Features

48MHz Arm Cortex-M23 core
512KB flash memory (dual bank) and 48KB SRAM
8KB data flash memory (100,000 program/erase (P/E) cycles)
64-pin, 80-pin, and 100-pin LFQFP package options
24-bit Sigma-Delta A/D converter, 12-bit A/D converter and temperature sensor
16-bit general-purpose timers, 32-bit and 16-bit low-power AGT timers, and independent power supply RTC
SCI (UART, Simple SPI, Simple I²C), SPI and I²C bus
Segment LCD controller (8com x 38seg)
Security functions including AES, Secure MPU, Flash Access Window, TRNG

Find Other Products in RA Arm Cortex-M MCUs

Description

The RA2A2 group is a low-power microcontroller that combines a 48MHz Arm^® Cortex^®-M23 core and a rich set of peripheral functions. The RA2A2 MCU provides an optimized feature set suitable for a wide range of applications by supporting segment LCD and high-precision analog sensing functionalities while reducing power consumption, system cost, and overall footprint. Furthermore, the RA2A2's dual bank flash and security features make firmware updates easy and increase system reliability.

Product Comparison

	RA2A2	RA2A1	RA2L1	RA4M2
CPU	Arm Cortex-M23	Arm Cortex-M23	Arm Cortex-M23	Arm Cortex-M33
Operating Freq (Max) (MHz)	48	48	48	100
Program Memory (KB)	512	256	128, 256	256, 384, 512
RAM (KB)	48	32	32	128
Data Flash (KB)	8	8	8	8
Lead Count (#)	64, 80, 100	32, 36, 40, 48, 64	48, 64, 80, 100	48, 64, 100
Supply Voltage	1.6 - 5.5	1.6 - 5.5	1.6 - 5.5	2.7 - 3.6

Parameters

Attributes	Value
Main CPU	Arm Cortex-M23
Program Memory (KB)	512
RAM (KB)	48
Carrier Type	Bulk (Tray), Full Carton (Tray), Full Tray (Tray), Tape & Reel
Supply Voltage (V)	-
I/O Ports	43, 59, 71, 77
DRAM I/F	No
Temp. Range (°C)	Ta = -40 to +105
Operating Freq (Max) (MHz)	48
Ethernet speed	No
EtherCat (ch) (#)	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 )
SCI or UART (ch)	4, 5
SPI (ch)	1
I2C (#)	1, 2
CAN (ch)	0
CAN-FD (ch)	0
Wireless	No
SDHI (ch)	0
High Resolution Output Timer	No
PWM Output (pin#)	9, 11, 12
32-Bit Timer (ch)	0
16-Bit Timer (ch) (#)	5, 6
Standby operable timer	Yes
Asynchronous General Purpose Timer / Interval Timer (ch)	10
16-Bit A/D Converter (ch)	0
14-Bit A/D Converter (ch)	0
12-Bit A/D Converter (ch)	2, 4
24-Bit Sigma-Delta A/D Converter (ch)	4, 7
12-Bit D/A Converter (ch)	0
8-Bit D/A Converter (ch)	0
Capacitive Touch Sensing Unit (ch)	0
Image Codec	No
Segment LCD Controller	Yes
Security & Encryption	Unique ID, TRNG, AES

Package Options

Pkg. Type	Pkg. Dimensions (mm)	Lead Count (#)	Pitch (mm)
LFQFP	10 x 10 x 1.7	64	0.5
LFQFP	12 x 12 x 1.7	80	0.5
LFQFP	14 x 14 x 1.7	100	0.5

Application Block Diagrams

	Level 2 EV Charger Modular EVSE system with advanced connectivity for efficient EV charging and management.
	Magnetic Flow Meter Magnetic flow meters ensure precise flow measurement using electromagnetic induction, ideal for various industries.
	Smart Thermostat IoT-enabled smart thermostat offers remote monitoring, and energy efficiency, and supports rapid prototyping tools.
	Level 2 EV Charger Wall Box Modular EV charger design with flexible communication, OTA updates, and simplified high-voltage power.
	3-Phase Smart Electric Meter 3-phase smart meter with remote data access and high-voltage operation for heavy loads.
	Smart 3-Ph E-Meter Smart 3-phase e-meter with bidirectional communication and tamper detection for modern grids.

Additional Applications

Energy meters
Industrial automation
Building automation
Home appliances
Medical and healthcare
Digital home appliances/consumer products

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An overview of the ultra-low power, feature-rich MCUs ideal for global energy management and a variety of industrial applications. Get all the details on the RA2A2 page.