Renesas R5F100PJAFA#V0

Overview

R5F100PJAFA#V0 from Renesas is a 100-pin LQFP-0.65mm, industrial-grade RL78/G13 16-bit MCU with 256 KB flash, 8 KB data flash, 20 KB RAM, and operation from -40°C to +85°C. It delivers 41 DMIPS at 32 MHz, consumes 66 μA/MHz active current, and supports RTC + LVD in 0.57 μA STOP mode for battery-powered metering and sensor nodes.

For engineers reviewing the R5F100PJAFA#V0 datasheet, R5F100PJAFA#V0 pinout, R5F100PJAFA#V0 application, or R5F100PJAFA#V0 equivalent, key selection criteria include its integrated 10-bit ADC (26 channels), dual UART/LIN support, 16-channel 16-bit timer, real-time clock with calendar, and hardware BCD correction - all within a low-power, AEC-Q100–capable platform for industrial control and home appliance HMI.

Technical Context

The R5F100PJAFA#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). It integrates a 12-bit interval timer, watchdog timer with dedicated low-speed oscillator, and background operation (BGO) for data flash rewriting while executing code from program memory.

Its peripheral set includes up to 10 I²C/Simplified I²C channels, 4 UART/LIN interfaces, 8 CSI/SPI channels, and DMA controller with 4 channels - enabling concurrent serial communication, sensor data acquisition, and real-time actuator control without CPU overhead in embedded automation systems.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 × 20 mm, 0.65-mm pitch), RoHS-compliant, industrial temperature grade (-40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100PJAFA#V0, R5F100PJGFA#V0 adds extended temperature capability without sacrificing features, while R5F101PJAFP#V0 removes data flash to lower cost - making the original ideal for applications needing robust, temperature-stable, in-field reprogrammability.

Availability

R5F100PJAFA#V0 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, home appliance control, and wireless sensor node applications requiring stable component supply across long production lifecycles.

Supply support for R5F100PJAFA#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 targets cost-sensitive, ultra-low-power general-purpose embedded applications - balancing performance, energy efficiency, and integration for appliances, meters, and industrial controls.

FAQ

What is the operating voltage range of the R5F100PJAFA#V0?

The R5F100PJAFA#V0 operates from a single supply of 1.6 V to 5.5 V, enabling direct interfacing with diverse power domains including coin-cell batteries (1.8–3.0 V), Li-ion systems (3.0–4.2 V), and standard 5 V rails - without external regulators in many cases.

Does the R5F100PJAFA#V0 support in-system programming via standard interfaces?

Yes, the R5F100PJAFA#V0 supports on-chip debug and self-programming via its built-in debug interface. It enables firmware updates through UART, CSI, or I²C using Renesas Flash Development Toolkit (FDT) or compatible host tools - no external programmer required for field upgrades.

How many UART/LIN channels does the R5F100PJAFA#V0 integrate?

The R5F100PJAFA#V0 integrates four UART channels, each supporting LIN-bus protocol. This allows simultaneous communication with multiple LIN slaves (e.g., door modules, sensors) or bridging between UART peripherals and LIN networks in automotive body electronics or industrial subsystems.

What is the maximum number of analog input channels supported by the R5F100PJAFA#V0's ADC?

The R5F100PJAFA#V0's 10-bit A/D converter supports up to 26 analog input channels. This capacity accommodates multi-sensor systems such as HVAC control boards (NTC thermistors, pressure transducers, humidity ICs) or smart meters (voltage, current, temperature, tamper detection).

Is the R5F100PJAFA#V0 pin-compatible with other RL78/G13 variants in the same package?

Yes, the R5F100PJAFA#V0 is pin-compatible with all RL78/G13 devices in the 100-pin LQFP-0.65mm package (e.g., R5F100PKAFA#V0, R5F100PLAFA#V0), sharing identical pin functions and electrical characteristics - enabling scalable memory selection without PCB redesign.