Renesas R5F212A8SDFP#V2

Overview

R5F212A8SDFP#V2 from Renesas Electronics is a 16-bit R8C/Tiny Series MCU with 64 KB flash ROM, 3 KB RAM, and -40°C to +85°C industrial temperature rating (D version). It integrates a 16×16-bit multiplier, 12-channel 10-bit ADC, dual 8-bit DACs, three UARTs, I²C/SSU, hardware LIN, and six timer modules including PWM-capable Timer RD and real-time clock Timer RE - deployed in motor control subsystems of HVAC controllers.

For engineers reviewing the R5F212A8SDFP#V2 datasheet, R5F212A8SDFP#V2 pinout, R5F212A8SDFP#V2 application, or R5F212A8SDFP#V2 equivalent, key selection criteria include its 64-pin LQFP (PLQP0064KB-A) package, 20 MHz max operating frequency at 3.0–5.5 V, low-power stop mode (0.65 µA), and integrated LIN physical layer support via UART0 and Timer RA.

Technical Context

The R5F212A8SDFP#V2 implements the R8C/Tiny 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), and programmable high-/low-speed on-chip oscillators with frequency adjustment.

Peripheral integration centers on deterministic timing control: Timer RD provides reset-synchronous and complementary PWM for three-phase motor drives; Timer RC and RF support input capture and output compare for encoder interfacing; the LIN module uses UART0 with Timer RA for baud rate generation and sync pulse timing.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (PLQP0064KB-A), 0.5 mm pitch, 10 mm × 10 mm body - compatible with standard reflow profiles and automated optical inspection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F212A8SNFP#V2, the R5F212A8SDFP#V2 offers guaranteed operation down to -40°C for outdoor-rated equipment, while R5F212B8SDFP#V2 trades temperature margin for embedded data retention - making the D-version optimal for thermally demanding industrial motor control where calibration stability matters less than ambient resilience.

Availability

R5F212A8SDFP#V2 is available at Aetrix Electronics and suitable for HVAC control systems, industrial pump monitors, smart appliance UIs, and motor drive subsystems requiring stable component supply across multi-year production cycles.

Supply support for R5F212A8SDFP#V2 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 devices for industrial, automotive, and infrastructure markets.

The R8C/2A Group, including R5F212A8SDFP#V2, was designed for cost-sensitive, real-time embedded control in white goods and industrial equipment - emphasizing integrated peripherals, low power, and robust EMI performance without sacrificing computational throughput.

FAQ

What is the maximum operating frequency of the R5F212A8SDFP#V2 and under what voltage conditions?

The R5F212A8SDFP#V2 operates at up to 20 MHz when supplied at 3.0–5.5 V. At 2.7–5.5 V, the maximum frequency is 10 MHz, and at 2.2–5.5 V, it is limited to 5 MHz. These ratings are specified in the official Renesas datasheet REJ03B0182-0210 and validated across the full -40°C to +85°C temperature range for the D version. The R5F212A8SDFP#V2 uses an on-chip frequency divider to scale the XIN clock for peripheral synchronization.

Does the R5F212A8SDFP#V2 include on-chip data flash memory?

No, the R5F212A8SDFP#V2 belongs to the R8C/2A Group, which does not integrate data flash. Only the R8C/2B Group (e.g., R5F212B8SDFP#V2) includes 1 KB × 2 blocks of on-chip data flash. The R5F212A8SDFP#V2 provides 64 KB of main program flash with 100 write/erase cycles, intended for firmware storage rather than frequent parameter updates.

Which pins on the R5F212A8SDFP#V2 support hardware LIN functionality?

The R5F212A8SDFP#V2 implements hardware LIN using UART0 (P1_4/TXD0 and P1_5/RXD0) combined with Timer RA for sync pulse generation. Pin P1_5 is configurable as RXD0 or TRAIO (Timer RA input capture), enabling precise measurement of the LIN header break field. This dual-function pin assignment is documented in Table 1.7 of the R8C/2A Group datasheet REJ03B0182-0210.

What package type and pin count does the R5F212A8SDFP#V2 use?

The R5F212A8SDFP#V2 uses a 64-pin LQFP package with code PLQP0064KB-A (0.5 mm pitch, 10 mm × 10 mm body). This is confirmed in Table 1.5 (Product List for R8C/2A Group) and Figure 1.4 (Pin Assignment) of the Renesas datasheet REJ03B0182-0210. The suffix "FP" in the part number explicitly denotes this LQFP variant.

How many PWM output channels does the R5F212A8SDFP#V2 support, and which timer module provides them?

The R5F212A8SDFP#V2 supports up to six simultaneous PWM outputs via Timer RD - a dual 16-bit timer with four capture/compare registers. Timer RD's reset-synchronous and complementary PWM modes allow generation of three-phase waveforms with programmable dead time, as detailed in Section 1.1.2 (Table 1.1) of the R8C/2A Group datasheet. This capability is central to its use in BLDC motor control applications.