Item specifics
Description
R7FA4M2AD3CFP#AA0 Product Overview
When selecting an MCU for industrial IoT edge devices or secure terminals, designers typically focus on three things: whether the compute can meet real-time control requirements, whether security features cover IoT compliance needs, and whether I/O and peripherals are rich enough to reduce external components. The Renesas R7FA4M2AD3CFP#AA0 from the RA4M2 series was built for exactly that requirement.
The R7FA4M2AD3CFP features a 100MHz Arm Cortex-M33 core based on the Armv8-M architecture, integrating Arm TrustZone security extension and Renesas' Secure Crypto Engine (SCE). The SCE of the R7FA4M2AD3CFP includes multiple symmetric and asymmetric crypto accelerators, advanced key management, secure lifecycle management, and tamper detection. Manufactured on an efficient 40nm process, the R7FA4M2AD3CFP offers 512KB code flash with background operation, 128KB SRAM with parity/ECC, and 8KB data flash. The R7FA4M2AD3CFP consumes as low as 81μA/MHz running the CoreMark algorithm from flash, ideal for power-sensitive industrial and IoT applications.
Peripherals of the R7FA4M2AD3CFP include 78 I/O ports, 13-channel 12-bit SAR ADC, 2-channel 12-bit DAC, Capacitive Touch Sensing Unit (CTSU), USB 2.0 Full-Speed (host and device), CAN 2.0B, quad SPI, SCI (UART/simple SPI/simple I2C), independent SPI/I2C multi-master interface, SDHI, and MMC. The R7FA4M2AD3CFP operates at a voltage range from 2.7V to 3.6V with an operating temperature of -40°C to +105°C in a QFP-100(14×14mm) package.
R7FA4M2AD3CFP#AA0 Key Specifications
| Brand | Renesas |
| Model | R7FA4M2AD3CFP#AA0 |
| Series | RA4M2 |
| CPU Core | Arm Cortex-M33 (Armv8-M, 32-bit single-core, TrustZone) |
| Max Frequency | 100 MHz |
| Process | 40nm |
| Program Memory | 512KB Flash (background operation) |
| RAM | 128KB SRAM (parity/ECC) |
| Data Flash (EEPROM) | 8KB |
| Standby SRAM | 1KB |
| Operating Voltage | 2.7V ~ 3.6V |
| I/O Count | 78 |
| ADC | 13 channels × 12-bit SAR |
| DAC | 2 channels × 12-bit |
| Connectivity | CAN 2.0B, I2C, QSPI, SCI (UART/SPI/I2C), SPI, USB 2.0 Full-Speed |
| Capacitive Touch | CTSU |
| Security | Arm TrustZone, SCE (AES 128/192/256, ECC/RSA 4K/DSA, SHA224/SHA256, GHASH, TRNG, Tamper Detection) |
| Timers | 4×32-bit, 4×16-bit, 6×async general/interval |
| Power | 81 μA/MHz (CoreMark from flash) |
| Package | QFP-100(14×14mm), 0.5mm pitch |
| Operating Temp | -40°C ~ +105°C |
| MSL | Level 3 (168 Hours) |
R7FA4M2AD3CFP#AA0 Applications
The R7FA4M2AD3CFP is used in industrial IoT edge devices and secure terminals
The R7FA4M2AD3CFP supports industrial applications (robotics, door openers, sewing machines, vending machines, UPS)
The R7FA4M2AD3CFP enables security applications (fire detection, burglar detection, panel control)
The R7FA4M2AD3CFP is used in metering (electricity, water, gas meters)
The R7FA4M2AD3CFP powers smart home and building automation
The R7FA4M2AD3CFP drives HVAC control and enhanced premises security
Selection & Alternatives
Within the same RA4M2 family, DigiKey lists the R7FA4M2AD3CFP#BA0 as a different quality grade version. The R7FA4M2AD3CFM#AA0 is the 64-pin package version and the R7FA4M2AD3CFL#AA0 is the 48-pin package version, with identical core specifications but different I/O counts. The RA4M1 series (R7FA4M1AB3CFP#AA0) offers a pin-compatible entry-level alternative with smaller flash capacity (256KB) for cost-sensitive applications.
Renesas provides the EK-RA4M2 evaluation kit featuring the R7FA4M2AD3CFP MCU, supporting the Flexible Software Package (FSP) and e2 studio IDE for rapid evaluation and embedded application development. The R7FA4M2AD3CFP is supported by FSP, an open and flexible ecosystem concept built on FreeRTOS and expandable to use other RTOS and middleware.
FAQ
Q: What security features does the Cortex-M33 core support?
A: The R7FA4M2AD3CFP integrates Arm TrustZone security extension and Renesas' Secure Crypto Engine (SCE). The SCE includes AES (128/192/256), ECC/RSA (4K)/DSA, SHA224/SHA256, GHASH symmetric and asymmetric crypto accelerators, plus TRNG and tamper detection for secure element functionality.
Q: How is the power consumption?
A: The R7FA4M2AD3CFP consumes as low as 81μA/MHz running the CoreMark algorithm from flash, making it ideal for high-performance, low-power industrial and IoT edge applications.
Q: Does it support capacitive touch?
A: Yes. The R7FA4M2AD3CFP integrates a Capacitive Touch Sensing Unit (CTSU) for touch buttons, sliders, and wheels without an external touch controller.
Q: What application scenarios is this MCU suitable for?
A: The R7FA4M2AD3CFP is suitable for industrial IoT edge devices, security systems (fire detection, burglar detection), metering (electricity, water meters), industrial control (robotics, door openers, vending machines, UPS), smart home and building automation, and HVAC control.
QIXINWEI (Shenzhen Qixinwei Technology Co., Ltd.) stocks these parts with same-week shipment from Shenzhen, and offers BOM sourcing plus PCBA customization from prototype to production. Share your BOM and we'll flag cross-references and long-lead items before they stall your build.