Renesas R5F100LHGFB#X0

Overview

R5F100LHGFB#X0 from Renesas is a 64-pin LFQFP-packaged RL78/G13 16-bit microcontroller with 128 KB flash, 8 KB data flash, and 12 KB RAM, operating at up to 32 MHz (41 DMIPS), featuring ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode) for industrial control and sensor interface applications.

For engineers reviewing the R5F100LHGFB#X0 datasheet, R5F100LHGFB#X0 pinout, R5F100LHGFB#X0 application, or R5F100LHGFB#X0 equivalent, key selection criteria include its -40°C to +105°C industrial temperature grade (G suffix), integrated RTC with calendar/alarm, 26-channel 10-bit ADC, and dual UART/LIN support in a 10 × 10 mm 0.5-mm-pitch package.

Technical Context

The R5F100LHGFB#X0 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed oscillator) to 30.5 μs (32.768 kHz subsystem clock). It integrates on-chip debug, self-programming flash with boot swap, and background operation for data flash rewriting.

Power management includes HALT, STOP, and SNOOZE low-power modes, an on-chip POR circuit, and a 14-level voltage detector (LVD) with interrupt/reset capability. Peripheral integration covers 16× 16-bit timers, 1× real-time clock with calendar and correction, 1× watchdog timer, and 3× I²C/Simplified I²C channels.

Key Specifications

Pinout & Package

Package: 64-pin LFQFP (10 × 10 mm, 0.5-mm pitch, FB suffix), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100LHGFB#X0, R5F100LGAFB#X0 trades 32 KB flash and 4 KB RAM for lower unit cost, while R5F101LHGFB#X0 removes data flash entirely-enabling simpler qualification paths where non-volatile parameter storage is managed off-chip.

Availability

R5F100LHGFB#X0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, home appliance UIs, and PLC I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F100LHGFB#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, appliances, and sensor systems requiring robust operation from -40°C to +105°C.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F100LHGFB#X0?

The R5F100LHGFB#X0 operates at up to 32 MHz with a measured performance of 41 DMIPS. Its high-accuracy ±1.0% on-chip oscillator eliminates the need for external crystals in many timing-critical applications, and instruction execution time scales dynamically from 0.03125 μs (high-speed mode) to 30.5 μs (subsystem clock mode), enabling flexible power/performance trade-offs in the R5F100LHGFB#X0 design.

Does the R5F100LHGFB#X0 support in-system programming and secure firmware updates?

Yes, the R5F100LHGFB#X0 supports full in-system programming via its on-chip debug interface and includes flash shield window and boot swap functions. These features allow authenticated firmware updates in the field without exposing sensitive code-critical for maintaining security and reliability in deployed R5F100LHGFB#X0-based systems.

How does the R5F100LHGFB#X0 handle analog sensing in industrial environments?

The R5F100LHGFB#X0 integrates a 10-bit ADC with 26 input channels, internal 1.45 V reference voltage, and a calibrated temperature sensor. Its ADC supports differential measurements using AVREFP/AVREFM pins, enabling precise ratiometric sensing immune to supply fluctuations-making it well-suited for ruggedized R5F100LHGFB#X0 deployments in factory automation.

What low-power modes are available on the R5F100LHGFB#X0, and what is the lowest achievable current draw?

The R5F100LHGFB#X0 offers HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws just 0.57 μA-enabling decade-scale battery life in always-on monitoring applications. This ultra-low quiescent current is guaranteed across the full -40°C to +105°C industrial temperature range of the R5F100LHGFB#X0.

Is the R5F100LHGFB#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 R5F100LHGFB#X0, R5F100LGAFB#X0, and R5F101LHGFB#X0-share identical pinouts and electrical characteristics. This allows drop-in replacement during design iteration or cost optimization without PCB changes, provided peripheral usage aligns with the selected variant's memory and feature set.