Renesas R5F2LA87ANFP#U0

Overview

R5F2LA87ANFP#U0 from Renesas is an 80-pin LQFP 16-bit R8C/LA8A Group MCU with 48 KB program flash, 3.5 KB RAM, 12-channel 10-bit ADC, 40-segment LCD driver, and integrated Timer RJ0–RJ2 for precision timing in appliance control panels. It operates from 1.8 V to 5.5 V, supports real-time clock (Timer RH), and delivers 50 ns min instruction execution at 20 MHz.

For engineers reviewing the R5F2LA87ANFP#U0 datasheet, R5F2LA87ANFP#U0 pinout, R5F2LA87ANFP#U0 application, or R5F2LA87ANFP#U0 equivalent, key selection criteria include its 72 programmable I/O ports, dual UART/I²C/SSU serial interfaces, high-current drive capability (10 pins), low-power stop mode (0.5 µA), and N-version −20 to 85°C operating range.

Technical Context

The R5F2LA87ANFP#U0 implements the R8C CPU core with 89 fundamental instructions and a dedicated 16×16→32-bit multiplier for efficient signal processing. Its system clock generation includes four independent circuits: XIN (20 MHz max), XCIN (32 kHz), high-speed on-chip oscillator (with frequency adjustment), and low-speed on-chip oscillator - enabling flexible power/performance trade-offs across wait, stop, and power-off modes.

Peripheral integration centers on mixed-signal control: Timer RH provides calendar-based real-time clock functionality with output compare; Timer RJ0–RJ2 support pulse width/period measurement and event counting; and the 12-channel ADC includes sample-and-hold and internal temperature sensor (−20 to 85°C). The LCD controller drives up to 40 segments with static/1/2/1/3/1/4 duty and 1/2 or 1/3 bias.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (PLQP0080KB-A), 0.5 mm pitch, 12 × 12 mm body size, exposed pad not specified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F2LA86ANFP and R5F2LA88ANFP, the R5F2LA87ANFP#U0 offers optimal balance: sufficient 48 KB flash for mid-complexity appliance firmware while preserving 16 KB margin for field updates, all within identical pinout and power/performance envelope.

Availability

R5F2LA87ANFP#U0 is available at Aetrix Electronics and suitable for appliance control panels, smart thermostats, industrial HMIs, and consumer audio front panels requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.

Supply support for R5F2LA87ANFP#U0 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, and power management ICs for industrial, automotive, and IoT applications.

The R8C/LA8A Group targets cost-sensitive, low-power embedded systems requiring integrated LCD driving, rich analog interfaces, and robust real-time control - optimized for white goods, building automation, and portable instrumentation.

FAQ

What is the maximum operating frequency and supply voltage range for the R5F2LA87ANFP#U0?

The R5F2LA87ANFP#U0 supports a maximum operating frequency of 20 MHz when supplied at 2.7–5.5 V, and 8 MHz at 1.8–5.5 V. Its wide voltage range enables direct integration into both 3.3 V and 5 V systems without level-shifting, and the on-chip voltage detection circuit ensures safe operation during brownout conditions.

Does the R5F2LA87ANFP#U0 include an integrated temperature sensor?

Yes, the R5F2LA87ANFP#U0 includes an on-chip temperature sensor with a measurement range of −20 to 85°C (N version), calibrated for use with the 10-bit ADC. This eliminates the need for external thermal sensing components in applications like thermostat control or motor temperature monitoring.

How many LCD segments can the R5F2LA87ANFP#U0 drive, and what bias/duty configurations are supported?

The R5F2LA87ANFP#U0 drives up to 40 segment outputs and 4 common outputs, supporting static, 1/2, 1/3, and 1/4 duty cycles with 1/2 or 1/3 bias. This flexibility accommodates diverse LCD glass types used in appliance panels and industrial HMIs without external driver ICs.

What serial communication interfaces are available on the R5F2LA87ANFP#U0?

The R5F2LA87ANFP#U0 provides UART0, UART2 (with I²C-bus mode), and a synchronous serial unit (SSU) shared with I²C. This enables concurrent communication with multiple peripherals - for example, UART0 for host MCU, UART2 in I²C mode for EEPROM, and SSU for display controller - all without external bus arbitration.

Is the R5F2LA87ANFP#U0 pin-compatible with other members of the R8C/LA8A Group?

Yes, all R8C/LA8A Group devices in the 80-pin LQFP package - including R5F2LA84ANFP, R5F2LA86ANFP, R5F2LA87ANFP#U0, R5F2LA88ANFP, and R5F2LA8AANFP - share identical pinouts and electrical characteristics. Firmware and PCB layouts are interchangeable across this family, simplifying design scalability.