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)
Description
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.
Parameters
| Attributes | Value |
|---|---|
| Main CPU | Arm Cortex-M23 |
| Program Memory (KB) | 256 |
| RAM (KB) | 32 |
| Carrier Type | Bulk (Tray), Full Carton (Tray), Full Tray (Tray), Tape & Reel |
| Supply Voltage (V) | - |
| I/O Ports | 20, 22, 25, 33, 49 |
| 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 ), ( 0 / 1 ) |
| USB HS (host ch/device ch) | ( 0 / 0 ) |
| USB SS (host ch/device ch) | ( 0 / 0 ) |
| SCI or UART (ch) | 3 |
| SPI (ch) | 1, 2 |
| I2C (#) | 2 |
| CAN (ch) | 1 |
| CAN-FD (ch) | 0 |
| Wireless | No |
| SDHI (ch) | 0 |
| High Resolution Output Timer | No |
| PWM Output (pin#) | 8, 11, 14 |
| 32-Bit Timer (ch) | 1 |
| 16-Bit Timer (ch) (#) | 3, 4, 6 |
| Standby operable timer | Yes |
| Asynchronous General Purpose Timer / Interval Timer (ch) | 2 |
| 16-Bit A/D Converter (ch) | 5, 8, 12, 17 |
| 14-Bit A/D Converter (ch) | 0 |
| 12-Bit A/D Converter (ch) | 0 |
| 24-Bit Sigma-Delta A/D Converter (ch) | 2, 4, 6, 8 |
| 12-Bit D/A Converter (ch) | 1 |
| 8-Bit D/A Converter (ch) | 2 |
| Capacitive Touch Sensing Unit (ch) | 9, 11, 16, 26 |
| Image Codec | No |
| Segment LCD Controller | No |
| Security & Encryption | Unique ID, TRNG, AES |
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Additional 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
Easily tune and evaluate a microcontroller (MCU) with built-in analog front end (AFE) without external measuring equipment or developing software for AFE evaluation.
