Renesas R5F100MJGFA#30

Overview

R5F100MJGFA#30 from Renesas is a 32-bit RL78/G13 microcontroller with 256 KB flash memory, 8 KB data flash, and 16 KB RAM, operating at up to 32 MHz (41 DMIPS), featuring ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD mode) for industrial control and sensor interface applications.

For engineers reviewing the R5F100MJGFA#30 datasheet, R5F100MJGFA#30 pinout, R5F100MJGFA#30 application, or R5F100MJGFA#30 equivalent, key selection criteria include its LQFP-80 package, -40°C to +105°C industrial temperature grade (G suffix), integrated 10-bit ADC (26 channels), real-time clock with calendar, and LIN-capable UART interfaces.

Technical Context

The R5F100MJGFA#30 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting variable instruction execution time (0.03125 μs at 32 MHz to 30.5 μs at 32.768 kHz). It integrates dual-clock domains: high-speed on-chip oscillator (±1.0% accuracy, selectable 1–32 MHz) and dedicated low-speed oscillator for watchdog and RTC.

It features hardware peripherals including 16-bit timers (12 channels), 12-bit interval timer, background operation for data flash rewriting (BGO), DMA controller (4 channels), and multi-protocol serial interfaces - CSI (SPI-like), UART/LIN (4 channels), and I²C (up to 10 channels) - all configurable via register-based control logic without external glue logic.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (14 mm × 14 mm, 0.65 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100MJGFA#30, R5F101MJGFA#30 removes data flash to reduce cost and die size while retaining identical real-time control capability, whereas RA2A1GBM20FB#AC0 offers higher compute throughput and security extensions but requires redesign of peripheral initialization and driver stack.

Availability

R5F100MJGFA#30 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, automotive body electronics, and home appliance control panels requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for R5F100MJGFA#30 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 IoT markets.

The RL78/G13 product line delivers true low-power 32-bit MCUs optimized for cost-sensitive industrial and consumer applications requiring robust real-time control, mixed-signal integration, and long-term supply stability.

FAQ

What is the maximum operating frequency and associated performance of the R5F100MJGFA#30?

The R5F100MJGFA#30 operates at up to 32 MHz with a measured performance of 41 DMIPS. This is achieved using the high-speed on-chip oscillator, which maintains ±1.0% accuracy across 1.8–5.5 V and -40°C to +105°C. The RL78 core's 3-stage pipeline and efficient CISC instruction set enable deterministic real-time response critical for motor control and sensor fusion tasks in the R5F100MJGFA#30.

Does the R5F100MJGFA#30 support LIN bus communication natively?

Yes, the R5F100MJGFA#30 includes hardware UART modules with built-in LIN bus support compliant with ISO 17987. Two of its four UART channels can operate in LIN master or slave mode with automatic sync-break detection, checksum calculation, and header/response timing control - eliminating software bit-banging and ensuring robust communication in automotive body electronics using the R5F100MJGFA#30.

What are the data retention and endurance specifications for the data flash in the R5F100MJGFA#30?

The R5F100MJGFA#30 integrates 8 KB of data flash memory rated for 1,000,000 write/erase cycles (typical) with data retention guaranteed for 20 years at 85°C. It supports background operation (BGO), enabling concurrent code execution and data flash rewriting. Voltage requirements for reprogramming are identical to the main supply: 1.8–5.5 V, allowing seamless in-field updates without auxiliary power rails in the R5F100MJGFA#30.

How does the R5F100MJGFA#30 achieve ultra-low power consumption in STOP mode?

The R5F100MJGFA#30 achieves 0.57 μA STOP mode current by powering down the CPU, flash, and most peripherals while retaining operation of the real-time clock (RTC), low-voltage detector (LVD), and RAM retention. The dedicated low-speed on-chip oscillator (32.768 kHz) drives the RTC independently, and wake-up events - such as RTC alarm, key interrupt, or external pin change - restore full operation within microseconds in the R5F100MJGFA#30.

What package type and pin count does the R5F100MJGFA#30 use, and is it RoHS-compliant?

The R5F100MJGFA#30 uses an 80-pin LQFP package (14 mm × 14 mm, 0.65 mm pitch) with exposed pad for thermal dissipation. It is fully RoHS-compliant and moisture sensitivity level 3 (MSL3), qualified for lead-free reflow soldering per J-STD-020. The #30 suffix indicates tray packaging, and the FA designation confirms the LQFP-0.65 mm pitch variant used in the R5F100MJGFA#30.