Renesas R7FA4E10B2CFM#HA0

Overview

R7FA4E10B2CFM from Renesas is a 32-bit Arm Cortex-M33 microcontroller operating at up to 100 MHz, featuring 256 KB code flash, 8 KB data flash, and 128 KB SRAM with parity. It integrates USB 2.0 Full-Speed, Quad SPI, CAN 2.0B, 12-bit ADC (9 channels), and 12-bit DAC for embedded control in industrial HMI and sensor gateway applications.

For engineers reviewing the R7FA4E10B2CFM datasheet, R7FA4E10B2CFM pinout, R7FA4E10B2CFM application, or R7FA4E10B2CFM equivalent, key selection criteria include its LQFP-64 package, TrustZone-enabled security partitioning, battery-backed RTC with calendar mode, and dual GPT32 timer support for motor control timing precision.

Technical Context

The R7FA4E10B2CFM implements Armv8-M architecture with TrustZone, supporting secure/non-secure execution states via separate MPU_S (8 regions) and MPU_NS (8 regions). Its clock system includes PLL, HOCO/MOCO/LOCO oscillators, and CAC for frequency accuracy validation.

Peripheral integration centers on deterministic real-time control: five AGT timers for low-power event counting, four SCI modules with UART/SPI/IIC/Manchester modes, and QSPI for external serial flash boot or data storage-enabling firmware updates without external memory controllers.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (PLQP0064KB-C), 10 mm × 10 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 microcontroller applications.

Compared with R7FA4E10D2CFM and R7FA6M2AF3CFM, the R7FA4E10B2CFM delivers optimal balance of security (TrustZone), connectivity (USBFS/CAN/QSPI), and analog integration (ADC12/DAC12) in a cost-optimized 256 KB flash variant - ideal for volume production where firmware size is stable and deterministic real-time control is prioritized over raw compute throughput.

Availability

R7FA4E10B2CFM is available at Aetrix Electronics and suitable for industrial HMI, smart sensor gateways, USB-C powered peripherals, and motor control interface modules requiring stable component supply and long-term lifecycle support.

Supply support for R7FA4E10B2CFM 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, and power solutions for automotive, industrial, and IoT markets.

The RA4E1 group targets cost-sensitive, high-integration embedded applications demanding security, USB connectivity, and analog capability - designed for rapid development with Flexible Software Package (FSP) and Arm ecosystem compatibility.

FAQ

What is the maximum operating frequency of the R7FA4E10B2CFM?

The R7FA4E10B2CFM features an Arm Cortex-M33 core with a maximum operating frequency of 100 MHz. This speed is achieved using the integrated PLL with external crystal (8–24 MHz) or high-speed on-chip oscillator (HOCO). The core maintains full performance across its specified operating voltage range of 2.7–3.6 V, and all peripherals-including USBFS, CAN, and QSPI-are fully functional at this clock rate. The R7FA4E10B2CFM datasheet confirms timing compliance up to 100 MHz under worst-case conditions.

Does the R7FA4E10B2CFM support USB device and host functionality?

Yes, the R7FA4E10B2CFM includes a USB 2.0 Full-Speed module (USBFS) that supports both device and host roles. As a device, it implements all standard USB transfer types (control, interrupt, bulk, isochronous) with an internal transceiver-no external PHY required. As a host, it supports full-speed and low-speed devices. The module provides 10 configurable pipes and buffer memory, enabling HID, CDC, and MSC class implementations directly on the R7FA4E10B2CFM without additional silicon.

How many analog input channels does the R7FA4E10B2CFM ADC support?

The R7FA4E10B2CFM integrates a 12-bit successive approximation ADC (ADC12) with up to 9 selectable analog input channels (AN000–AN016, with some shared with GPIO). These channels are accessible via dedicated pins including P000–P015, P100–P113, and P400–P411. The ADC supports programmable sample rates up to 1 MSPS and includes hardware triggers from AGT, GPT, or external pins-enabling synchronized acquisition in motor control or sensor monitoring applications using the R7FA4E10B2CFM.

What security features are implemented in the R7FA4E10B2CFM?

The R7FA4E10B2CFM implements Arm TrustZone for Armv8-M, enabling hardware-enforced separation of secure and non-secure code and data. It includes a secure MPU (8 regions), non-secure MPU (8 regions), and configurable security attribution for flash, SRAM, and peripherals. Additionally, it provides a true random number generator (TRNG), unique chip ID, and access control circuitry. While SCE9 security accelerator functions beyond these are not guaranteed per datasheet note, the R7FA4E10B2CFM delivers foundational hardware security for secure boot and firmware authentication.

Is the R7FA4E10B2CFM pin-compatible with other RA4E1 family members?

Yes, the R7FA4E10B2CFM in the 64-pin LQFP package (FM suffix) is pin-compatible with other RA4E1 devices sharing the same PLQP0064KB-C footprint, including R7FA4E10D2CFM. All I/O, power, clock, debug, and peripheral signal assignments match exactly across these variants. This allows direct substitution in existing designs when upgrading flash capacity or maintaining identical hardware while changing firmware requirements-no PCB modification is needed for the R7FA4E10B2CFM to replace or be replaced by its pin-compatible siblings.