Renesas R5F2LA86ANFA#V0

Overview

R5F2LA86ANFA#V0 from Renesas is an 80-pin LQFP (0.65 mm pitch) 16-bit R8C/LA8A Group MCU with 32 KB program flash, 2 KB RAM, 2 KB data flash, 72 programmable I/O ports, 12-channel 10-bit A/D converter, and integrated LCD drive (40 segment outputs). It features R8C CPU core with 16×16→32-bit multiplier, real-time clock (Timer RH), three 16-bit Timer RJ units, UART0/UART2, I²C/SSU, and operates from 1.8–5.5 V across −20 to +85°C ambient.

For engineers reviewing the R5F2LA86ANFA#V0 datasheet, R5F2LA86ANFA#V0 pinout, R5F2LA86ANFA#V0 application, or R5F2LA86ANFA#V0 equivalent, key selection criteria include its 80-pin LQFP package with dedicated XCIN/XCOUT for 32 kHz crystal, 10 µA typical stop-mode current, on-chip debug support, and full compatibility with Renesas E1/E20 emulators for embedded appliance control development.

Technical Context

The R5F2LA86ANFA#V0 implements the R8C CPU core with 89 fundamental instructions and supports single-chip operation over a 1 Mbyte address space. Its clock system integrates four independent sources: XIN oscillator (up to 20 MHz), dedicated XCIN/XCOUT 32 kHz crystal circuit, high-speed on-chip oscillator (with frequency adjustment), and low-speed on-chip oscillator - all selectable via software-controlled frequency dividers (1/2/4/8/16).

Peripheral integration includes Timer RB (8-bit ×2), Timer RC (16-bit ×1 with 4 capture/compare registers), Timer RH (real-time clock with calendar function), and Timer RJ0–RJ2 (16-bit ×3 for PWM, event counting, and pulse measurement). The MCU also embeds UART0, UART2 (with I²C mode), SSU, 12-channel 10-bit A/D with temperature sensor, dual comparator B, and LCD drive supporting static/1/2/1/3/1/4 duty and 1/2–1/3 bias.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (PLQP0080JA-A), 0.65 mm pin pitch, body size 12 mm × 12 mm, exposed pad not present. Pinout validated per Renesas R01DS0011EJ0101 Rev.1.01 Figures 1.12 and Table 1.17 (R8C/LA8A Group).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit MCU applications.

Compared with R5F2LA86ANFP, R5F2LA86ANFA#V0 eases manufacturing with 0.65 mm pitch and improves thermal dissipation; versus R5F2LA66ANFA, it delivers 16 additional I/O pins, 4 more ADC channels, 8 extra LCD segments, and full UART2/I²C functionality - justifying its use in feature-rich, display-intensive appliances.

Availability

R5F2LA86ANFA#V0 is available at Aetrix Electronics and suitable for microwave oven control, refrigerator display panels, smart air purifier UIs, and office copier keypad interfaces requiring stable component supply and long-term industrial availability.

Supply support for R5F2LA86ANFA#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The R8C/LA8A Group, including R5F2LA86ANFA#V0, was designed for cost-sensitive, display-driven consumer appliances requiring integrated LCD control, precise RTC, low-power operation, and robust analog sensing - targeting household and office equipment manufacturers.

FAQ

What is the maximum operating frequency and voltage range supported by the R5F2LA86ANFA#V0?

The R5F2LA86ANFA#V0 supports a maximum operating frequency of 20 MHz when supplied at 2.7–5.5 V, and 8 MHz at the extended low-voltage range of 1.8–5.5 V. This dual-frequency capability enables flexible power/performance trade-offs: full-speed operation for compute-intensive tasks, or reduced clocking for battery-powered standby modes while maintaining full peripheral functionality.

Does the R5F2LA86ANFA#V0 include an on-chip debug interface, and which tools are compatible?

Yes, the R5F2LA86ANFA#V0 includes an on-chip debug function compliant with Renesas E1 and E20 emulator standards. It supports full break-point debugging, real-time variable watch, and flash programming via the on-chip debug interface using standard Renesas CS+ or e2 studio IDEs - no external JTAG adapter required beyond the E1/E20 hardware debugger.

How many LCD segments can the R5F2LA86ANFA#V0 drive, and what bias/duty configurations are supported?

The R5F2LA86ANFA#V0 drives up to 40 segment outputs and 4 common outputs, enabling up to 160-segment displays. It supports LCD bias settings of 1/2 or 1/3, and duty cycles of static, 1/2, 1/3, or 1/4 - configured via LSE0/LSE2/LSE5 registers. VL1/VL2/VL3 pins require external resistor networks to generate appropriate bias voltages for selected configuration.

What are the key differences between the R5F2LA86ANFA#V0 and the R5F2LA66ANFA in terms of peripheral capabilities?

The R5F2LA86ANFA#V0 adds Timer RJ2 (third 16-bit timer), UART2 with I²C-bus mode, 4 additional ADC channels (12 vs. 8), 8 extra LCD segments (40 vs. 32), and 16 more I/O pins (72 vs. 56) compared to the R5F2LA66ANFA. These enhancements enable more complex timing, dual-serial communication, richer HMI, and expanded sensor interfacing in high-feature appliances.

Is the R5F2LA86ANFA#V0 qualified for industrial temperature operation, and what is its specified ambient range?

The R5F2LA86ANFA#V0 is the N-version part, rated for an operating ambient temperature range of −20°C to +85°C. For extended industrial operation down to −40°C, the D-version part R5F2LA86ADFA is available - identical in all electrical and functional specifications except temperature grade and part number suffix.