Renesas R5F2L38CCNFA#V1

Overview

R5F2L38CCNFA#V1 from Renesas Electronics is an 8-bit R8C/L38C Group microcontroller featuring the R8C CPU core, 128 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 (50 ns min instruction time), includes a 16×16-bit hardware multiplier, 10-bit ×16-channel ADC, dual 8-bit DACs, and supports -20°C to +85°C ambient temperature in an 80-pin LQFP package with 0.65 mm pitch.

For engineers reviewing the R5F2L38CCNFA#V1 datasheet, R5F2L38CCNFA#V1 pinout, R5F2L38CCNFA#V1 application, or R5F2L38CCNFA#V1 equivalent, key selection criteria include its 68 programmable I/O ports, real-time clock (Timer RE), LIN bus support via UART0 and Timer RA, background operation (BGO) for data flash, and low-power stop mode consuming only 2 µA.

Technical Context

The R5F2L38CCNFA#V1 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 (up to 20 MHz), 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 timing and human interface: Timer RD provides three-phase PWM with complementary output (6 pins), Timer RG supports phase counting and single-pin PWM, and the LCD controller integrates voltage multiplier and bias regulation for static/1/2/1/3/1/4 duty operation - all coordinated via the Data Transfer Controller (DTC) with 38 activation sources and repeat/normal transfer modes.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F2L38ACNFA#V1, the R5F2L38CCNFA#V1 offers 32 KB additional flash for feature-rich UIs and field-upgradable firmware; versus R5F2L38CCNFP#V1, it trades finer pitch for relaxed assembly yield and broader contract manufacturer compatibility.

Availability

R5F2L38CCNFA#V1 is available at Aetrix Electronics and suitable for appliance control panels, office equipment displays, and consumer audio UIs requiring stable component supply across multi-year production cycles.

Supply support for R5F2L38CCNFA#V1 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/L38C Group is designed for cost-sensitive, low-power human interface applications requiring integrated LCD driving, analog sensing, and communication interfaces - targeting white goods and consumer electronics.

FAQ

What is the maximum operating frequency and corresponding supply voltage range for the R5F2L38CCNFA#V1?

The R5F2L38CCNFA#V1 supports a maximum operating frequency of 20 MHz at a supply voltage of 2.7 V to 5.5 V. At lower frequencies (e.g., 5 MHz), it operates down to 1.8 V, enabling flexible power management in battery-powered designs. This dual-voltage/frequency specification allows designers to optimize performance versus energy consumption based on application requirements.

Does the R5F2L38CCNFA#V1 support hardware LIN communication, and which peripherals are involved?

Yes, the R5F2L38CCNFA#V1 includes a dedicated hardware LIN module that uses UART0 for serial framing and Timer RA for baud rate generation and synchronization - implementing ISO 9141-2/KWP2000 without CPU intervention. This offloads LIN protocol handling from firmware, ensuring deterministic timing and freeing CPU resources for application tasks.

How many analog input channels does the R5F2L38CCNFA#V1 ADC support, and what resolution and features are included?

The R5F2L38CCNFA#V1 integrates a 10-bit successive-approximation ADC with 16 input channels (AN0–AN15), including sample-and-hold circuitry and hardware sweep mode. Sweep mode automatically sequences conversions across selected channels, enabling synchronized multi-sensor acquisition - ideal for temperature, voltage, and current monitoring in appliance control systems.

What LCD bias and duty configurations are supported by the R5F2L38CCNFA#V1's built-in controller?

The R5F2L38CCNFA#V1 LCD controller supports 1/2, 1/3, and 1/4 bias ratios and static, 1/2, 1/3, 1/4, and 1/8 duty cycles. It integrates a voltage multiplier and dedicated regulator (VL1–VL4 pins), allowing direct drive of common LCD modules without external bias generators - simplifying design and reducing component count.

Is the R5F2L38CCNFA#V1 pin-compatible with other members of the R8C/L38C Group, such as the R5F2L387CNFA#V1?

Yes, all R8C/L38C Group variants sharing the PLQP0080JA-A (80-pin LQFP, 0.65 mm pitch) package - including R5F2L387CNFA#V1, R5F2L388CNFA#V1, R5F2L38ACNFA#V1, and R5F2L38CCNFA#V1 - are fully pin-compatible. Differences are limited to internal flash/RAM capacity and factory-programmed security settings, enabling scalable firmware development across the family.