Renesas R5F10RLAGFA#10

Overview

R5F10RLAGFA#10 from Renesas is a 64-pin LQFP (12 × 12 mm, 0.65 mm pitch) 16-bit RL78/L12 microcontroller with 32 KB flash, 2 KB data flash, 1.5 KB RAM, integrated LCD controller/driver (up to 39 seg × 4 com), and ultra-low-power operation (0.64 µA in RTC+LVD mode). It delivers 31 DMIPS at 24 MHz and targets battery-powered LCD display applications such as smart meters and industrial HMI panels.

For engineers reviewing the R5F10RLAGFA#10 datasheet, R5F10RLAGFA#10 pinout, R5F10RLAGFA#10 application, or R5F10RLAGFA#10 equivalent, key selection criteria include its industrial-grade temperature range (−40°C to +105°C), on-chip LCD drive capability, 10-bit ADC with internal reference, and support for snooze mode with peripheral wake-up - all critical for energy-constrained embedded displays.

Technical Context

The R5F10RLAGFA#10 implements the RL78 CPU core with Harvard architecture, 3-stage pipeline, and CISC instruction set enabling 86% of instructions in 1–2 clock cycles. Its high-speed on-chip oscillator achieves ±1% accuracy across 1.8–5.5 V and −20°C to 85°C, eliminating external crystal dependency for main clocking.

It integrates a full-featured LCD controller supporting capacitor split, internal boost, and resistance division methods, with programmable contrast (16 steps), blinking, and waveform A/B selection. The real-time clock includes calendar, alarm, and watch correction functions - all retained in low-power halt mode with only RTC and LVD active.

Key Specifications

Pinout & Package

Package: 64-pin plastic LQFP (12 × 12 mm, 0.65 mm pitch), RoHS-compliant, industrial temperature 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 R5F10RLCGFA#10, the R5F10RLAGFA#10 provides double flash capacity for complex UI logic or field-upgradable firmware, while retaining identical low-power behavior and LCD functionality; versus RL78/G13, it trades flash size and max frequency for integrated LCD drive and lower system-level power consumption in display-centric designs.

Availability

R5F10RLAGFA#10 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, portable medical devices, and home appliance control requiring stable component supply across long production lifecycles.

Supply support for R5F10RLAGFA#10 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 is engineered specifically for ultra-low-power LCD-based applications, integrating optimized peripherals - including LCD controller, RTC, and low-leakage I/O - to minimize external components and extend battery life.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F10RLAGFA#10?

The R5F10RLAGFA#10 operates at a maximum frequency of 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS performance. This metric is measured under standard conditions (VDD = 3.0 V, TA = 25°C) and reflects real-world throughput for mixed-code workloads, not synthetic benchmarks. The R5F10RLAGFA#10 maintains this performance across its full 1.6–5.5 V supply range.

Does the R5F10RLAGFA#10 support external crystal oscillators, and what are the valid frequency ranges?

Yes, the R5F10RLAGFA#10 supports external crystal oscillation via X1 and X2 pins for the main system clock. Valid frequencies are 1–20 MHz at VDD = 2.7–5.5 V, 1–16 MHz at VDD = 2.4–5.5 V, 1–8 MHz at VDD = 1.8–5.5 V, and 1–4 MHz at VDD = 1.6–5.5 V. The R5F10RLAGFA#10 also supports external clock input on EXCLK pin for synchronous system timing.

How many LCD segments and commons does the R5F10RLAGFA#10 support, and what drive methods are available?

The R5F10RLAGFA#10 supports up to 39 segment outputs (SEG0–SEG38) and 8 common outputs (COM0–COM7), enabling configurations up to 39 seg × 4 com or 35 seg × 8 com. It supports three LCD drive methods: capacitor split (0.12 µA), internal voltage boost (0.63 µA @ 3.0 V), and external resistance division - all selectable via control registers in the R5F10RLAGFA#10.

What safety features does the R5F10RLAGFA#10 include for compliance with IEC/UL 60730?

The R5F10RLAGFA#10 includes flash memory CRC calculation, RAM parity error detection, RAM write protection, SFR write protection, illegal memory access detection, clock frequency monitoring, and ADC self-test - all implemented in hardware to meet Class B requirements of IEC/UL 60730. These features are enabled and configured via dedicated control registers in the R5F10RLAGFA#10 without software overhead.

Can the R5F10RLAGFA#10 operate from a single 1.6 V supply, and what peripherals remain functional at that voltage?

Yes, the R5F10RLAGFA#10 is fully specified for 1.6 V operation. At this minimum voltage, the 16-bit CPU core, 32 KB flash, 2 KB data flash, 1.5 KB RAM, 10-bit ADC (with internal 1.45 V reference), RTC, interval timer, watchdog timer, and LCD controller (capacitor split method) all remain functional. The high-speed on-chip oscillator operates down to 4 MHz at 1.6 V, ensuring reliable execution in ultra-low-voltage scenarios for the R5F10RLAGFA#10.