Features

48MHz Arm Cortex-M23 Core
Up to 64KB flash memory and 16KB SRAM
2KB data flash memory (100,000 program/erase (P/E) cycles)
Package options of 32-pin and 48-pin
Wide voltage range of 1.6V to 5.5V
16-bit general-purpose timers, 32-bit general-purpose timer, and 16-bit low-power asynchronous general-purpose timers
12-bit A/D converter and temperature sensor
SCI (UART, Simple SPI, Simple I²C), SPI, and I²C bus
Safety functions

Find Other Products in RA Arm Cortex-M MCUs

RA2E3 48 MHz Arm Cortex-M23 Ultra-Low Power, Entry-Line MCUs

Description

The RA2E3 group is an entry-line, single-chip microcontroller in the RA family based on the 48MHz Arm^® Cortex^®-M23 core with up to 64KB code flash and 16KB SRAM memory. RA2E3 MCUs provide an optimized feature set for cost-sensitive applications by supporting pin-to-pin and peripheral compatibility with RA2E1 MCUs. Ultra-low power consumption contributes to energy-efficient system design, required for IoT applications and battery-operated systems to achieve longer battery life.

Parameters

Attributes	Value
Main CPU	Arm Cortex-M23
Program Memory (KB)	32, 64
RAM (KB)	16
Carrier Type	Bulk (Tray), Full Carton (Tray), Full Tray (Tray), Tape & Reel
Supply Voltage (V)	-
I/O Ports	26, 40
DRAM I/F	No
Temp. Range (°C)	Ta = -40 to +85, 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)	3, 4
SPI (ch)	1
I2C (#)	1
CAN (ch)	0
CAN-FD (ch)	0
Wireless	No
SDHI (ch)	0
High Resolution Output Timer	No
PWM Output (pin#)	9, 14
32-Bit Timer (ch)	1
16-Bit Timer (ch) (#)	6
Standby operable timer	Yes
Asynchronous General Purpose Timer / Interval Timer (ch)	2
16-Bit A/D Converter (ch)	0
14-Bit A/D Converter (ch)	0
12-Bit A/D Converter (ch)	10, 13
24-Bit Sigma-Delta A/D Converter (ch)	0
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	No
Security & Encryption	Unique ID

Package Options

Pkg. Type	Pkg. Dimensions (mm)	Lead Count (#)	Pitch (mm)
HWQFN	5 x 5 x 0.8	32	0.5
HWQFN	7 x 7 x 0.8	48	0.5
LFQFP	7 x 7 x 1.7	32	0.8
LFQFP	7 x 7 x 1.7	48	0.5
LQFP	7 x 7 x 1.7	32	0.8
LQFP	7 x 7 x 1.7	48	0.5

Application Block Diagrams

Electric Toothbrush with UV Sanitation

An electric toothbrush with UV sanitization and NFC brush authentication.

Additional Applications

General Purpose
IoT Devices
Industrial Automation, Industrial Sensors
Consumer Applications
Home Appliances
Building Automation
Medical & Healthcare
Wearable Devices

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This video guides first-time users of the RA family using the Fast-Prototyping Board through the steps of installing a development environment, generating a project, and checking the operation to develop software.

The guide features the FPB-RA0E1 (Debugger: J-Link ARM) as a practical example.

Related Resources

FPB-RA0E1 - RA0E1 Fast Prototyping Board