Renesas R5F2136CCNFA#U0

Overview

R5F2136CCNFA#U0 from Renesas Electronics is a 16-bit R8C CPU core microcontroller with 128 KB program ROM, 10 KB data flash (4 × 1 KB blocks), and 10 KB RAM in a 64-pin LQFP (PLQP0064GA-A) package. It delivers 50 ns minimum instruction execution at 20 MHz (V_CC = 2.7–5.5 V), integrates dual 10-bit A/D converters (12 channels), dual 8-bit D/A outputs, LIN hardware module, and supports real-time clock, PWM, and background operation (BGO) for firmware updates - deployed in consumer audio and office equipment control systems.

For engineers reviewing the R5F2136CCNFA#U0 datasheet, R5F2136CCNFA#U0 pinout, R5F2136CCNFA#U0 application, or R5F2136CCNFA#U0 equivalent, key selection criteria include its 64-pin LQFP footprint, −20°C to +85°C industrial temperature grade, integrated LIN transceiver support via UART0+TimerRA, BGO-enabled field firmware updates, and 14-bit watchdog timer with selectable low-speed on-chip oscillator.

Technical Context

The R5F2136CCNFA#U0 implements the R8C CPU core with 89 fundamental instructions, 1 Mbyte address space, and dedicated 16×16→32-bit multiplier with MAC capability. Its memory architecture separates 128 KB program ROM (flash), 10 KB data flash (BGO-capable), and 10 KB RAM across non-overlapping address regions (04000h–23FFFh for ROM, 00400h–02BFFh for RAM, 03000h–03FFFh for data flash).

Peripheral integration includes Timer RD (16-bit ×2, 6-pin complementary PWM), Timer RC (16-bit, 3-pin PWM), UART0/1/2 (I²C-capable), SSU, LIN hardware module, 10-bit A/D converter with sample-and-hold and sweep mode, and dual 8-bit D/A converters - all controlled via dedicated SFRs mapped to fixed addresses (e.g., CM0 at 0006h, WDTC at 000Fh).

Key Specifications

Pinout & Package

64-pin LQFP package (PLQP0064GA-A), 10 mm × 10 mm body, 0.5 mm lead pitch, exposed pad not specified. Pin 1 marked by notch or dot; thermal pad optional per Renesas design guidelines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F2136CCNFA#U0, the R5F2136CCNFP#U0 offers identical electrical and functional behavior but requires PCB layout revision due to mechanical differences in the LQFP variant, while the R5F2136ACNFA#U0 reduces flash capacity by 32 KB - enabling lower-cost production without sacrificing peripheral richness or real-time performance.

Availability

R5F2136CCNFA#U0 is available at Aetrix Electronics and suitable for audio equipment control, office equipment motor drive, consumer appliance UI panels, and industrial sensor hubs requiring stable component supply across extended production lifecycles.

Supply support for R5F2136CCNFA#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, and power solutions for automotive, industrial, and IoT markets.

The R8C/36C Group targets cost-sensitive, low-power embedded applications in consumer electronics and office equipment - emphasizing integrated analog peripherals, LIN connectivity, and field-upgradable flash architecture.

FAQ

What is the maximum operating frequency and corresponding supply voltage range for the R5F2136CCNFA#U0?

The R5F2136CCNFA#U0 operates at up to 20 MHz when supplied with 2.7–5.5 V, achieving a minimum instruction execution time of 50 ns. At reduced clock speeds (e.g., 5 MHz), it supports down to 1.8 V, enabling ultra-low-power operation in battery-backed systems while maintaining full peripheral functionality.

Does the R5F2136CCNFA#U0 support hardware LIN communication, and how is it implemented?

Yes, the R5F2136CCNFA#U0 integrates a hardware LIN module compliant with LIN 2.0/2.1 standards. It combines UART0 for serial framing and TimerRA for precise baud rate generation and synchronization - eliminating external transceivers and reducing BOM cost in automotive body control units and appliance networks.

How does the Background Operation (BGO) function work in the R5F2136CCNFA#U0 data flash?

The R5F2136CCNFA#U0 supports BGO on its 10 KB data flash (4 × 1 KB blocks), allowing CPU code execution while erasing or programming flash sectors. This enables seamless firmware updates, parameter storage during runtime, and fail-safe recovery - critical for consumer devices requiring zero-downtime field upgrades.

What are the key differences between the R5F2136CCNFA#U0 and R5F2136CCNFP#U0 variants?

The R5F2136CCNFA#U0 and R5F2136CCNFP#U0 share identical electrical specifications, memory map, and peripheral sets. Their sole difference is the LQFP package: FA uses PLQP0064GA-A (64P6U-A), while FP uses PLQP0064KB-A (64P6Q-A) - differing in land pattern, thermal pad presence, and mechanical dimensions per Renesas package drawings.

Can the R5F2136CCNFA#U0 generate three-phase complementary PWM waveforms, and which timer supports this?

Yes, the R5F2136CCNFA#U0 generates three-phase complementary PWM using Timer RD (16-bit ×2). Its reset-synchronous PWM mode drives six output pins (TRDIOA0–TRDIOD1) with precisely aligned dead-time insertion and automatic waveform inversion - essential for brushless DC motor control in printers and HVAC blowers.