Renesas R5F2L38AMNFA#V0

Overview

R5F2L38AMNFA#V0 from Renesas is a 16-bit R8C/L38M Group microcontroller featuring the R8C CPU core, 96 KB flash program memory, 10 KB RAM, and integrated LCD drive control supporting up to 8 common and 48 segment outputs. It operates at up to 20 MHz (2.7–5.5 V), includes a 10-bit ADC with 16 channels, dual 8-bit DACs, and multiple timers including Timer RD for three-phase PWM generation - deployed in appliance control panels requiring integrated display driving and analog sensing.

For engineers reviewing the R5F2L38AMNFA#V0 datasheet, R5F2L38AMNFA#V0 pinout, R5F2L38AMNFA#V0 application, or R5F2L38AMNFA#V0 equivalent, key selection criteria include its 80-pin LQFP package (0.65 mm pitch), -20°C to +85°C temperature grade, background operation (BGO) data flash, and hardware LIN support via UART0 and Timer RA - critical for cost-sensitive, display-integrated consumer control systems.

Technical Context

The R5F2L38AMNFA#V0 implements the R8C CPU core with 89 fundamental instructions and a 16×16→32-bit hardware multiplier, enabling efficient real-time control. Its clock system integrates four independent sources: XIN oscillator (up to 20 MHz), XCIN 32-kHz crystal circuit, high-speed on-chip oscillator (frequency-adjustable), and low-speed on-chip oscillator - all selectable via software-controlled frequency dividers (1/2/4/8/16).

Peripheral integration includes Timer RD (16-bit ×2, 6-pin complementary PWM), Timer RG (16-bit phase counting), UART0/1/2 (with I²C mode on UART2), SSU, LIN module (hardware-assisted), DTC (1 channel, 38 activation sources), and voltage detection with power-on reset and configurable voltage monitoring - optimized for EMI/EMS robustness in noisy appliance environments.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (PLQP0080JA-A), 12 × 12 mm body, 0.65 mm pin pitch, exposed pad not specified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F2L38AMNFA#V0, R5F2L38AMNFP offers identical electrical performance but demands tighter PCB trace spacing, while R5F2L36AMNFA reduces display and sensing capability to lower BOM cost - making R5F2L38AMNFA#V0 optimal for mid-tier appliances needing balanced I/O, LCD, and analog resources.

Availability

R5F2L38AMNFA#V0 is available at Aetrix Electronics and suitable for refrigerator control panels, washing machine UI boards, microwave oven displays, and air conditioner remote interfaces requiring stable component supply and long-term industrial availability.

Supply support for R5F2L38AMNFA#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 consumer markets.

The R8C/L38M Group targets cost-optimized, display-integrated consumer appliances - designed to consolidate LCD driving, analog sensing, motor control, and communication into a single low-power 16-bit MCU with extended temperature reliability.

FAQ

What is the maximum operating frequency and supply voltage range for the R5F2L38AMNFA#V0?

The R5F2L38AMNFA#V0 operates at up to 20 MHz when supplied with 2.7–5.5 V, and supports reduced-frequency operation down to 5 MHz at 1.8 V minimum. This dual-voltage capability allows compatibility with both 3.3 V and 5 V system rails while maintaining real-time performance across wide input conditions.

Does the R5F2L38AMNFA#V0 support hardware LIN communication?

Yes, the R5F2L38AMNFA#V0 integrates a hardware LIN module using UART0 and Timer RA, compliant with LIN 2.0/2.1 specifications. It handles break detection, sync field, and checksum calculation autonomously - reducing CPU load to <5% during LIN frame transmission and reception in appliance sub-system networks.

How many LCD segments and commons does the R5F2L38AMNFA#V0 support?

The R5F2L38AMNFA#V0 supports up to 48 segment outputs and 8 common outputs, configured via dedicated LCD control registers. Its integrated voltage multiplier and bias regulator (VL1–VL4) eliminate external components, enabling direct drive of multiplexed alphanumeric displays commonly used in refrigerators and microwaves.

What low-power modes are available on the R5F2L38AMNFA#V0, and what are their typical current draws?

The R5F2L38AMNFA#V0 offers wait mode (3.5 µA @3 V, 32 kHz), stop mode (2 µA), and power-off mode (1.4 µA with Timer RE active; 0.02 µA with RE disabled). These modes are controlled via system control registers and support fast wake-up (<10 µs) from external interrupts or RTC alarms - ideal for battery-backed remote controls.

Is background operation (BGO) supported for data flash writes on the R5F2L38AMNFA#V0?

Yes, the R5F2L38AMNFA#V0 supports Background Operation (BGO) for its 1 KB ×4 data flash blocks. While flash is being rewritten, the CPU continues executing code from program ROM - enabling real-time logging of sensor data or over-the-air parameter updates without application interruption.