Renesas R5F2136CWJFP#U0

Overview

R5F2136CWJFP#U0 from Renesas Electronics is a 16-bit single-chip microcontroller in the R8C/27 Group, featuring an R8C CPU core, 32 KB flash program memory, 1.5 KB RAM, and on-chip 1 KB × 2 data flash. It operates from 2.7–5.5 V at up to 20 MHz (50 ns min. instruction cycle), supports -40°C to +85°C ambient temperature (J version), and integrates 12-channel 10-bit A/D, dual UARTs, I²C, LIN, and multiple timers for embedded control in consumer and industrial systems.

For engineers reviewing the R5F2136CWJFP#U0 datasheet, R5F2136CWJFP#U0 pinout, R5F2136CWJFP#U0 application, or R5F2136CWJFP#U0 equivalent, this page delivers verified technical context, exact pin functions, real-world use cases, and validated alternative parts - all grounded in Renesas' official R8C/27 Group documentation (REJ03B0168-0210, Rev.2.10).

Technical Context

The R5F2136CWJFP#U0 implements the R8C 16-bit CISC CPU with 89 instructions, 1 Mbyte address space, and dual register banks for efficient context switching. Its memory subsystem includes 32 KB on-chip flash (1,000 erase/write cycles) and 1 KB × 2 data flash (10,000 cycles), enabling reliable firmware updates and parameter storage.

Peripheral integration centers on real-time control: Timer RC (16-bit input capture/output compare), Timer RE (real-time clock with compare match), hardware LIN module (using Timer RA and UART0), and 10-bit A/D converter with 12 analog inputs. Clock generation includes XIN/XOUT (up to 20 MHz), high-speed on-chip oscillator (adjustable), and XCIN/XCOUT (32 kHz, J version supported).

Key Specifications

Pinout & Package

Package: 32-pin molded-plastic LQFP (PLQP0032GB-A, 7 mm × 7 mm, 0.8 mm pitch).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F2136CWJFP#U0, R5F21276JFP offers identical core functionality without preprogrammed ROM, reducing unit cost but increasing firmware deployment complexity; R5F21376JFP provides measurable upgrades in RAM size, UART count, and data flash endurance - making it ideal for scalable platforms where long-term reliability and feature headroom matter.

Availability

R5F2136CWJFP#U0 is available at Aetrix Electronics and suitable for home appliance control, industrial sensor nodes, automotive body electronics, and office equipment motor drive applications requiring stable component supply across extended product lifecycles.

Supply support for R5F2136CWJFP#U0 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, power, and SoC solutions for automotive, industrial, and IoT markets.

The R8C/27 Group, including R5F2136CWJFP#U0, was designed for cost-sensitive, real-time embedded control in consumer electronics and industrial equipment - emphasizing integrated peripherals, low-power operation, and robust flash memory architecture.

FAQ

What is the operating temperature range for R5F2136CWJFP#U0?

R5F2136CWJFP#U0 is rated for -40°C to +85°C ambient temperature (J version), making it suitable for automotive cabin modules, industrial controllers, and outdoor consumer devices. This specification is confirmed in Renesas' R8C/27 Group datasheet (REJ03B0168-0210, Table 1.2) and applies across its full 2.7–5.5 V supply range.

Does R5F2136CWJFP#U0 include on-chip data flash, and what is its endurance?

Yes, R5F2136CWJFP#U0 includes 1 KB × 2 on-chip data flash with 10,000 erase/write cycles - significantly higher than its 1,000-cycle program ROM endurance. This enables reliable storage of calibration coefficients, device IDs, or runtime parameters without external memory, as specified in Table 1.2 of the R8C/27 Group datasheet.

Is R5F2136CWJFP#U0 pin-compatible with other R8C/27 Group MCUs?

Yes, R5F2136CWJFP#U0 uses the standard 32-pin LQFP (PLQP0032GB-A) package shared across the R8C/27 Group, including R5F2127x and R5F2137x variants. Pin functions - including power, reset, XIN/XOUT, A/D inputs, and UART signals - are identical per Figure 1.4 and Table 1.5 in the official documentation.

What clock sources does R5F2136CWJFP#U0 support for real-time clock operation?

R5F2136CWJFP#U0 supports real-time clock (RTC) operation via its Timer RE using the 32 kHz XCIN/XCOUT crystal oscillator circuit - explicitly enabled in J-version devices per Table 1.2 and Figure 1.1. The high-speed on-chip oscillator (adjustable) and XIN clock are also available for main system timing.

How many analog input channels does the 10-bit A/D converter in R5F2136CWJFP#U0 support?

The R5F2136CWJFP#U0 integrates a single 10-bit A/D converter with 12 analog input channels (AN0 through AN11), mapped to P0_0–P0_7, P1_0–P1_3, P3_1, and P3_4. This is confirmed in Tables 1.1 and 1.2 and Figure 1.1 of the R8C/27 Group datasheet, supporting multi-sensor monitoring in compact designs.