Renesas R7FA4M3AD3CFB#BA0

Overview

R7FA4M3AD3CFB#BA0 from Renesas is a 100 MHz Arm Cortex-M33 microcontroller with 512 KB code flash, 8 KB data flash, 128 KB SRAM (with ECC), USB 2.0 Full-Speed, dual CAN, SDHI, QSPI, dual 12-bit ADCs (5 Msps interleaved), dual 12-bit DACs, CTSU, and integrated Secure Crypto Engine with TrustZone for secure embedded control in industrial HMI and connected edge devices.

For engineers reviewing the R7FA4M3AD3CFB#BA0 datasheet, R7FA4M3AD3CFB#BA0 pinout, R7FA4M3AD3CFB#BA0 application, or R7FA4M3AD3CFB#BA0 equivalent, this page delivers verified specifications, package mapping to 144-pin LQFP, validated peripheral integration, security architecture details, and real-world use context for rapid evaluation and design-in.

Technical Context

The R7FA4M3AD3CFB#BA0 implements Armv8-M with TrustZone, enabling hardware-isolated secure/non-secure execution environments. Its memory subsystem includes ECC-protected 128 KB SRAM, 512 KB code flash with background SWAP operation, and 8 KB data flash rated for 100,000 P/E cycles - supporting robust firmware updates and data logging.

Peripherals are tightly coupled via Event Link Controller (ELC) and Data Transfer Controller (DTC), allowing autonomous signal routing (e.g., ADC trigger → DMA → SRAM) without CPU intervention. The Secure Crypto Engine supports AES, RSA, ECC, SHA256, and tamper detection across three dedicated tamper pins.

Key Specifications

Pinout & Package

Package: 144-pin LQFP (PLQP0144KA-B), 20 mm × 20 mm, 0.5 mm pitch, operating temperature range −40°C to +105°C.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R7FA4M3AF3CFB#BA0, the R7FA4M3AD3CFB#BA0 trades flash capacity for cost-sensitive deployment; versus R7FA6M5BH3CFB#AA0, it offers identical security and peripheral breadth at lower power and price - ideal for resource-constrained edge nodes where Ethernet is unnecessary.

Availability

R7FA4M3AD3CFB#BA0 is available at Aetrix Electronics and suitable for industrial HMI, smart metering, automotive body control, and edge gateway applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R7FA4M3AD3CFB#BA0 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 Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.

The RA4M3 Group targets secure, high-integration microcontrollers for industrial and consumer edge applications - emphasizing TrustZone-based security, rich analog/motor control peripherals, and low-power connectivity without sacrificing performance.

FAQ

What is the maximum operating frequency of the R7FA4M3AD3CFB#BA0?

The R7FA4M3AD3CFB#BA0 operates at a maximum frequency of 100 MHz using its Arm Cortex-M33 core. This speed is achieved with the on-chip PLL driven by the main clock oscillator (8–24 MHz) or high-speed on-chip oscillator (HOCO). The R7FA4M3AD3CFB#BA0 maintains full peripheral functionality and timing compliance at this frequency across its specified temperature range of −40°C to +105°C.

Does the R7FA4M3AD3CFB#BA0 include hardware cryptographic acceleration?

Yes, the R7FA4M3AD3CFB#BA0 integrates the Secure Crypto Engine 9 (SCE9), which provides hardware acceleration for AES, RSA, ECC, DSA, SHA224, SHA256, and GHASH. It also includes a 128-bit unique ID, tamper detection on up to three dedicated pins, and power analysis resistance - all coordinated with Arm TrustZone to establish a certified secure element foundation within the R7FA4M3AD3CFB#BA0.

What package type and pin count does the R7FA4M3AD3CFB#BA0 use?

The R7FA4M3AD3CFB#BA0 uses a 144-pin LQFP package (PLQP0144KA-B), measuring 20 mm × 20 mm with 0.5 mm pitch. It provides 109 general-purpose I/O pins, 21 of which are 5-V tolerant, and supports full peripheral access including USB, CAN, QSPI, SDHI, and CTSU - confirmed in the official Renesas RA4M3 datasheet R01DS0368EJ0150.

How much SRAM and flash memory does the R7FA4M3AD3CFB#BA0 have?

The R7FA4M3AD3CFB#BA0 includes 128 KB of on-chip SRAM with Error Correction Code (ECC), 512 KB of code flash memory, and 8 KB of data flash memory rated for 100,000 program/erase cycles. The code flash supports background operation and SWAP functionality, enabling reliable over-the-air firmware updates without halting application execution on the R7FA4M3AD3CFB#BA0.

Is the R7FA4M3AD3CFB#BA0 qualified for automotive applications?

No, the R7FA4M3AD3CFB#BA0 is not AEC-Q100 qualified. It is rated for industrial temperature range (−40°C to +105°C) and intended for industrial automation, smart meters, and consumer edge devices. For automotive body control modules, Renesas offers AEC-Q100 qualified variants such as the R7FA6M5BH3CFB#AA0 - the R7FA4M3AD3CFB#BA0 lacks automotive-specific qualification and diagnostic features required for ASIL-B systems.