RA2L1

Features

48MHz Arm Cortex-M23
128kB/256kB Flash Memory and 32kB SRAM with ECC
8kB Data Flash to store data as in EEPROM
Scalable from 48-pin to 100-pin packages
Internal voltage regulators
Enhanced Capacitive Touch Sensing Unit (CTSU2)
12-bit ADC, 12-bit DAC, LPACMP
32-bit general PWM timer, 16-bit general PWM timer, low power asynchronous general-purpose timer
RTC
SCI (UART, Simple SPI, Simple I²C)
SPI/I²C multi-master interface
CAN
Safety
Security and encryption

Find Other Products in RA Arm Cortex-M MCUs

RA2L1 48MHz, 32-bit MCUs with Arm Cortex-M23 Core

Description

The RA2L1 group is based on the Arm^® Cortex^®-M23 core, the most energy-efficient CPU among Arm Cortex-M today. The optimized processing and Renesas’ low power process technology makes it the industry's most energy-efficient ultra-low power microcontroller. The RA2L1 group supports a wide operating voltage range of 1.6V to 5.5V, and a maximum CPU clock frequency of 48MHz, lower active mode current, and standby mode current. The RA2L1 group also features an enhanced Capacitive Touch Sensing Unit (CTSU2), a set of serial communication interfaces, highly accurate converters, and timers. The products are available with pin counts ranging from 48-pin to 100-pin.

Parameters

Attributes	Value
Main CPU	Arm Cortex-M23
Program Memory (KB)	128, 256
RAM (KB)	32
Carrier Type	Bulk (Tray), Full Carton (Tray), Full Tray (Tray), Tape & Reel
Supply Voltage (V)	1.6 - 5.5
I/O Ports	37, 53, 69, 85
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)	5
SPI (ch)	2
I2C (#)	2
CAN (ch)	1
CAN-FD (ch)	0
Wireless	No
SDHI (ch)	0
High Resolution Output Timer	No
PWM Output (pin#)	13, 20
32-Bit Timer (ch)	4
16-Bit Timer (ch) (#)	3, 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)	9, 13, 17, 19
24-Bit Sigma-Delta A/D Converter (ch)	0
12-Bit D/A Converter (ch)	1
8-Bit D/A Converter (ch)	0
Capacitive Touch Sensing Unit (ch)	20, 30, 32
Image Codec	No
Segment LCD Controller	No
Security & Encryption	Unique ID, TRNG, AES

Package Options

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

	Dual-Needle Gauge Dual-needle gauge displays two real-time values for fast, intuitive analog monitoring.
	Current Loop Communication with AnalogPAK AnalogPAK™ enables a 4-20mA current loop with HART modem and FSK modulation support.
	Robust Operational Touch Panel with CAN FD Reliable HMI touch panel with CAN FD, haptics, and NFC for e-bikes, elevators, and industry.
	Bidirectional 3000W UPS Power Bidirectional 3kW telecom UPS system design with buck‑boost controllers, MCU, and power devices.
	Vehicle Telematics Box with 4G & GPS Vehicle telematics box enables 4G communication, GPS, remote management, data acquisition, and fault monitoring.
	OCPP Interface Card (OIC) for Smart EV Chargers OCPP enables EV chargers to connect with servers for remote control, real-time alerts, and flexibility.
	Solar-Powered Location Tracker The solar-powered location tracker offers modular design, versatile connectivity, and PV energy harvesting.
	Instrument Panel for Light Electric Vehicles Compact instrumental panel system with sensor support, Bluetooth LE, GPU, and voice control.
	Swappable Battery Charging Kiosk Swappable battery charging kiosk for LEVs offers reduced wait times, easy operation, and versatile functionality.
	Edge Voice User Interface (VUI) Voice control with RA MCUs offers efficient, network-free voice recognition for smart devices.
	Industrial CAN Sensor Network Industrial CAN network with Arm Cortex-M23 MCU offers reliable, secure communication and robust performance.
	Wi-Fi-Connected Furnace Controller Wi-Fi-connected furnace controller with precise sensing, safety compliance, and remote monitoring for modern HVAC systems.