Renesas R5F10WLCAFA#10

Overview

R5F10WLCAFA#10 from Renesas is a 64-pin LQFP (12 × 12 mm, 0.65 mm pitch), 32 KB flash, 4 KB data flash, 1 KB RAM RL78/L13 16-bit microcontroller with integrated LCD controller/driver (36 segment / 4 common), 9-channel 8/10-bit ADC, and ultra-low power operation down to 71 μA/MHz - designed for battery-powered LCD display systems in consumer electronics.

For engineers reviewing the R5F10WLCAFA#10 datasheet, R5F10WLCAFA#10 pinout, R5F10WLCAFA#10 application, or R5F10WLCAFA#10 equivalent, this page delivers verified technical context, validated pin functions, real-world use cases in LCD metering and portable HMI, and two confirmed alternative parts with documented functional and packaging differences.

Technical Context

The R5F10WLCAFA#10 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction execution time (0.04167 µs @ 24 MHz high-speed on-chip oscillator or 30.5 µs @ 32.768 kHz subsystem clock). It integrates a dedicated LCD controller supporting internal voltage boosting, capacitor split, or external resistor division methods.

Its peripheral set includes 8-channel 16-bit Timer Array Unit (TAU) with PWM output, 1-channel 16-bit timer KB20, RTC2 with calendar and alarm, 2-channel comparator with selectable reference, and serial interfaces: 1 CSI, 1 UART (LIN-capable), and 1 simplified I²C - all mapped to fixed and software-reconfigurable pins via PIOR registers.

Key Specifications

Pinout & Package

64-pin plastic LQFP (12 × 12 mm, 0.65 mm pitch), lead-free, moisture-sensitive level 3. REGC must be connected to VSS via 0.47–1 μF capacitor.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10WLCAFA#10, R5F10WLEAFA#10 offers double flash capacity without changing footprint or power profile, while R5F10WMCAFA#10 trades pin count for expanded analog and serial resources - both retain identical LCD driver architecture and ultra-low-power modes.

Availability

R5F10WLCAFA#10 is available at Aetrix Electronics and suitable for smart meter displays, portable medical devices, and home appliance control panels requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for R5F10WLCAFA#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/L13 product line targets ultra-low-power LCD-based applications, combining true low-power design (71 μA/MHz), integrated display drivers, and robust peripheral sets for cost-sensitive consumer and industrial HMI systems.

FAQ

What is the maximum operating frequency and corresponding power consumption of the R5F10WLCAFA#10?

The R5F10WLCAFA#10 operates up to 24 MHz using its high-speed on-chip oscillator with ±1.0% accuracy across 1.8–5.5 V. At 24 MHz and 3.3 V, typical active current is 1.704 mA (71 μA/MHz × 24 MHz), verified per R01DS0168EJ0232 Rev.2.32 Section 2.1. This enables responsive UI updates while maintaining sub-2 mA peak draw in LCD-driven systems.

Does the R5F10WLCAFA#10 support hardware LCD bias generation without external components?

Yes, the R5F10WLCAFA#10 integrates full LCD bias generation with three configurable methods: internal voltage boosting (for 3.3 V/5 V supplies), capacitor split (for 1.8 V operation), and external resistance division. No external charge pumps or resistors are required when using internal boost - confirmed in Section 1.1 "LCD controller/driver" and Figure 1-11 of R01DS0168EJ0232.

How many independent PWM outputs can the R5F10WLCAFA#10 generate simultaneously?

The R5F10WLCAFA#10 supports up to 7 independent PWM outputs using its 8-channel Timer Array Unit (TAU), plus 1 additional PWM channel from the dedicated 16-bit timer KB20 - totaling 8 PWM signals. Channel mapping and dead-time insertion are configurable per R01DS0168EJ0232 Section 6.9.3, enabling motor control or LED dimming alongside LCD driving.

Is the R5F10WLCAFA#10 pin-compatible with other RL78/L13 variants in the same package?

Yes, all 64-pin RL78/L13 variants - including R5F10WLAAFA#10, R5F10WLCAFA#10, R5F10WLDAFA#10, and R5F10WLEAFA#10 - share identical pinouts, electrical characteristics, and peripheral mappings per R01DS0168EJ0232 Table 1-1 and Figure 1-1. Only flash/RAM sizes and temperature grades differ, enabling seamless firmware scalability.

What debug and programming interfaces does the R5F10WLCAFA#10 support?

The R5F10WLCAFA#10 supports on-chip debugging via the TOOLRxD/TOOLTxD pins (P17/P00) using Renesas E2 emulator or E2 Lite. It also enables self-programming through the on-chip debug interface with boot swap functionality and flash shield window protection - fully documented in Chapter 3 of the RL78/L13 User's Manual and R01DS0168EJ0232 Section 1.1.