Renesas R5F2L3AACNFP#V0

Overview

R5F2L3AACNFP#V0 from Renesas Electronics is a 16-bit R8C/L3AC 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 56 segment outputs. It delivers 50 ns minimum instruction execution at 20 MHz, includes a 16×16-bit hardware multiplier, and operates across 1.8–5.5 V with ultra-low power modes (2 µA stop mode). It targets embedded control in LCD-based consumer appliances requiring high I/O count and analog integration.

For engineers reviewing the R5F2L3AACNFP#V0 datasheet, R5F2L3AACNFP#V0 pinout, R5F2L3AACNFP#V0 application, or R5F2L3AACNFP#V0 equivalent, key selection criteria include its 88-pin LQFP package, 20-channel 10-bit ADC, dual 8-bit DACs, LIN bus support via UART0 + Timer RA, and background operation (BGO) for data flash reprogramming during runtime.

Technical Context

The R5F2L3AACNFP#V0 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 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-controlled clock switching.

Peripheral integration centers on mixed-signal timing and display control: Timer RD provides three-phase complementary PWM (6-pin output), Timer RG enables phase-counting for motor position sensing, and the LCD controller integrates voltage multiplier and bias regulation for static/1/2/1/3/1/4 duty operation with up to 56 segment drivers - all managed without external components.

Key Specifications

Pinout & Package

Package: PLQP0100KB-A - 100-pin LQFP (0.5 mm pitch), 14 × 14 mm body, exposed thermal pad, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit MCU applications.

Compared with R5F2L3AACNFP#V0, R5F2L3ACCNFP#V0 offers 32 KB more flash for complex firmware but identical peripheral capability, while R5F2L38ACNFP#V0 trades 12 segment outputs and 4 ADC channels for a smaller 80-pin footprint - making it viable only where display and sensing scope is reduced.

Availability

R5F2L3AACNFP#V0 is available at Aetrix Electronics and suitable for refrigerator control panels, microwave oven HMIs, and washing machine user interfaces requiring stable component supply, long-term industrial lifecycle support, and RoHS-compliant manufacturing.

Supply support for R5F2L3AACNFP#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/L3AC Group, including R5F2L3AACNFP#V0, was designed for cost-sensitive, LCD-driven consumer appliances requiring high I/O density, integrated analog front-ends, and ultra-low-power operation - balancing performance, integration, and manufacturability.

FAQ

What is the maximum operating frequency and supply voltage range for the R5F2L3AACNFP#V0?

The R5F2L3AACNFP#V0 supports a maximum operating frequency of 20 MHz at VCC = 2.7–5.5 V, and 5 MHz at VCC = 1.8–5.5 V. Its wide voltage range enables direct compatibility with both 3.3 V and 5 V system rails without level-shifting, and the 1.8 V lower limit allows integration into battery-powered or energy-harvesting designs where supply voltage may dip during peak load.

Does the R5F2L3AACNFP#V0 support hardware LIN communication, and how is it implemented?

Yes, the R5F2L3AACNFP#V0 includes a dedicated hardware LIN module that combines UART0 and Timer RA to implement ISO 9141-2 and LIN 2.x protocols. This offloads LIN frame generation, checksum calculation, and synchronization from the CPU, enabling reliable sub-system communication in appliances like refrigerators or HVAC units without consuming significant MCU resources or introducing timing jitter.

How many analog input channels does the R5F2L3AACNFP#V0 have, and what is their resolution?

The R5F2L3AACNFP#V0 features a 10-bit successive-approximation ADC with 20 configurable analog input channels (AN0–AN19). Each channel supports sample-and-hold and sweep mode, allowing sequential conversion of all enabled inputs in a single trigger event - ideal for reading multiple thermistors, potentiometers, or current-sense signals in appliance control systems.

What LCD display configurations are supported by the R5F2L3AACNFP#V0's built-in controller?

The R5F2L3AACNFP#V0's LCD controller supports static, 1/2, 1/3, and 1/4 duty drive with 1/2, 1/3, or 1/4 bias - configurable via registers. It drives up to 8 common and 56 segment outputs, enabling alphanumeric or icon-based displays up to 448 segments. Internal voltage multiplier and VL1–VL4 pins eliminate external bias components, reducing bill-of-materials and layout complexity.

Is background operation (BGO) available for data flash programming on the R5F2L3AACNFP#V0?

Yes, the R5F2L3AACNFP#V0 supports background operation (BGO) for its 1 KB × 4 data flash blocks. This allows flash erase/write operations to proceed asynchronously while the CPU executes application code - enabling seamless firmware updates, parameter logging, or calibration storage without interrupting real-time tasks such as motor control or display refresh.