Renesas R5F100GHAFB#V0

Overview

R5F100GHAFB#V0 from Renesas is a 48-pin LFQFP (7 × 7 mm, 0.5-mm pitch), industrial-grade RL78/G13 16-bit microcontroller with 128 KB flash, 8 KB data flash, 12 KB RAM, 32 MHz max CPU speed, and -40°C to +105°C operation - deployed in smart metering, industrial sensors, and battery-powered HMI control units.

For engineers reviewing the R5F100GHAFB#V0 datasheet, R5F100GHAFB#V0 pinout, R5F100GHAFB#V0 application, or R5F100GHAFB#V0 equivalent, key selection criteria include ultra-low-power HALT/STOP/SNOOZE modes (0.57 μA RTC+LVD), integrated 10-bit ADC (26 channels), real-time clock with calendar/alarm, and LIN-capable UART for automotive body electronics and industrial IoT edge nodes.

Technical Context

The R5F100GHAFB#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting variable instruction execution time (0.03125 μs at 32 MHz to 30.5 μs at 32.768 kHz) and 1 MB address space. It integrates dual-clock domains: high-speed on-chip oscillator (±1.0% accuracy, 1–32 MHz selectable) and dedicated low-speed oscillator for watchdog and RTC.

Peripherals include 8-channel 16-bit timers, 12-bit interval timer, real-time clock with calendar and clock correction, 2–4 channel DMA, 16×16/32÷32 multiplier/divider, and multi-protocol serial interfaces - CSI (SPI-like), UART/LIN (up to 4 channels), and I²C (up to 10 channels) - all configurable via register-based control logic without external glue logic.

Key Specifications

Pinout & Package

Package: 48-pin LFQFP (7 × 7 mm, 0.5-mm pitch), lead-free, RoHS-compliant, JEDEC standard footprint.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit microcontroller applications.

Compared with R5F100GJAFB#V0, the R5F100GHAFB#V0 trades flash capacity for lower unit cost and identical peripheral set; versus R5F101GHAFB#V0, it adds 8 KB data flash for robust parameter retention without external EEPROM - critical for calibration-critical industrial instruments.

Availability

R5F100GHAFB#V0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and automotive body electronics requiring stable component supply across long production lifecycles.

Supply support for R5F100GHAFB#V0 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 ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally constrained industrial and consumer applications - balancing performance, integration, and energy efficiency.

FAQ

What is the maximum operating frequency and associated performance of the R5F100GHAFB#V0?

The R5F100GHAFB#V0 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS of processing performance. Its RL78 CPU core features a 3-stage pipeline and supports variable instruction timing - enabling deterministic real-time response in motor control and sensor acquisition tasks. The R5F100GHAFB#V0 maintains full peripheral functionality at all supported clock speeds, including ADC sampling and UART baud rate generation.

Does the R5F100GHAFB#V0 support LIN bus communication, and what hardware features enable it?

Yes, the R5F100GHAFB#V0 supports LIN 2.2 protocol via its UART0 peripheral, which includes dedicated hardware for break field detection, sync field generation, and checksum calculation. This eliminates software overhead for LIN framing and ensures reliable communication in automotive body electronics. The R5F100GHAFB#V0 also supports automatic wake-up on dominant bus level - essential for low-power LIN slave nodes in vehicle door modules.

How does the R5F100GHAFB#V0 manage ultra-low-power operation, and what are the key current specifications?

The R5F100GHAFB#V0 achieves ultra-low-power operation through three primary modes: HALT (66 μA/MHz), STOP (0.57 μA with RTC and LVD active), and SNOOZE (low-power peripheral operation with CPU halted). These modes are controlled via dedicated system registers and supported by on-chip power management circuits. The R5F100GHAFB#V0 maintains full RTC calendar functionality and voltage monitoring in STOP mode - enabling decade-long battery life in wireless sensor deployments.

What are the memory resources available on the R5F100GHAFB#V0, and how is data flash utilized?

The R5F100GHAFB#V0 integrates 128 KB of code flash, 8 KB of data flash, and 12 KB of RAM. The data flash supports background operation (BGO), allowing program execution from code flash while rewriting data flash - essential for firmware updates and parameter storage. It guarantees 1,000,000 write cycles at VDD = 1.8–5.5 V. The R5F100GHAFB#V0 uses this resource for calibration data retention, event logging, and secure key storage without external EEPROM.

Is the R5F100GHAFB#V0 pin-compatible with other RL78/G13 variants, and what package does it use?

Yes, the R5F100GHAFB#V0 uses a 48-pin LFQFP (7 × 7 mm, 0.5-mm pitch) package and shares identical pinout with all RL78/G13 devices in the same 48-pin LFQFP variant (e.g., R5F100GJAFB#V0, R5F100GGAFB#V0). This enables direct substitution within the same package family for memory or feature scaling. The R5F100GHAFB#V0 is not pin-compatible with QFN or LQFP variants due to differing pin counts and layouts.