Renesas R5F2L387CNFA#V0

Overview

R5F2L387CNFA#V0 from Renesas is an 8-bit R8C/L38C Group microcontroller featuring the R8C CPU core, 48 KB flash program memory, 6 KB RAM, and integrated LCD drive control supporting up to 48 segment outputs and 8 common outputs. It operates at up to 20 MHz (VCC = 2.7–5.5 V), includes a 10-bit × 16-channel A/D converter, dual 8-bit D/A converters, and supports real-time clock, LIN bus, and background data flash rewriting (BGO). It targets embedded control in consumer audio and office equipment with LCD interfaces.

For engineers reviewing the R5F2L387CNFA#V0 datasheet, R5F2L387CNFA#V0 pinout, R5F2L387CNFA#V0 application, or R5F2L387CNFA#V0 equivalent, key selection criteria include its 80-pin LQFP (0.65 mm pitch) package, -20°C to +85°C temperature grade (N version), 16-channel ADC, LCD bias/duty flexibility (1/2–1/4 bias, static–1/8 duty), and integrated LIN module using Timer RA and UART0.

Technical Context

The R5F2L387CNFA#V0 implements the R8C CPU core with 89 fundamental instructions and hardware multiplier (16×16→32 bits), enabling efficient signal processing in resource-constrained systems. Its system clock generation includes four independent circuits: XIN oscillator (up to 20 MHz), XCIN 32-kHz crystal input, high-speed on-chip oscillator (frequency-adjustable), and low-speed on-chip oscillator - all selectable via software for dynamic power management.

Peripheral integration centers on mixed-signal control: Timer RD provides three-phase complementary PWM (6-pin output) for motor drive, while Timer RG supports phase-counting mode for encoder interfacing. The LCD controller integrates voltage multiplier and dedicated regulator, enabling direct drive of multiplexed displays without external bias components.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (PLQP0080JA-A), 0.65 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 R5F2L387CNFA#V0, R5F2L388CNFA#V0 offers scalable memory without peripheral or timing trade-offs, while R5F2L367CNFA#V0 reduces pin count and LCD capability - making it viable only when display size and analog channel count are strictly limited.

Availability

R5F2L387CNFA#V0 is available at Aetrix Electronics and suitable for audio equipment control, office device panels, and consumer appliance interfaces requiring stable component supply across multi-year production cycles.

Supply support for R5F2L387CNFA#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, and power solutions for automotive, industrial, and IoT markets.

The R8C/L38C Group targets cost-sensitive, LCD-integrated embedded systems in consumer electronics, offering optimized mix of analog peripherals, display control, and low-power operation - designed specifically for appliances and audio devices with human interfaces.

FAQ

What is the maximum operating frequency and supply voltage range for the R5F2L387CNFA#V0?

The R5F2L387CNFA#V0 supports a maximum operating frequency of 20 MHz at supply voltages between 2.7 V and 5.5 V. At lower voltages down to 1.8 V, the maximum frequency is reduced to 5 MHz. This dual-voltage/frequency specification allows flexible power management in battery-powered or wide-input industrial applications while maintaining real-time performance.

Does the R5F2L387CNFA#V0 support hardware LIN communication, and which peripherals are involved?

Yes, the R5F2L387CNFA#V0 includes a dedicated hardware LIN module compliant with LIN 2.0/2.1 standards. It uses UART0 for serial framing and Timer RA for accurate baud rate generation and synchronization - eliminating software bit-banging and ensuring robust communication in noisy automotive or industrial environments without external LIN transceivers.

How many analog-to-digital converter channels does the R5F2L387CNFA#V0 have, and what is their resolution?

The R5F2L387CNFA#V0 integrates a 10-bit successive-approximation ADC with 16 input channels (AN0–AN15). It includes sample-and-hold functionality and sweep mode for automatic sequential conversion, enabling precise monitoring of multiple sensors - such as temperature, light, or potentiometer inputs - in consumer appliance control applications.

What LCD display configurations are supported by the R5F2L387CNFA#V0's built-in controller?

The R5F2L387CNFA#V0 LCD controller supports up to 8 common (COM) and 48 segment (SEG) outputs, enabling static, 1/2, 1/3, 1/4, or 1/8 duty drive schemes with 1/2, 1/3, or 1/4 bias voltage. Its integrated voltage multiplier and regulator allow direct connection to LCD glass without external bias components - ideal for custom alphanumeric or icon-based displays in audio and office equipment.

Is the R5F2L387CNFA#V0 pin-compatible with other members of the R8C/L38C Group, such as R5F2L388CNFA#V0?

Yes, the R5F2L387CNFA#V0 is fully pin-compatible with all other R8C/L38C Group variants in the same 80-pin LQFP package (PLQP0080JA-A), including R5F2L388CNFA#V0, R5F2L38ACNFA#V0, and R5F2L38CCNFA#V0. They share identical pin assignments, peripheral mappings, and electrical characteristics - allowing memory-size-based scalability without PCB redesign.