Renesas R5F100GHDFB#V0

Overview

R5F100GHDFB#V0 from Renesas is a 48-pin LFQFP-packaged 16-bit RL78/G13 microcontroller with 128 KB flash, 8 KB data flash, and 12 KB RAM, operating from 1.6 V to 5.5 V. It delivers 41 DMIPS at 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD), and integrates 16-bit timers, 10-bit ADC (26 channels), UART/LIN, I²C, CSI, and real-time clock - deployed in industrial sensor nodes and battery-powered control modules.

For engineers reviewing the R5F100GHDFB#V0 datasheet, R5F100GHDFB#V0 pinout, R5F100GHDFB#V0 application, or R5F100GHDFB#V0 equivalent, key selection criteria include its industrial-grade temperature range (−40°C to +105°C), on-chip debug support, self-programmable flash with boot swap, background data flash rewriting, and integrated LVD with 14-level interrupt/reset selection.

Technical Context

The R5F100GHDFB#V0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). Its memory subsystem includes 128 KB code flash (1 KB block size), 8 KB data flash with 1M rewrite cycles, and 12 KB SRAM - all accessible within a 1 MB address space.

Peripherals are tightly coupled to low-power operation: DMA supports 4 channels with 2-clock transfers between SFR and RAM; the 10-bit ADC operates across full VDD range (1.6–5.5 V) with internal 1.45 V reference and temperature sensor; and serial interfaces include up to 8 CSI, 4 UART/LIN, and 10 I²C channels - configurable for mixed-voltage I/O (1.8/2.5/3.0 V compatibility).

Key Specifications

Pinout & Package

Package: 48-pin LFQFP (7 mm × 7 mm, 0.5 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 R5F100GHDFB#V0, R5F100GJDFB#V0 provides headroom for future firmware expansion without layout change, while R5F101GHDFB#V0 reduces BoM cost by removing redundant data flash - enabling trade-offs between field-upgradability and unit cost.

Availability

R5F100GHDFB#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, and programmable logic relays requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F100GHDFB#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, and power solutions for automotive, industrial, and IoT markets.

The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - balancing performance, integration, and energy efficiency for battery-operated and thermally constrained systems.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating of the R5F100GHDFB#V0?

The R5F100GHDFB#V0 achieves a maximum operating frequency of 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS of processing performance. This benchmark is measured under standard conditions (VDD = 1.8–5.5 V, TA = −40°C to +105°C) and reflects the RL78 CPU core's optimized 3-stage pipeline execution efficiency - critical for real-time control loops in the R5F100GHDFB#V0's target applications.

Does the R5F100GHDFB#V0 support in-system programming and secure firmware updates?

Yes, the R5F100GHDFB#V0 supports full in-system programming via its on-chip debug interface and self-programming capability. It includes boot swap functionality for safe firmware updates and a flash shield window to prevent unauthorized access to protected code regions. These features enable field-upgradable firmware without requiring external programmers - a key design enabler for the R5F100GHDFB#V0 in remote or maintenance-constrained deployments.

How many analog input channels does the R5F100GHDFB#V0 ADC support, and what reference options are available?

The R5F100GHDFB#V0 integrates a 10-bit successive-approximation ADC with up to 26 analog input channels. It supports both external reference inputs and an internal 1.45 V reference voltage, which is factory-trimmed and temperature-compensated. The internal reference allows stable ADC measurements independent of VDD fluctuations - a critical capability for precision sensing in the R5F100GHDFB#V0's industrial and environmental monitoring applications.

What low-power modes are available on the R5F100GHDFB#V0, and what is the lowest achievable current draw?

The R5F100GHDFB#V0 offers HALT, STOP, and SNOOZE low-power modes. In STOP mode with only the real-time clock (RTC) and low-voltage detector (LVD) active, it draws just 0.57 μA - verified across the full industrial temperature range (−40°C to +105°C). This ultra-low quiescent current enables multi-year battery life in always-on sensing applications, making the R5F100GHDFB#V0 especially suited for energy-constrained edge devices.

Is the R5F100GHDFB#V0 pin-compatible with other RL78/G13 variants in the same package?

Yes, the R5F100GHDFB#V0 is pin-compatible with all other 48-pin LFQFP variants in the RL78/G13 family (e.g., R5F100GJDFB#V0, R5F101GHDFB#V0), sharing identical pin configuration, electrical characteristics, and peripheral mapping. This allows direct substitution within the same footprint for memory scaling or feature optimization - a key advantage confirmed in Renesas' official pinout documentation for the R5F100GHDFB#V0 and related devices.