Renesas R5F2L3ACCDFA#U1

Overview

R5F2L3ACCDFA#U1 from Renesas is an 88-pin, 100-pin LQFP/ QFP 16-bit R8C/L3AC Group microcontroller with R8C CPU core, 128 KB program flash, 10 KB RAM, 20-channel 10-bit ADC, and integrated LCD driver supporting up to 8 common and 56 segment outputs - used in appliance control panels requiring high I/O count and on-chip display management.

For engineers reviewing the R5F2L3ACCDFA#U1 datasheet, R5F2L3ACCDFA#U1 pinout, R5F2L3ACCDFA#U1 application, or R5F2L3ACCDFA#U1 equivalent, key selection criteria include its 88 programmable I/O ports, 16 high-current drive pins, real-time clock (Timer RE), LIN bus hardware support, and background operation (BGO) for data flash updates during runtime.

Technical Context

The R5F2L3ACCDFA#U1 implements the R8C CPU core with 89 fundamental instructions and a 16×16→32-bit hardware multiplier, enabling efficient signal processing and control loop execution. It supports a 1 Mbyte address space and executes instructions in as little as 50 ns at 20 MHz.

Its peripheral set includes Timer RD (16-bit ×2, supporting complementary PWM for motor control), UART0/1/2 with I²C mode, LIN module (using Timer RA and UART0), DTC for autonomous data transfers, and voltage detection with power-on reset - all optimized for low EMI/EMS in consumer-grade industrial environments.

Key Specifications

Pinout & Package

Package: 100-pin QFP (PRQP0100JD-B), 0.65 mm pitch, -40°C to +85°C operating range (D version).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F2L3ACCNFA and R5F2L38CCDFA, the R5F2L3ACCDFA#U1 uniquely delivers 88 I/Os, 16 high-drive pins, and full 56-segment LCD support in a rugged QFP package - making it the only option among the three qualified for demanding industrial display and appliance control applications requiring extended temperature operation and direct segment driving.

Availability

R5F2L3ACCDFA#U1 is available at Aetrix Electronics and suitable for appliance control panels, HVAC interfaces, smart kitchen devices, and industrial display terminals requiring stable component supply across long production lifecycles.

Supply support for R5F2L3ACCDFA#U1 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/L3AC Group is designed for cost-sensitive, high-integration embedded systems requiring rich analog peripherals, LCD management, and robust real-time control - especially in white goods and human-machine interface applications.

FAQ

What is the operating temperature range of the R5F2L3ACCDFA#U1?

The R5F2L3ACCDFA#U1 is a D-version device rated for -40°C to +85°C ambient operation, making it suitable for industrial and automotive-adjacent environments where thermal stability is critical. This specification is confirmed in Table 1.6 of the R01DS0095EJ0101 datasheet and applies to the PRQP0100JD-B QFP package used by R5F2L3ACCDFA#U1.

Does the R5F2L3ACCDFA#U1 support hardware LIN communication?

Yes, the R5F2L3ACCDFA#U1 integrates a dedicated hardware LIN module compliant with LIN 2.0/2.1 standards, implemented using UART0 and Timer RA. This eliminates the need for bit-banged software LIN stacks and ensures deterministic timing - a confirmed feature in Section 1.1.3 and Figure 1.8 of the R01DS0095EJ0101 datasheet.

How many analog input channels does the R5F2L3ACCDFA#U1 have?

The R5F2L3ACCDFA#U1 features a 10-bit successive-approximation ADC with 20 configurable analog input channels (AN0–AN19), as specified in Table 1.5 under "A/D Converter" for the R8C/L3AC Group. These channels support sample-and-hold and automatic sweep mode for efficient multi-sensor acquisition.

What package type is used by the R5F2L3ACCDFA#U1?

The R5F2L3ACCDFA#U1 uses the PRQP0100JD-B package: a 100-pin QFP with 0.65 mm pin pitch and lead-free finish. This is explicitly listed in Table 1.10 (Product List for R8C/L3AC Group) and differs from the LQFP variants (e.g., PLQP0100KB-A) used by N-version parts.

Can the R5F2L3ACCDFA#U1 perform flash reprogramming while running application code?

Yes, the R5F2L3ACCDFA#U1 supports Background Operation (BGO) for its 1 KB ×4 data flash memory, allowing erase and write operations to proceed concurrently with CPU program execution. This capability is documented in Table 1.6 ("Flash Memory") and enables seamless firmware updates and parameter storage without system interruption.