Renesas R5F21356MNFP#30

Overview

R5F21356MNFP#30 from Renesas Electronics is a 16-bit R8C CPU core MCU with 32 KB flash program ROM, 2.5 KB RAM, and 4 KB data flash (1 KB × 4 blocks) supporting background operation (BGO). It operates at up to 20 MHz (VCC = 2.7–5.5 V), integrates dual 10-bit A/D converters (12 channels), dual 8-bit D/A outputs, LIN hardware module, and six timer units including complementary PWM-capable Timer RD - used in motor control subsystems of home appliance mainboards.

For engineers reviewing the R5F21356MNFP#30 datasheet, R5F21356MNFP#30 pinout, R5F21356MNFP#30 application, or R5F21356MNFP#30 equivalent, key selection criteria include its 52-pin LQFP package, -20°C to +85°C temperature grade (N version), integrated LIN transceiver support via UART0+Timer RA, and BGO-enabled field-upgradable data flash for parameter storage.

Technical Context

The R5F21356MNFP#30 implements the R8C CPU core with 89 fundamental instructions and a dedicated 16×16→32-bit multiplier for real-time signal processing. Its memory map allocates 32 KB program ROM (08000h–0FFFFh), 2.5 KB RAM (00400h–00DFFh), and 4 KB data flash (03000h–03FFFh) with erase endurance of 10,000 cycles.

Peripheral integration includes three UART/serial interfaces (UART0–2), I²C-bus/SSU shared channel, 12-channel 10-bit A/D converter with sample-and-hold and sweep mode, two 8-bit D/A converters, two comparator units, and four independent timer modules (RA–RD) plus real-time clock Timer RE - enabling coordinated motor drive, sensor acquisition, and communication in single-chip embedded control.

Key Specifications

Pinout & Package

52-pin LQFP package (PLQP0052JA-A), 10 mm × 10 mm body, 0.65 mm pin pitch, exposed pad not present.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F21356MDFP, the R5F21356MNFP#30 offers lower-cost qualification for commercial temperature ranges; compared with R5F21355MNFP, it delivers 8 KB additional flash for enhanced feature sets and larger calibration datasets - critical for adaptive motor control tuning.

Availability

R5F21356MNFP#30 is available at Aetrix Electronics and suitable for home appliance motor control, office equipment power management, consumer audio signal processing, and industrial sensor hub interface applications requiring stable component supply across long production lifecycles.

Supply support for R5F21356MNFP#30 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/35M Group, including R5F21356MNFP#30, was designed for cost-effective, low-power embedded control in consumer and industrial equipment - emphasizing integrated analog peripherals, motor timing resources, and field-upgradable flash.

FAQ

What is the maximum operating frequency and supply voltage range for the R5F21356MNFP#30?

The R5F21356MNFP#30 operates at up to 20 MHz when supplied with 2.7–5.5 V, and supports reduced-frequency operation down to 5 MHz at 1.8 V minimum supply. This dual-voltage capability allows direct interfacing with both 3.3 V and 5 V system rails without external regulators, and enables low-power modes such as wait (3.5 µA) and stop (2.0 µA) at 3.0 V with 32 kHz sub-clock.

Does the R5F21356MNFP#30 support hardware LIN communication, and how is it implemented?

Yes, the R5F21356MNFP#30 includes a hardware LIN module implemented using UART0 combined with Timer RA for baud rate generation and frame timing. This configuration complies with ISO 9141-2 and LIN 2.x specifications, eliminating the need for an external LIN transceiver in basic node applications such as appliance door lock controllers or fan speed modules.

How many A/D and D/A channels does the R5F21356MNFP#30 provide, and what are their resolutions?

The R5F21356MNFP#30 integrates a 10-bit A/D converter with 12 input channels (AN0–AN11) and two independent 8-bit D/A converters (DA0, DA1). The A/D unit supports sample-and-hold and sweep mode for sequential multi-channel acquisition, while the D/A outputs deliver stable analog references for sensor biasing or actuator control without external DAC ICs.

What packaging and temperature grade does the R5F21356MNFP#30 use?

The R5F21356MNFP#30 is housed in a 52-pin LQFP package (PLQP0052JA-A, 10 mm × 10 mm, 0.65 mm pitch) and rated for commercial temperature operation from -20°C to +85°C (N version). This package supports standard reflow soldering and provides sufficient I/O density for motor control and sensor interface in compact appliance mainboards.

Can the R5F21356MNFP#30 perform flash programming during application execution?

Yes, the R5F21356MNFP#30 supports background operation (BGO) on its 4 KB data flash (1 KB × 4 blocks), allowing erase and write operations to proceed concurrently with program execution from main ROM. This enables runtime parameter updates - such as motor calibration coefficients or user preferences - without halting system operation or requiring external nonvolatile memory.