Renesas R7FA4M2AB3CFP#AA0

Overview

R7FA4M2AB3CFP from Renesas is a 100 MHz Arm Cortex-M33 microcontroller with 256 KB code flash, 8 KB data flash, and 128 KB SRAM (with parity/ECC), integrated USB 2.0 Full-Speed, SDHI, QSPI, dual 12-bit DACs, 12-bit ADC (22-channel), CAN, TrustZone security, and SCE9 crypto engine - deployed in industrial HMI, secure gateway, and motor control applications.

For engineers reviewing the R7FA4M2AB3CFP datasheet, R7FA4M2AB3CFP pinout, R7FA4M2AB3CFP application, or R7FA4M2AB3CFP equivalent, key selection considerations include its 100-pin LQFP package, -40°C to +105°C operating range, 2.7–3.6 V supply, dual DAC support, and hardware-accelerated AES/RSA/SHA256 for embedded security-critical designs.

Technical Context

The R7FA4M2AB3CFP implements Armv8-M architecture with TrustZone, enabling secure/non-secure world isolation across memory (flash/SRAM), peripherals, and MPU regions. It integrates dual Systick timers, CoreSight ETM-M33, and two independent watchdogs (WDT/IWDT) with dedicated clock sources.

Its analog subsystem includes ADC12 with 22 input channels and internal temperature sensor, plus two independent DAC12 modules supporting simultaneous analog output generation. The communication stack supports six SCI channels (UART/IIC/SPI/Manchester), two IIC, one SPI, one CAN, USBFS host/device, QSPI, SDHI, and SSIE audio interface - all accessible via configurable pin multiplexing with 5-V tolerant inputs on selected pins.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (PLQP0100KB-B), 14 mm × 14 mm, 0.5 mm pitch, lead-free (Sn only), RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Arm Cortex-M33 microcontroller applications.

Compared with R7FA4M2AD3CFP, the R7FA4M2AB3CFP trades flash capacity for lower unit cost while retaining identical security, analog, and connectivity capabilities - making it optimal for cost-sensitive industrial controls. Versus STM32H743VI, it offers superior out-of-box security integration and application-specific peripherals at lower power, but less peak CPU throughput.

Availability

R7FA4M2AB3CFP is available at Aetrix Electronics and suitable for industrial HMI, secure IoT gateways, and BLDC motor control applications requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for R7FA4M2AB3CFP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise markets.

The RA4M2 group is designed for secure, high-integration industrial and IoT edge applications - combining Arm TrustZone, hardware crypto acceleration, and rich analog/peripheral sets in scalable packages.

FAQ

What is the maximum operating frequency and core architecture of the R7FA4M2AB3CFP?

The R7FA4M2AB3CFP features an Arm Cortex-M33 core operating at up to 100 MHz, based on the Armv8-M architecture with security extension (TrustZone). It includes dual Systick timers, CoreSight ETM-M33 tracing, and MPU support for both secure and non-secure memory regions - enabling deterministic real-time execution with hardware-enforced security boundaries.

Does the R7FA4M2AB3CFP support USB host and device modes?

Yes, the R7FA4M2AB3CFP integrates a USB 2.0 Full-Speed module (USBFS) that supports both host and device controller operation. It includes an internal transceiver, 10-pipe endpoint buffer, and supports all USB 2.0 transfer types - allowing direct connection to USB peripherals or host-side enumeration without external PHY components.

How much flash and RAM does the R7FA4M2AB3CFP include, and what protection mechanisms are implemented?

The R7FA4M2AB3CFP includes 256 KB of code flash memory, 8 KB of data flash memory (rated for 100,000 program/erase cycles), and 128 KB of SRAM with parity or ECC error detection/correction. Memory protection is enforced via Arm MPU with separate secure/non-secure regions and TrustZone-configurable flash/SRAM partitioning.

What analog peripherals are integrated into the R7FA4M2AB3CFP?

The R7FA4M2AB3CFP integrates a 12-bit successive approximation ADC12 with up to 22 input channels, two independent 12-bit DAC12 modules, and an on-die temperature sensor (TSN). These are supported by internal reference voltages (VREFH0/VREFL0, VREFH/VREFL) and can be used concurrently for sensor signal acquisition and analog output generation.

Is the R7FA4M2AB3CFP pin-compatible with other RA4M2 family members?

Yes, the R7FA4M2AB3CFP shares the same 100-pin LQFP package (PLQP0100KB-B) and pinout with other RA4M2 variants in the FP package option, including R7FA4M2AC3CFP and R7FA4M2AD3CFP. This allows hardware reuse across firmware variants with differing flash sizes while maintaining identical PCB layout and peripheral routing.