Renesas RA2A1

The RA2A1 group is a high-performance, low-power analog microcontroller based on an Arm^® Cortex^®-M23 core with a 48MHz clock frequency and a wide range of analog front ends, including two types of A/D converters. This group supports a 16-bit SAR A/D converter, a 24-bit sigma-delta A/D converter, a 12-bit D/A converter, comparators, and operational amplifiers. These functions are suitable for applications that measure and adjust sensor signals with high accuracy. In addition, UART, I2C, simple SPI, CAN, and USB 2.0 Full-Speed are also integrated as peripheral functions, enabling easy communication with other devices. The RA2A1 supports a wide operating voltage range of 1.6V to 5.5V, enabling communication with devices operating at 5V without level shifters. The RA2A1 MCU targets industrial sensor applications with low power consumption and low-cost advantage.

Features

• 48MHz Arm Cortex-M23
• 256kB Flash memory and 32kB SRAM
• 8kB Data Flash to store data as in EEPROM
• Scalable from 32-pin to 64-pin packages
• Capacitive touch sensing unit
• 16-bit SAR A/D, 24-bit SD A/D
• 12-bit D/A, 8-bit D/A
• OPAMP (3ch), ACMP-HS/LP
• USB 2.0 Full Speed
• CAN 2.0
• SCI (UART, Simple SPI, Simple I2C)

Applications

• Industrial automation (photoelectric sensor, fiber sensor, temperature sensor)
• Process automation (pressure sensor, flow control meter, single phase meter)
• Building automation/home appliance (smoke detector)
• Healthcare (pulse oximeters, body composition measurement)
• General purpose

Block diagram

Click to enlarge

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Renesas

RA MCU Family

The Renesas RA Family is a new 32-bit MCU family built on the Arm® Cortex®-M core architecture. The Renesas RA Family meets the scalability, power consumption and performance needs of nearly any embedded systems end-product.

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