Renesas R5F2LA66ADFP#30

Overview

R5F2LA66ADFP#30 from Renesas Electronics is a 16-bit R8C CPU core-based microcontroller in the R8C/LA6A Group, featuring 32 KB program flash, 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-bit multiplier, and supports LCD drive (max. 32 segment pins) for embedded control in cost-sensitive appliance interfaces.

For engineers reviewing the R5F2LA66ADFP#30 datasheet, R5F2LA66ADFP#30 pinout, R5F2LA66ADFP#30 application, or R5F2LA66ADFP#30 equivalent, key selection criteria include its −40 to +85°C D-version operating range, 56-pin LQFP (PLQP0064KB-A) package with 56 programmable I/O ports, and integrated peripherals including 8-channel 10-bit ADC, dual 16-bit timers (RJ0/RJ1), UART0, and real-time clock (Timer RH).

Technical Context

The R5F2LA66ADFP#30 implements the R8C CPU core with 89 fundamental instructions and a dedicated hardware multiplier supporting 16×16→32-bit multiply and multiply-accumulate operations. Its memory subsystem includes 32 KB of program ROM, 2 KB of RAM, and 2 KB of data flash with 10,000-cycle endurance and on-chip debug capability.

Peripherals are tightly coupled to the CPU via internal bus architecture: Timer RC provides 4 capture/compare registers and PWM output on 3 pins; Timer RH operates as a real-time clock with calendar functionality; and the A/D converter features sample-and-hold, sweep mode, and integrated temperature sensor (−40 to +85°C range).

Key Specifications

Pinout & Package

Package: 64-pin LQFP (PLQP0064KB-A), 0.5 mm pitch, exposed pad not specified, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F2LA66ADFP#30, the R5F2LA66ANFP offers identical functionality at lower cost for non-industrial environments, while R5F2LA68ADFP provides double the program memory within the same footprint-enabling scalable firmware development without PCB redesign.

Availability

R5F2LA66ADFP#30 is available at Aetrix Electronics and suitable for refrigerator control panels, industrial HMIs, smart thermostats, and power supply monitors requiring stable component supply and long-term industrial-grade availability.

Supply support for R5F2LA66ADFP#30 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 solutions for automotive, industrial, and IoT markets.

The R8C/LA6A Group, including R5F2LA66ADFP#30, was designed for cost-optimized, low-power embedded control in white goods and human-machine interfaces-emphasizing integrated LCD driving, robust analog sensing, and extended temperature operation.

FAQ

What is the maximum operating frequency and corresponding supply voltage range for R5F2LA66ADFP#30?

The R5F2LA66ADFP#30 supports a maximum operating frequency of 20 MHz at VCC = 2.7–5.5 V. At lower supply voltages (1.8–5.5 V), the maximum frequency is reduced to 8 MHz to maintain timing margins and stability across the full industrial temperature range (−40°C to +85°C).

Does R5F2LA66ADFP#30 include an integrated temperature sensor, and what is its accuracy range?

Yes, R5F2LA66ADFP#30 includes an on-die temperature sensor with a specified measurement range of −40°C to +85°C (D version). The sensor is factory-calibrated and used in conjunction with the 10-bit ADC; absolute accuracy is not specified in the datasheet, but it enables relative thermal trending and threshold-based control without external components.

What LCD display configurations does R5F2LA66ADFP#30 support, and how many segment pins are available?

R5F2LA66ADFP#30 supports LCD bias of 1/2 or 1/3 and duty cycles of static, 1/2, 1/3, or 1/4. It provides up to 4 common output pins and 32 segment output pins-enabling direct drive of multiplexed character or graphical displays commonly used in appliance control panels and instrumentation.

How many analog input channels does the A/D converter in R5F2LA66ADFP#30 support, and what features does it include?

The A/D converter in R5F2LA66ADFP#30 supports 8 single-ended analog input channels with 10-bit resolution. It includes sample-and-hold circuitry, automatic channel sweep mode, and integration with the on-chip temperature sensor-allowing simultaneous acquisition of multiple sensor signals with minimal CPU overhead.

Is R5F2LA66ADFP#30 pin-compatible with other members of the R8C/LA6A Group, such as R5F2LA68ADFP?

Yes, R5F2LA66ADFP#30 is pin-compatible with all 64-pin LQFP variants in the R8C/LA6A Group, including R5F2LA68ADFP and R5F2LA64ADFP. They share identical PLQP0064KB-A package dimensions, pin assignments, and peripheral mapping-enabling memory-size scalability without layout changes.