΣ A/D Converter for Measuring Instruments, Including Smart Meters
RX21A Group Datasheet Rev.1.10RX21A Group User's Manual: Hardware Rev.1.10RX Family RXv1 Instruction Set Architecture User's Manual: Software Rev.1.30Learn more about RX21A

Package Information

CAD Model:View CAD Model
Pkg. Type:LFQFP
Pkg. Code:pkg_9396
Lead Count (#):100
Pkg. Dimensions (mm):14 x 14 x 1.7
Pitch (mm):0.5

Environmental & Export Classifications

Moisture Sensitivity Level (MSL)3
ECCN (US)3A991.a.2
HTS (US)8542.31.0025
RoHS (R5F521A6BDFP#30)EnglishJapanese
Pb (Lead) FreeYes

Product Attributes

Carrier TypeTray
Family NameRX
Series NameRX200
Group NameRX21A
CPU ArchitectureRX
Main CPURXv1
Sub CPUNo
Floating Point UnitNo
Bit Length32
Program Memory (KB)256
Data Flash (KB)8
RAM (KB)32
ECC SRAMNo
Lead Count (#)100
Pitch (mm)0.5
Pkg. Dimensions (mm)14 x 14 x 1.7
Number of Supply Voltage(s) (#)1
Supply Voltage (V)1.8 - 3.6
I/O Ports66
DMAC or DTCDMAC&DTC
DMA (ch)4
Temperature Sensor (ch) (#)1
Power-On ResetYes
Watchdog Timer (ch)2
External Memory Bus (bit)No
DRAM I/FNo
3D GPUNo
AcceleratorNo
MOQ1
Temp. Range (°C)Ta = -40 to +85
External Interrupt Pins (#)8
LVD or PVDYes
Operating Freq (Max) (MHz)50
Sub-clock (32.768 kHz)Yes
On-chip OscillatorYes
Ethernet speedNo
Ethernet (ch)0
EtherCat (ch) (#)0
USB Ports (#)0
USB FS (host ch/device ch)( 0 / 0 )
USB HS (host ch/device ch)( 0 / 0 )
USB SS (host ch/device ch)( 0 / 0 )
PCI Express (generation and ch)No
SCI or UART (ch)5
SPI (ch)7
QSPI (ch)0
OSPI (ch)0
I2C (#)7
I3C (ch)0
CAN (ch)0
CAN-FD (ch)0
WirelessNo
IrDAYes
LIN (#)0
SDHI (ch)0
High Resolution Output TimerNo
PWM Output (pin#)16
32-Bit Timer (ch)0
16-Bit Timer (ch) (#)10
8-Bit Timer (ch)4
Standby operable timerNo
Asynchronous General Purpose Timer / Interval Timer (ch)0
RTCYes
16-Bit A/D Converter (ch)0
14-Bit A/D Converter (ch)0
12-Bit A/D Converter (ch)0
10-Bit A/D Converter (ch)7
24-Bit Sigma-Delta A/D Converter (ch)7
16-Bit D/A Converter (ch)0
12-Bit D/A Converter (ch)0
10-Bit D/A Converter (ch) (#)2
8-Bit D/A Converter (ch)0
Analog Comparator (ch)4
OPAMP (ch) (#)0
PGA (ch)7
Capacitive Touch Sensing Unit (ch)0
Graphics LCD ControllerNo
MIPI Interfaces (DSI) (ch)0
MIPI Interfaces (CSI) (ch)0
Camera I/F (Parallel)No
Image CodecNo
2D Drawing EngineNo
Segment LCD ControllerNo
SSI (ch)0
Security & EncryptionNo
Debug InterfaceSingle-wire Serial
Moisture Sensitivity Level (MSL)3
Country of AssemblyCHINA
Country of Wafer FabricationJAPAN
12-Bit Timer (ch)0
32-Bit High Res Timer (ch)0
ADC10-bit x 7-ch
Asynchronous General Purpose Timer (ch)0
Bit Size32
CPURXv1
DAC10-bit x 2-ch
DMAYes
DTC (ch)0
Delta-Sigma A/D ConverterYes
EthernetNo
Family NameRX
Group NameRX21A
High-Speed Analog Comparator (ch)0
Lead CompliantYes
Length (mm)14
Low-Power Analog Comparator (ch)0
Pb (Lead) FreeYes
Pkg. TypeLFQFP
Price (USD)$7.42367
SPI (#)7
Tape & ReelNo
Thickness (mm)1.7
Timer8-bit x 4-ch, 16-bit x 10-ch
UART (#)5
USBFS (ch)0
USBHS (ch)0
Width (mm)14

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.

Learn more about RX21A