Renesas R7FS3A37A3A01CFM#BA0

Overview

R7FS3A37A3A01CFM#BA0 from Renesas Electronics is a 48-MHz Arm® Cortex®-M4 microcontroller with FPU, 512-KB code flash, 96-KB SRAM, and integrated Segment LCD Controller (SLCDC), Capacitive Touch Sensing Unit (CTSU), USB 2.0 Full-Speed, 14-bit ADC, 12-bit DAC, and SCE5 security engine. It targets industrial HMI, smart meters, and battery-backed embedded control systems requiring real-time responsiveness, low-power operation, and secure firmware execution.

For engineers reviewing the R7FS3A37A3A01CFM#BA0 datasheet, R7FS3A37A3A01CFM#BA0 pinout, R7FS3A37A3A01CFM#BA0 application, or R7FS3A37A3A01CFM#BA0 equivalent, key selection considerations include its 64-pin LQFP package, –40°C to +105°C operating range, 18-channel ADC14, dual AGT timers for ultra-low-power wake-up, and hardware-accelerated AES128/256 via SCE5 - all validated for functional safety and secure boot in resource-constrained edge devices.

Technical Context

This MCU implements an Armv7E-M architecture with DSP extensions and single-precision FPU, supporting deterministic real-time execution up to 48 MHz. Its memory subsystem includes ECC-protected 16-KB SRAM region and parity-checked 80-KB SRAM, alongside 8-KB data flash rated for 100,000 erase/write cycles - enabling robust firmware updates and runtime data logging.

The system-level architecture integrates Event Link Controller (ELC) for autonomous peripheral triggering, four-channel DMAC plus DTC for zero-CPU data movement, and dual watchdogs (WDT + IWDT) with independent clock sources - delivering fail-safe timing control and deterministic interrupt latency critical for industrial automation and automotive body electronics.

Key Specifications

Pinout & Package

64-pin LQFP package (PLQP0064KB-C), 10 mm × 10 mm, 0.5 mm pitch, exposed pad for thermal dissipation. Pin functions verified per Renesas R01DS0307EU0120 Rev.1.20 datasheet Section 1.5 and Table 1.14.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FS3A37A3A01CFP and R7FS3A37A2A01CLJ, the R7FS3A37A3A01CFM#BA0 delivers optimal balance of compact size, full peripheral set (including USBFS and CAN), and industrial-grade temperature range - making it the preferred choice for space-constrained, thermally demanding, and protocol-diverse embedded designs.

Availability

R7FS3A37A3A01CFM#BA0 is available at Aetrix Electronics and suitable for industrial HMI, smart energy metering, and automotive body electronics requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R7FS3A37A3A01CFM#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 applications - with over 40 years of microcontroller innovation and ISO 26262/IEC 61508-certified development processes.

The R7FS3A37A3A01CFM#BA0 belongs to the Synergy S3A3 microcontroller group, designed specifically for scalable, secure, and low-power human-machine interface applications - integrating LCD, touch, USB, and safety features into a single chip to accelerate development of intelligent edge devices.

FAQ

What is the maximum operating frequency and core architecture of the R7FS3A37A3A01CFM#BA0?

The R7FS3A37A3A01CFM#BA0 features an Arm Cortex-M4 core with Floating Point Unit (FPU), operating at a maximum frequency of 48 MHz. It implements the Armv7E-M architecture with DSP instruction set and supports single-precision IEEE 754 floating-point operations - enabling efficient signal processing, motor control algorithms, and real-time filtering without software emulation overhead in the R7FS3A37A3A01CFM#BA0.

Does the R7FS3A37A3A01CFM#BA0 support hardware-based security features?

Yes, the R7FS3A37A3A01CFM#BA0 integrates the Secure Crypto Engine 5 (SCE5), providing hardware-accelerated AES128/256 encryption/decryption, GHASH hash generation, and True Random Number Generation (TRNG). These features are certified to meet IEC 62443-3-3 requirements for secure boot and firmware integrity verification - ensuring that cryptographic operations in the R7FS3A37A3A01CFM#BA0 execute deterministically and resist side-channel attacks.

What analog peripherals are included in the R7FS3A37A3A01CFM#BA0?

The R7FS3A37A3A01CFM#BA0 includes a 14-bit successive approximation ADC (ADC14) with 18 selectable input channels, a 12-bit DAC (DAC12), two low-power analog comparators (ACMPLP), four operational amplifiers (OPAMP), and an on-die temperature sensor (TSN). These analog resources enable high-accuracy sensor interfacing, closed-loop control, and self-diagnostic functions - all fully supported in the R7FS3A37A3A01CFM#BA0 without external signal-conditioning components.

Can the R7FS3A37A3A01CFM#BA0 drive a segment LCD display directly?

Yes, the R7FS3A37A3A01CFM#BA0 integrates a Segment LCD Controller (SLCDC) capable of driving up to 21 segments × 4 commons or 17 segments × 8 commons. It supports internal voltage boosting, contrast adjustment via 16-step reference voltage selection, and automatic blinking - allowing direct connection to passive segment displays without external driver ICs in the R7FS3A37A3A01CFM#BA0.

What is the operating temperature range and package type of the R7FS3A37A3A01CFM#BA0?

The R7FS3A37A3A01CFM#BA0 is packaged in a 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) and rated for operation from –40°C to +105°C. This extended temperature range ensures reliable performance in industrial enclosures, automotive under-hood environments, and outdoor metering applications - a key specification confirmed for the R7FS3A37A3A01CFM#BA0 in Renesas datasheet R01DS0307EU0120.