Renesas R5F2L36ACNFP#31

Overview

R5F2L36ACNFP#31 from Renesas Electronics is a 16-bit R8C/L36C Group microcontroller featuring the R8C CPU core, 96 KB flash program memory, 1 KB × 4 data flash with background operation (BGO), and 10 KB RAM. It delivers 50 ns minimum instruction execution at 20 MHz, integrates a 16×16→32-bit hardware multiplier, and supports LCD drive (up to 8 COM / 32 SEG pins) for embedded appliance control interfaces.

For engineers reviewing the R5F2L36ACNFP#31 datasheet, R5F2L36ACNFP#31 pinout, R5F2L36ACNFP#31 application, or R5F2L36ACNFP#31 equivalent, key selection criteria include its 64-pin LQFP package (PLQP0064KB-A), 52 programmable I/O ports with 8 high-current drive pins, 10-bit × 10-channel ADC, dual UART + I²C + LIN support, and -20°C to +85°C industrial temperature grade.

Technical Context

The R5F2L36ACNFP#31 implements the R8C CPU core with 89 fundamental instructions and single-chip 1 Mbyte address space. Its clock system includes XIN/XOUT (up to 20 MHz), XCIN/XCOUT (32 kHz), high-speed on-chip oscillator (frequency-adjustable), and low-speed on-chip oscillator - all selectable via software-controlled frequency divider (1/2/4/8/16).

Peripheral integration centers on timer flexibility: Timer RA/RB (8-bit), Timer RC (16-bit, 4 capture/compare registers), Timer RD (16-bit × 2, supporting complementary PWM and three-phase waveform generation), Timer RE (real-time clock), and Timer RG (16-bit phase-counting/PWM). The DTC (Data Transfer Controller) provides 1-channel autonomous transfers triggered by 38 sources.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (PLQP0064KB-A), 0.50 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 R5F2L36ACNFP#31, R5F2L368CNFP offers reduced memory at lower cost but limits firmware scalability, while R5F2L38ACNFP provides significant peripheral headroom at the expense of board space and layout change - making R5F2L36ACNFP#31 optimal for mid-complexity appliance UIs balancing I/O, display, and memory.

Availability

R5F2L36ACNFP#31 is available at Aetrix Electronics and suitable for home appliance control panels, industrial HMIs, audio equipment front panels, and consumer power management systems requiring stable component supply across production lifecycles.

Supply support for R5F2L36ACNFP#31 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/L36C Group, including R5F2L36ACNFP#31, was designed for cost-sensitive, LCD-equipped embedded control applications demanding low power, integrated peripherals, and robust EMI/EMS performance in appliances and consumer electronics.

FAQ

What is the operating temperature range for R5F2L36ACNFP#31?

The R5F2L36ACNFP#31 is rated for an industrial operating ambient temperature range of -20°C to +85°C (N version). This specification is confirmed in Table 1.6 of the R01DS0095EJ0101 datasheet and applies to all electrical characteristics unless otherwise noted. The device does not support the extended -40°C to +85°C (D version) range - that variant uses suffix "D" (e.g., R5F2L36ACDFP), not "N".

Does R5F2L36ACNFP#31 support in-circuit debugging?

Yes, R5F2L36ACNFP#31 includes a fully integrated on-chip debug function supporting flash programming, real-time variable monitoring, and breakpoint execution via a single-wire interface. This capability is documented in Table 1.6 (Specifications) and Section 2.2 (Debug Function) of the R01DS0095EJ0101 datasheet, enabling development without external JTAG emulators.

How many analog input channels does R5F2L36ACNFP#31 have?

R5F2L36ACNFP#31 features a 10-bit successive-approximation ADC with 10 dedicated analog input channels (AN0–AN9), as specified in Table 1.5 (Specifications (2)) and confirmed in the R8C/L36C Group block diagram (Figure 1.6). These channels support sample-and-hold and hardware sweep mode for efficient multi-channel acquisition.

What LCD display configurations are supported by R5F2L36ACNFP#31?

R5F2L36ACNFP#31 supports LCD drive with up to 8 common output pins and 32 segment output pins, enabling static, 1/2, 1/3, 1/4, or 1/8 duty drive schemes. Bias options include 1/2 and 1/3, and the internal voltage multiplier eliminates need for external charge pumps - details are in Table 1.5 and Figure 1.6 of the R01DS0095EJ0101 datasheet.

Is R5F2L36ACNFP#31 pin-compatible with other R8C/L3x Group MCUs?

No, R5F2L36ACNFP#31 is not pin-compatible with R8C/L35C (52-pin), R8C/L38C (80-pin), or R8C/L3AC (100-pin) Group devices due to differing package sizes and pin counts. Within the R8C/L36C Group, it shares the 64-pin LQFP (PLQP0064KB-A) footprint and pin assignment with variants like R5F2L367CNFP and R5F2L368CNFP - confirmed in Figure 1.10 and Table 1.8.