Renesas R5F10RJAGFA#30

Overview

R5F10RJAGFA#30 from Renesas is a 52-pin LQFP-packaged 16-bit RL78/L12 microcontroller with 32 KB flash, 2 KB data flash, 1.5 KB RAM, integrated LCD controller/driver (up to 35 seg × 8 com), and ultra-low-power operation (0.64 µA in RTC+LVD halt mode). It targets battery-powered LCD display systems such as smart meters, thermostats, and portable medical devices.

For engineers reviewing the R5F10RJAGFA#30 datasheet, R5F10RJAGFA#30 pinout, R5F10RJAGFA#30 application, or R5F10RJAGFA#30 equivalent, key selection criteria include its 24 MHz high-speed on-chip oscillator (±1% accuracy), 10-bit ADC with 10 channels, 8-channel timer array, I²C/SPI/UART interfaces, and industrial-grade −40°C to +105°C operating range.

Technical Context

The R5F10RJAGFA#30 implements the RL78 CPU core with Harvard architecture, 3-stage pipeline, and CISC instruction set delivering 31 DMIPS at 24 MHz. Its low-power design supports multiple sleep modes including Stop (0.23 µA) and Halt (0.64 µA), with snooze mode enabling peripheral wake-up without full CPU restart.

It integrates a configurable LCD controller supporting capacitor split, internal voltage boost, and resistance division methods; up to 35 segment × 8 common outputs; and 16-step contrast adjustment. The device includes safety features compliant with IEC/UL 60730, including flash CRC, RAM parity check, and illegal memory access detection.

Key Specifications

Pinout & Package

Package: 52-pin LQFP (10 × 10 mm, 0.65 mm pitch), industrial-grade (−40°C to +105°C), G-suffix.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10RJAGFA#30, R5F10RJCGFA#30 offers identical packaging and low-power performance but reduced code density, while R5F10RLAGFA#30 provides greater I/O and LCD flexibility in a larger footprint-neither is pin-compatible, requiring PCB redesign.

Availability

R5F10RJAGFA#30 is available at Aetrix Electronics and suitable for smart energy metering, industrial thermostat control, and portable medical monitoring requiring stable component supply across long production lifecycles.

Supply support for R5F10RJAGFA#30 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/L12 product line delivers true low-power MCU performance for LCD-based human interface applications, integrating display drivers, precision analog, and safety features into compact packages.

FAQ

What is the maximum operating frequency and power efficiency of the R5F10RJAGFA#30?

The R5F10RJAGFA#30 operates at up to 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS with 62.5 µA/MHz active current. In Halt mode with RTC and LVD enabled, it draws only 0.64 µA-making it ideal for battery-critical applications like utility meters and portable medical devices where R5F10RJAGFA#30's ultra-low standby power directly extends service life.

Does the R5F10RJAGFA#30 support external crystals, and what clock options are available?

Yes, the R5F10RJAGFA#30 supports external crystals on X1/X2 pins for main system clock (up to 20 MHz) and XT1/XT2 pins for subsystem clock (32.768 kHz). It also includes an internal high-speed oscillator (24 MHz ±1%) and low-speed oscillator (15 kHz), allowing flexible clock source selection without external components unless precise timing or RTC accuracy is required-critical for R5F10RJAGFA#30 deployments in time-sensitive industrial controls.

How many LCD segments and commons does the R5F10RJAGFA#30 support, and what drive methods are implemented?

The R5F10RJAGFA#30 supports up to 35 segments × 8 commons or 39 segments × 4 commons via its integrated LCD controller. It implements three drive methods: capacitor split, internal voltage boost (0.63 µA at VDD = 3.0 V), and external resistance division-enabling direct connection to diverse LCD panels without external bias ICs, a key advantage in space-constrained R5F10RJAGFA#30-based designs like handheld instruments.

What safety features does the R5F10RJAGFA#30 include for compliance with IEC/UL 60730?

The R5F10RJAGFA#30 includes hardware-level safety features required for IEC/UL 60730 Class B compliance: flash memory CRC calculation, RAM parity error detection, RAM and SFR write protection, illegal memory access detection, clock frequency monitoring, and ADC self-test. These features reduce software certification burden and ensure robust operation in R5F10RJAGFA#30-based appliances and industrial controllers where functional safety is mandated.

What are the key differences between R5F10RJAGFA#30 and R5F10RJCGFA#30?

R5F10RJAGFA#30 and R5F10RJCGFA#30 share identical 52-pin LQFP packaging, pinout, and industrial temperature range (−40°C to +105°C), but differ in flash capacity: R5F10RJAGFA#30 has 32 KB code flash versus 8 KB in R5F10RJCGFA#30. Both include 2 KB data flash and 1.5 KB RAM. This makes R5F10RJAGFA#30 suitable for complex firmware with graphics or communication stacks, while R5F10RJCGFA#30 targets cost-optimized, functionally minimal R5F10RJAGFA#30 alternatives.