Renesas R5F100LHDFB#V0

Overview

R5F100LHDFB#V0 from Renesas is a 64-pin LFQFP (10 × 10 mm, 0.5-mm pitch), 128 KB flash, 8 KB data flash, 12 KB RAM RL78/G13 16-bit microcontroller operating from 1.6–5.5 V, delivering 41 DMIPS at 32 MHz with ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD mode), used in battery-powered industrial sensors and smart metering interfaces.

For engineers reviewing the R5F100LHDFB#V0 datasheet, R5F100LHDFB#V0 pinout, R5F100LHDFB#V0 application, or R5F100LHDFB#V0 equivalent, key selection criteria include its integrated RTC with calendar/alarm, 26-channel 10-bit ADC with internal temperature sensor, dual UART/LIN support, and hardware DMA for low-CPU-overhead peripheral handling in resource-constrained embedded systems.

Technical Context

The R5F100LHDFB#V0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting configurable instruction execution time from 0.03125 μs (32 MHz high-speed oscillator) to 30.5 μs (32.768 kHz subsystem clock). It integrates a 12-bit interval timer, real-time clock with 99-year calendar and clock correction, and watchdog timer with dedicated low-speed on-chip oscillator.

Its peripheral set includes up to 16 channels of 16-bit timer, 3–10 I²C/Simplified I²C channels, 2–4 UART/LIN interfaces, 2–8 CSI (SPI-compatible) channels, and an 8/10-bit A/D converter with 6–26 analog inputs - all mapped to its 64-pin LFQFP package with mixed-signal I/O capability including N-ch open-drain ports and different-potential interface support.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100LHDFB#V0, R5F101LHDFB#V0 removes data flash to lower cost and simplify programming, while R5F100LJDFB#V0 increases flash and RAM capacity without altering I/O or timing behavior-making both viable alternatives depending on memory and data persistence requirements.

Availability

R5F100LHDFB#V0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply across long product lifecycles.

Supply support for R5F100LHDFB#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 family is designed for cost-sensitive, ultra-low-power general-purpose embedded applications-emphasizing energy efficiency, integrated analog peripherals, and seamless toolchain support for rapid development of battery-operated and industrial control systems.

FAQ

What is the maximum operating frequency and performance of the R5F100LHDFB#V0?

The R5F100LHDFB#V0 operates at up to 32 MHz with the high-speed on-chip oscillator, delivering 41 DMIPS of processing performance. Its RL78 CPU core features a 3-stage pipeline and supports configurable instruction execution times-from 0.03125 μs at full speed to 30.5 μs in ultra-low-speed mode using the 32.768 kHz subsystem clock. This flexibility allows dynamic power/performance scaling in the R5F100LHDFB#V0 without external clock sources.

Does the R5F100LHDFB#V0 support hardware debugging and in-system programming?

Yes, the R5F100LHDFB#V0 includes a full on-chip debug interface compliant with Renesas E2 emulator standards, enabling real-time breakpoints, watchpoints, and memory inspection. It also supports self-programming of both code and data flash memory-including boot swap functionality and flash shield window protection-allowing secure field firmware updates without external programmers. These capabilities are fully implemented in the R5F100LHDFB#V0 silicon.

What analog features does the R5F100LHDFB#V0 provide for sensor interfacing?

The R5F100LHDFB#V0 integrates a 10-bit A/D converter with up to 26 input channels, selectable internal reference voltage (1.45 V), and an on-die temperature sensor usable in HS mode. It supports simultaneous sampling across multiple channels and includes built-in BCD correction. These analog resources are directly accessible in the R5F100LHDFB#V0's 64-pin LFQFP package, enabling compact, high-accuracy sensor front ends without external signal conditioning.

How does the R5F100LHDFB#V0 achieve ultra-low power consumption in standby modes?

The R5F100LHDFB#V0 achieves 0.57 μA in STOP mode by retaining only RTC and LVD circuitry while shutting down the CPU, flash, and most peripherals. Its HALT and SNOOZE modes further optimize active power down to 66 μA/MHz. The on-chip voltage detector (LVD) offers 14 programmable threshold levels for brown-out detection, and the RTC maintains calendar accuracy with automatic clock correction-key design attributes embedded in the R5F100LHDFB#V0 for battery longevity.

Is the R5F100LHDFB#V0 pin-compatible with other RL78/G13 variants in the same package?

Yes, the R5F100LHDFB#V0 is pin-compatible with all other 64-pin LFQFP RL78/G13 devices sharing the FB suffix and #V0 tray packaging-including R5F100LJDFB#V0, R5F100LLDFB#V0, and R5F101LHDFB#V0. Pin functions, power domains, and I/O electrical characteristics are identical across this package group, enabling hardware reuse and migration paths within the RL78/G13 family without PCB redesign for the R5F100LHDFB#V0.