Renesas R5F2L387MDFP#30

Overview

R5F2L387MDFP#30 from Renesas Electronics is an 8-bit R8C CPU core MCU with 48 KB flash, 6 KB RAM, and integrated LCD controller supporting up to 48 segment/8 common outputs. It operates at 20 MHz (2.7–5.5 V) or 5 MHz (1.8–5.5 V), features 16-bit timers (RD ×2, RC, RG), 10-bit ADC (16 channels), dual 8-bit DACs, LIN module, and background data flash operation. Designed for cost-sensitive consumer appliance control with integrated display driving.

For engineers reviewing the R5F2L387MDFP#30 datasheet, R5F2L387MDFP#30 pinout, R5F2L387MDFP#30 application, or R5F2L387MDFP#30 equivalent, key selection criteria include its 80-pin LQFP package, -40°C to +85°C industrial temperature grade, 16-channel ADC with sweep mode, real-time clock (timer RE), and hardware LIN bus support using UART0 and timer RA.

Technical Context

The R5F2L387MDFP#30 implements the R8C CPU core with 89 fundamental instructions and a dedicated 16×16→32-bit multiplier for efficient math-intensive tasks. Its clock system includes four independent sources: XIN (up to 20 MHz), XCIN (32 kHz), high-speed on-chip oscillator (adjustable), and low-speed on-chip oscillator - all selectable via software and supported by oscillation stop detection.

Peripheral integration centers on mixed-signal control: Timer RD provides three-phase PWM with complementary output and reset-synchronous modes; the LCD controller integrates voltage multiplier and regulator for bias generation; and the DTC enables autonomous data transfers triggered by 38 sources including ADC completion and UART reception.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (PLQP0080KB-A), 0.50 mm pitch, exposed pad not specified, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit MCU applications.

Compared with R5F2L387MDFP#30, R5F2L388MDFP#30 offers headroom for future firmware expansion without layout changes, while R5F2L367MDFP#30 trades segment count and I/O for smaller footprint - making it suitable for simpler UIs where display depth and sensor count are lower.

Availability

R5F2L387MDFP#30 is available at Aetrix Electronics and suitable for refrigerator control panels, smart microwave ovens, washing machine interfaces, office equipment keypads, and consumer appliance displays requiring stable component supply across extended production lifecycles.

Supply support for R5F2L387MDFP#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for automotive, industrial, and consumer markets.

The R8C/L38M Group targets cost-optimized, display-integrated control applications in white goods and audio equipment, emphasizing low-power operation, integrated LCD driving, and robust peripheral sets for human-machine interface subsystems.

FAQ

What is the maximum operating frequency and voltage range for the R5F2L387MDFP#30?

The R5F2L387MDFP#30 operates at up to 20 MHz when supplied with 2.7–5.5 V, and supports 5 MHz operation down to 1.8 V. This dual-voltage/frequency capability enables flexible power management - high performance during active UI updates and low-power modes during standby, all within a single device without external regulators.

Does the R5F2L387MDFP#30 support hardware LIN communication?

Yes, the R5F2L387MDFP#30 includes a dedicated hardware LIN module compliant with LIN 2.1 and SAE J2602 standards. It uses UART0 and timer RA to generate accurate baud rates and sync fields, eliminating software bit-banging and ensuring deterministic timing for automotive-grade body electronics and appliance sub-systems.

How many LCD segments and commons does the R5F2L387MDFP#30 support?

The R5F2L387MDFP#30 supports up to 48 segment outputs and 8 common outputs, enabling static, 1/2, 1/3, 1/4, or 1/8 duty LCD configurations. Its integrated voltage multiplier and VL1–VL4 pins eliminate external bias generation components, reducing BOM cost and board area for consumer display interfaces.

What is the purpose of the Data Transfer Controller (DTC) in the R5F2L387MDFP#30?

The DTC in the R5F2L387MDFP#30 is a single-channel autonomous data mover that responds to 38 peripheral events - including ADC conversion completion and UART receive interrupts - to transfer data between memory and registers without CPU intervention. This reduces interrupt latency and frees the CPU for real-time control tasks in appliance motor and sensor systems.

Is the R5F2L387MDFP#30 qualified for industrial temperature operation?

Yes, the R5F2L387MDFP#30 carries the 'D' suffix indicating qualification for -40°C to +85°C ambient operation. This makes it suitable for deployment in demanding environments such as kitchen appliances, laundry rooms, and commercial office equipment where thermal cycling and extended runtime are critical design constraints.