Renesas R5F212K4SDFP#X6

Overview

R5F212K4SDFP#X6 from Renesas Electronics is a 16 KB flash, 1.5 KB RAM, 32-pin LQFP microcontroller in the R8C/2K Group, featuring an R8C/Tiny Series CPU core with 16×16→32-bit multiplier, 10-bit ×9-channel A/D converter, dual UARTs, hardware LIN module, and four 8-/16-bit timers (RA–RD) for motor control and embedded sensing. It operates from 2.2 V to 5.5 V across –40°C to +85°C and targets industrial appliance control.

For engineers reviewing the R5F212K4SDFP#X6 datasheet, R5F212K4SDFP#X6 pinout, R5F212K4SDFP#X6 application, or R5F212K4SDFP#X6 equivalent, key selection criteria include its D-version industrial temperature rating, on-chip LIN support tied to UART0 and Timer RA, low-power stop mode (0.7 µA), 32-pin PLQP0032GB-A package compatibility, and absence of on-chip data flash (distinguishing it from R8C/2L variants).

Technical Context

The R5F212K4SDFP#X6 implements the R8C/Tiny CPU core with 89 fundamental instructions, single-chip 1 Mbyte address space, and 50 ns minimum instruction execution time at 20 MHz/3.0–5.5 V. Its peripheral set includes UART0/UART2, hardware LIN (using Timer RA and UART0), and Timer RD supporting three-phase PWM with complementary outputs and sawtooth/triangular wave modulation.

It integrates a voltage detection circuit with power-on reset and VDD monitor (VDD3), supports wait/stop low-power modes, and provides 25 CMOS I/O ports (8 high-current drive), 3 input-only pins, and 9-channel sample-and-hold A/D conversion referenced to internal or external VREF.

Key Specifications

Pinout & Package

Package: 32-pin LQFP (PLQP0032GB-A, formerly 32P6U-A), 7 mm × 7 mm, 0.8 mm pitch, exposed pad not specified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F212K4SNFP, R5F212K4SDFP#X6 delivers extended cold-temperature operation without altering code or layout; versus R5F212L4SDFP, it removes data flash overhead and cost while retaining full real-time control functionality for fixed-function systems.

Availability

R5F212K4SDFP#X6 is available at Aetrix Electronics and suitable for industrial appliance control, sensor node deployment, and office equipment power management requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F212K4SDFP#X6 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 enterprise applications.

The R8C/2K Group, including R5F212K4SDFP#X6, was designed for cost-sensitive, real-time embedded control in consumer and industrial equipment - emphasizing low power, integrated peripherals, and robust noise immunity.

FAQ

What is the maximum operating frequency and supply voltage range for R5F212K4SDFP#X6?

R5F212K4SDFP#X6 supports up to 20 MHz operation at VCC = 3.0–5.5 V, 10 MHz at 2.7–5.5 V, and 5 MHz at 2.2–5.5 V (with A/D functional only above 2.7 V). The device maintains full peripheral operation across this range, including UART, timers, and A/D conversion, making R5F212K4SDFP#X6 suitable for mixed-voltage system designs where supply rails may vary during operation.

Does R5F212K4SDFP#X6 include on-chip data flash memory?

No, R5F212K4SDFP#X6 belongs to the R8C/2K Group and contains only program flash (16 KB) and RAM (1.5 KB); it does not integrate data flash. That feature is exclusive to the R8C/2L Group (e.g., R5F212L4SDFP). R5F212K4SDFP#X6 relies on external EEPROM or FRAM if nonvolatile parameter storage is required beyond program code.

How is the hardware LIN interface implemented on R5F212K4SDFP#X6?

R5F212K4SDFP#X6 implements LIN 2.0/2.1 using UART0 combined with Timer RA for baud rate generation and frame timing. This integrated approach eliminates the need for an external LIN transceiver in slave-node applications. The LIN module shares UART0 pins (TXD0/RXD0) and requires no additional GPIO - all protocol handling is managed in firmware using the on-chip resources of R5F212K4SDFP#X6.

What low-power modes does R5F212K4SDFP#X6 support, and what are their typical current draws?

R5F212K4SDFP#X6 supports wait mode (23 µA @ 3.0 V, low-speed oscillator active) and stop mode (0.7 µA @ 3.0 V, all clocks halted except reset/watchdog). Both modes retain RAM content and allow wake-up via external interrupt or watchdog timeout. These modes make R5F212K4SDFP#X6 appropriate for energy-constrained applications such as battery-operated sensors where duty-cycled operation is essential.

Is R5F212K4SDFP#X6 pin-compatible with other members of the R8C/2K Group?

Yes, all R8C/2K Group devices in the 32-pin LQFP package (PLQP0032GB-A), including R5F212K2SDFP, R5F212K4SNFP, and R5F212K4SDFP#X6, share identical pinouts and electrical characteristics. Firmware and PCB layouts are interchangeable across memory variants (8 KB/16 KB) and temperature grades (N/D), enabling scalable design reuse without hardware revision.