Renesas R5F100LHDFB#X0

Overview

R5F100LHDFB#X0 from Renesas is a 64-pin LFQFP-0.5mm-pitch 16-bit RL78/G13 microcontroller with 128 KB flash, 8 KB data flash, 12 KB RAM, 32 MHz max CPU speed (41 DMIPS), and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode) for industrial control, sensor nodes, and battery-powered HMI applications.

For engineers reviewing the R5F100LHDFB#X0 datasheet, R5F100LHDFB#X0 pinout, R5F100LHDFB#X0 application, or R5F100LHDFB#X0 equivalent, key selection criteria include its integrated 10-bit 26-channel ADC, real-time clock with calendar/alarm, hardware UART/SPI/I²C interfaces, and support for SNOOZE mode for low-latency wake-up from deep sleep - critical for energy-constrained embedded designs.

Technical Context

The R5F100LHDFB#X0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling instruction execution times from 0.03125 μs (32 MHz HS mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates a high-accuracy ±1.0% on-chip oscillator (1–32 MHz selectable) and supports HALT/STOP/SNOOZE low-power modes with fast wake-up.

Its peripheral set includes up to 16× 16-bit timers, 1× 12-bit interval timer, 1× RTC with calendar and clock correction, 1× watchdog timer, 2–4-channel DMA, and 3–10-channel I²C/SPI/UART interfaces - all configurable via register-based control without external timing components.

Key Specifications

Pinout & Package

Package: 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, industrial-grade (−40°C to +105°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100LHDFB#X0, R5F100LJDFB#X0 provides scalable flash/RAM for evolving firmware, while R5F100LGDFB#X0 reduces cost by trimming RAM - both retain identical pinout, peripherals, and low-power behavior, enabling layout reuse.

Availability

R5F100LHDFB#X0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, human-machine interface panels, home appliance mainboards, and battery-powered telemetry requiring stable component supply across long production lifecycles.

Supply support for R5F100LHDFB#X0 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 family delivers true low-power performance for general-purpose embedded applications, targeting cost-sensitive industrial controls, sensor systems, and consumer appliances needing robust integration and long-term supply stability.

FAQ

What is the operating temperature range for the R5F100LHDFB#X0?

The R5F100LHDFB#X0 is rated for industrial operation from −40°C to +105°C (G-grade), making it suitable for under-hood automotive modules, factory-floor controllers, and outdoor sensor enclosures where ambient thermal stress exceeds consumer-grade limits.

Does the R5F100LHDFB#X0 support in-system programming via standard interfaces?

Yes, the R5F100LHDFB#X0 supports in-system programming using the on-chip debug interface via dedicated TOOLRxD/TOOLTxD pins. It also enables self-programming of code and data flash memory with boot swap and flash shield window protection - no external programmer required for field firmware updates.

How many UART channels does the R5F100LHDFB#X0 include, and do they support LIN bus?

The R5F100LHDFB#X0 includes four UART channels, all of which support LIN bus physical layer compliance (LIN 2.2A/B). Each UART can operate as master or slave, with automatic sync-break detection and checksum generation - essential for automotive body electronics and distributed sensor networks.

Can the R5F100LHDFB#X0's ADC measure internal temperature and reference voltage simultaneously?

Yes, the R5F100LHDFB#X0's 10-bit ADC supports simultaneous measurement of the internal temperature sensor and internal 1.45 V reference voltage (when configured in HS mode), enabling real-time die temperature compensation and supply voltage monitoring without external components.

Is the R5F100LHDFB#X0 pin-compatible with other RL78/G13 variants in the same package?

Yes, all RL78/G13 devices in the 64-pin LFQFP (FB) package - including R5F100LHDFB#X0, R5F100LJDFB#X0, and R5F100LGDFB#X0 - share identical pinouts and electrical characteristics, allowing drop-in replacement within the same memory/peripheral configuration constraints.