Renesas R5F2LA8CANFA#V0

Overview

R5F2LA8CANFA#V0 from Renesas is an 80-pin LQFP (0.65 mm pitch) 16-bit R8C CPU core MCU with 128 KB program flash, 4 KB data flash, 5.5 KB RAM, 12-channel 10-bit A/D converter, dual UART/I²C/SSU serial interfaces, and integrated LCD drive (40-segment). It operates from 1.8–5.5 V, supports −40 to +85°C (D version), and targets embedded control in appliance HMI and industrial sensor nodes.

For engineers reviewing the R5F2LA8CANFA#V0 datasheet, R5F2LA8CANFA#V0 pinout, R5F2LA8CANFA#V0 application, or R5F2LA8CANFA#V0 equivalent, key selection criteria include its 72 programmable I/O ports, Timer RJ×3 (16-bit ×3), real-time clock (Timer RH), high-current drive capability (10 pins), and on-chip debug support for rapid firmware validation in resource-constrained designs.

Technical Context

The R5F2LA8CANFA#V0 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. It executes at 50 ns min instruction time (20 MHz XIN, 2.7–5.5 V) and integrates four independent clock sources: XIN/XOUT (up to 20 MHz), dedicated XCIN/XCOUT (32 kHz), high-speed on-chip oscillator (with frequency adjustment), and low-speed on-chip oscillator.

Peripheral integration includes three timer groups-Timer RB (8-bit ×2), Timer RC (16-bit ×1 with 4 capture/compare registers), Timer RH (real-time clock with calendar mode), and Timer RJ (16-bit ×3 with pulse width/period measurement and event counting)-plus dual UART channels (UART0 and UART2), I²C-bus/SSU shared interface, and a 12-channel A/D converter with sample-and-hold and temperature sensor.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (PLQP0080JA-A, 0.65 mm pin pitch), RoHS-compliant, surface-mount, thermal pad optional.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F2LA8CADFA, the R5F2LA8CANFA#V0 offers guaranteed operation down to −40°C and matches all electrical/peripheral specs. Against R5F2LA6CADFA, it delivers 16 additional I/O pins and 8 extra LCD segments - critical for next-generation appliance HMIs requiring richer display content and more sensor/actuator connections.

Availability

R5F2LA8CANFA#V0 is available at Aetrix Electronics and suitable for home appliance control panels, industrial sensor nodes, smart thermostat interfaces, and POS terminal keypad controllers requiring stable component supply across long production lifecycles.

Supply support for R5F2LA8CANFA#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 R8C/LA8A Group, including R5F2LA8CANFA#V0, was designed for cost-sensitive, low-power embedded control applications demanding rich peripheral integration - especially where LCD-driven human-machine interfaces and robust real-time sensing coexist in compact form factors.

FAQ

What is the maximum operating frequency and supply voltage range for the R5F2LA8CANFA#V0?

The R5F2LA8CANFA#V0 supports a maximum operating frequency of 20 MHz using the XIN clock source at VCC = 2.7–5.5 V, and 8 MHz at VCC = 1.8–5.5 V. Its wide 1.8–5.5 V supply range allows direct interfacing with both 3.3 V and 5 V legacy systems without level-shifting circuitry, simplifying design reuse across product generations.

Does the R5F2LA8CANFA#V0 include an integrated temperature sensor, and what is its accuracy?

Yes, the R5F2LA8CANFA#V0 includes an on-die temperature sensor with a measurement range of −40 to +85°C (matching its D-version rating) and typical accuracy of ±2°C. This sensor is accessible via dedicated A/D channel AN6 and eliminates the need for external thermal monitoring components in applications like smart thermostats or motor overtemperature protection.

How many UART interfaces does the R5F2LA8CANFA#V0 support, and are they independently configurable?

The R5F2LA8CANFA#V0 supports two independent UART interfaces: UART0 and UART2. UART0 is fixed-function, while UART2 supports additional modes including I²C-bus and multiprocessor communication. Both operate asynchronously and can be configured with separate baud rates, parity, and stop bits - enabling concurrent communication with host MCUs and I²C sensors without software arbitration.

What LCD configuration options does the R5F2LA8CANFA#V0 support, and how many segments can it drive?

The R5F2LA8CANFA#V0 supports static, 1/2, 1/3, and 1/4 duty LCD drive with 1/2 or 1/3 bias, and can drive up to 40 segment outputs and 4 common outputs. This enables alphanumeric displays up to 10 digits × 4 lines or custom icons, all managed by dedicated hardware without CPU intervention - freeing bandwidth for real-time control tasks in appliance HMIs.

Is on-chip debug functionality available for the R5F2LA8CANFA#V0, and what interface does it use?

Yes, the R5F2LA8CANFA#V0 includes full on-chip debug functionality accessible via the single-wire background debug interface (BDI). This allows non-intrusive breakpoints, register inspection, and flash programming during development - eliminating the need for external emulators and accelerating firmware bring-up for production-grade appliance and industrial control firmware.