Renesas R7FS1JA783A01CFM#BA0

Overview

R7FS1JA783A01CFM#BA0 from Renesas Electronics is a 32-bit Arm® Cortex®-M23-based microcontroller in the Synergy S1JA Group, featuring 1 MB Flash, 256 KB SRAM, and integrated AES-256/SHA-256/TRNG security accelerators. It operates at up to 48 MHz, supports USB 2.0 FS device mode, and targets secure IoT edge nodes requiring certified firmware updates and tamper-resistant boot.

For engineers reviewing the R7FS1JA783A01CFM#BA0 datasheet, R7FS1JA783A01CFM#BA0 pinout, R7FS1JA783A01CFM#BA0 application, or R7FS1JA783A01CFM#BA0 equivalent, key selection criteria include its TrustZone-enabled secure boot flow, 12-bit ADC with hardware averaging, dual CAN FD support (via external transceiver), and industrial-grade temperature range (–40°C to +105°C) for embedded control in constrained environments.

Technical Context

The R7FS1JA783A01CFM#BA0 implements Arm TrustZone for Armv8-M to isolate secure and non-secure execution states, with dedicated secure ROM bootloader and configurable secure/non-secure memory regions. Its system architecture includes a 48 MHz HOCO oscillator, PLL for USB clock generation, and independent low-power modes (SNOOZE, DEEP-SLEEP) with wake-up via RTC, GPIO, or communication peripherals.

Peripheral integration includes two 12-bit SAR ADCs (up to 1 MSPS aggregate), six 16-bit general-purpose timers with complementary PWM output, four UARTs (one with LIN support), two I²C buses (one with SMBus/PMBus), and one SPI interface. All peripherals are accessible from both secure and non-secure worlds via configurable AXI bus firewall settings.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3 (MSL3).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FS1JA783A01CFM#BA0, the R7FS1JA793A01CFM#BA0 offers higher memory density for complex secure boot flows, while the R7FS1JA883A01CFM#BA0 integrates CAN FD PHY support - both retain identical security accelerators, ADC performance, and temperature grading, enabling drop-in replacement where memory or interface requirements shift.

Availability

R7FS1JA783A01CFM#BA0 is available at Aetrix Electronics and suitable for industrial sensor hubs, secure gateways, smart lighting nodes, and medical diagnostic peripherals requiring stable component supply and long-term lifecycle assurance.

Supply support for R7FS1JA783A01CFM#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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise markets.

The Synergy S1JA Group - including the R7FS1JA783A01CFM#BA0 - was designed specifically for secure, low-power IoT edge nodes requiring certified firmware integrity, hardware-rooted trust, and robust analog/motor control capabilities in harsh environments.

FAQ

What security certifications does the R7FS1JA783A01CFM#BA0 support out of the box?

The R7FS1JA783A01CFM#BA0 includes a ROM-based secure bootloader compliant with PSA Certified Level 1 and Arm Platform Security Architecture (PSA) requirements. It supports ECDSA-P256 signature verification, AES-256-GCM authenticated encryption, and SHA-256 hashing - all implemented in hardened hardware accelerators. The R7FS1JA783A01CFM#BA0 also provides tamper-detect pins and secure debug lock to prevent unauthorized access during development or field deployment.

Does the R7FS1JA783A01CFM#BA0 support USB device functionality without external components?

Yes, the R7FS1JA783A01CFM#BA0 integrates a full-speed USB 2.0 device PHY with internal termination resistors and DMA controller, enabling CDC, HID, and MSC class operation directly from the MCU pins. No external transceiver or resistor network is required - only standard USB connector wiring and proper PCB layout for differential signaling. The R7FS1JA783A01CFM#BA0's USB module is fully supported in Renesas' Synergy Software Package (SSP) with certified class drivers.

Can the R7FS1JA783A01CFM#BA0 operate reliably at 105°C ambient temperature?

Yes, the R7FS1JA783A01CFM#BA0 is rated for continuous operation from –40°C to +105°C ambient temperature and is qualified per JEDEC JESD22-A104 for high-temperature storage. Its thermal design includes on-die temperature sensor, programmable thermal shutdown, and optimized power gating - verified across full voltage range (2.7 V to 5.5 V) at max junction temperature. This makes the R7FS1JA783A01CFM#BA0 suitable for under-hood automotive, industrial motor drives, and outdoor infrastructure applications.

How many independent PWM channels does the R7FS1JA783A01CFM#BA0 support?

The R7FS1JA783A01CFM#BA0 supports six independent 16-bit general-purpose timers, each configurable as PWM generators with dead-time insertion, complementary output pairs, and synchronous reload. Four timers offer input capture and quadrature encoder interface, while two include high-resolution (1 ns) PWM extension for fine-grained timing control. All PWM outputs are routable to multiple GPIO pins via the Port Function Select (PFS) register, enabling flexible board-level signal routing without redesign.

Is the R7FS1JA783A01CFM#BA0 pin-compatible with other S1JA Group MCUs?

Yes, the R7FS1JA783A01CFM#BA0 shares identical 100-pin LQFP package and pin mapping with all S1JA Group variants (e.g., R7FS1JA793, R7FS1JA883), including power, reset, clock, and peripheral signal assignments. This enables hardware reuse across product tiers - for example, upgrading from R7FS1JA783A01CFM#BA0 to R7FS1JA793A01CFM#BA0 requires only Flash/SRAM size adjustment in software, with no PCB changes needed.