Renesas R5F2LA64ANFA#V0

Overview

R5F2LA64ANFA#V0 from Renesas Electronics is a 16-bit R8C CPU core-based microcontroller in the R8C/LA6A Group, featuring 16 KB program ROM, 2 KB RAM, and 2 KB data flash. It delivers 50 ns minimum instruction execution at 20 MHz (VCC = 2.7–5.5 V), integrates an on-chip 16×16→32-bit multiplier, and supports 56 programmable CMOS I/O ports with 8 high-current drive pins - used in appliance control panels requiring integrated LCD drive and analog sensing.

For engineers reviewing the R5F2LA64ANFA#V0 datasheet, R5F2LA64ANFA#V0 pinout, R5F2LA64ANFA#V0 application, or R5F2LA64ANFA#V0 equivalent, key selection criteria include its 64-pin LQFP-0.8 mm pitch package, 8-channel 10-bit A/D converter with temperature sensor, real-time clock (Timer RH), and LCD segment drive capability up to 32 pins - all critical for cost-sensitive, low-power consumer HMI designs.

Technical Context

The R5F2LA64ANFA#V0 implements the R8C CPU core with 89 fundamental instructions and operates in single-chip mode across a 1 Mbyte address space. Its system clock generation includes four independent circuits: XIN oscillator (up to 20 MHz), dedicated XCIN/XCOUT 32 kHz crystal interface, high-speed on-chip oscillator (frequency-adjustable), and low-speed on-chip oscillator - enabling flexible power-mode management including wait, stop, and multiple power-off states.

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 RJ (16-bit ×2 for PWM, event counting, and pulse measurement). Serial interfaces comprise UART0, SSU/I2C-bus (shared), and UART2 with multiprocessor communication support - all mapped to configurable I/O ports with interrupt priority levels up to 7.

Key Specifications

Pinout & Package

64-pin LQFP (PLQP0064GA-A) package with 0.8 mm pin pitch, exposed pad not specified, RoHS-compliant lead finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F2LA64ANFP, the R5F2LA64ANFA#V0 offers relaxed PCB assembly compatibility and identical feature set; compared with R5F2LA54ANFP, it adds 12 more I/Os, one extra A/D channel, 5 more LCD segments, Timer RJ2, and UART2 - justifying its use in upgraded appliance platforms requiring scalability.

Availability

R5F2LA64ANFA#V0 is available at Aetrix Electronics and suitable for refrigerator control panels, smart thermostat interfaces, printer status displays, and home audio keypads requiring stable component supply across multi-year production cycles.

Supply support for R5F2LA64ANFA#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, and power devices for automotive, industrial, and consumer markets.

The R8C/LA6A Group, including R5F2LA64ANFA#V0, was designed for cost-optimized, low-power human-machine interface applications in white goods and office equipment - emphasizing integrated LCD drive, analog sensing, and real-time clock functionality.

FAQ

What is the maximum operating frequency of the R5F2LA64ANFA#V0?

The R5F2LA64ANFA#V0 supports a maximum operating frequency of 20 MHz when powered at VCC = 2.7–5.5 V, achieving a minimum instruction execution time of 50 ns. At lower supply voltages (1.8–5.5 V), the maximum frequency is reduced to 8 MHz for guaranteed operation - verified in the R01DS0011EJ0101 datasheet Section 1.1.3.

Does the R5F2LA64ANFA#V0 include an integrated temperature sensor?

Yes, the R5F2LA64ANFA#V0 includes an on-chip temperature sensor with a measurement range of −20°C to +85°C (N version), supporting direct ADC conversion without external components. This sensor is explicitly listed in Table 1.7 under A/D Converter specifications and used in conjunction with the 10-bit, 8-channel ADC.

What LCD configurations does the R5F2LA64ANFA#V0 support?

The R5F2LA64ANFA#V0 supports LCD drive with up to 4 common outputs and 32 segment outputs, configurable for static, 1/2, 1/3, or 1/4 duty operation and 1/2 or 1/3 bias. These capabilities are confirmed in Table 1.8 and Figure 1.7 (block diagram), enabling direct drive of alphanumeric and custom segment displays.

Is the R5F2LA64ANFA#V0 pin-compatible with other R8C/LA6A Group MCUs?

Yes, all R8C/LA6A Group MCUs in the PLQP0064GA-A package - including R5F2LA64ANFA, R5F2LA66ANFA, and R5F2LA68ANFA - share identical pinouts and electrical characteristics. Memory size and feature enablement (e.g., data flash block count) differ, but PCB layout remains unchanged across this FA-package variant family.

What debug and programming interfaces are supported by the R5F2LA64ANFA#V0?

The R5F2LA64ANFA#V0 supports on-chip debugging via the single-wire debug interface (SWD) and includes ROM code protection and ID code check features. Flash programming is performed through the on-board flash rewrite function using standard Renesas E1/E20 emulators - documented in Section 1.1.3 and the "On-chip debug function" specification.