Renesas R5F212C8SDFP#V2

Overview

R5F212C8SDFP#V2 from Renesas Electronics is an 80-pin LQFP 16-bit R8C/Tiny Series MCU with 64 KB flash ROM, 3 KB RAM, and -40°C to +85°C industrial temperature rating. It integrates a 20 MHz-capable R8C CPU core with 16×16→32-bit multiplier, 20-channel 10-bit ADC, dual 8-bit DACs, six timer modules (including three-phase PWM-capable Timer RD), UART/SSU/I²C serial interfaces, and hardware LIN support via UART0 and Timer RA - deployed in motor control subsystems of HVAC actuators and industrial PLC I/O modules.

For engineers reviewing the R5F212C8SDFP#V2 datasheet, R5F212C8SDFP#V2 pinout, R5F212C8SDFP#V2 application, or R5F212C8SDFP#V2 equivalent, key selection criteria include its D-version extended temperature range, on-chip debug capability, 0.65 µA stop-mode current, 80-pin LQFP package with 0.5 mm pitch, and absence of on-chip data flash (distinguishing it from R8C/2D Group variants).

Technical Context

The R5F212C8SDFP#V2 implements the R8C/Tiny CPU core with 89 fundamental instructions and single-chip 1 Mbyte address space. Its clock system includes XIN/XOUT (20 MHz max), XCIN/XCOUT (32 kHz real-time clock), and programmable high-speed/low-speed on-chip oscillators with frequency adjustment.

Peripheral integration includes Timer RD with reset-synchronous and complementary PWM modes for three-phase motor drive, LIN physical layer support routed through UART0 and Timer RA, and 71 CMOS I/O ports with selectable pull-up resistors and 8 high-current drive pins - all operating within 2.2–5.5 V supply range and validated for industrial ambient conditions (-40°C to +85°C).

Key Specifications

Pinout & Package

80-pin LQFP package (PLQP0080KB-A) with 0.5 mm pin pitch and 12 mm × 12 mm body footprint. Pin functions include dedicated analog inputs (AN0–AN19), timer I/O (TRDIOx, TRFOxx), serial interface signals (RXD0–2, TXD0–2, SCL/SDA), and 71 general-purpose CMOS I/O ports with programmable direction and pull-up control.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F212C8SDFP#V2, R5F212D8SDFP#V2 adds data flash for nonvolatile parameter storage but shares identical I/O, timers, and communication peripherals; R5F212C7SDFP#V2 reduces memory capacity while preserving all timing-critical features like three-phase PWM and LIN - making both viable alternatives depending on firmware size and data retention requirements.

Availability

R5F212C8SDFP#V2 is available at Aetrix Electronics and suitable for industrial motor control, building automation sensors, PLC I/O modules, and appliance user interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F212C8SDFP#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, power, and SoC solutions for industrial, automotive, and enterprise applications.

The R8C/2C Group, including R5F212C8SDFP#V2, was designed for cost-sensitive industrial control applications requiring robust timing peripherals, analog integration, and extended temperature operation without data flash overhead.

FAQ

What is the maximum operating frequency of the R5F212C8SDFP#V2 MCU?

The R5F212C8SDFP#V2 supports a maximum operating frequency of 20 MHz when powered at 3.0–5.5 V using the XIN clock input. At this frequency, the minimum instruction execution time is 50 ns. Lower frequencies (10 MHz, 5 MHz) are supported down to 2.2 V supply, enabling flexible power/performance trade-offs in battery-powered or low-voltage industrial systems.

Does the R5F212C8SDFP#V2 include on-chip data flash memory?

No, the R5F212C8SDFP#V2 belongs to the R8C/2C Group and does not include on-chip data flash memory. It provides 64 KB of program flash ROM and 3 KB of RAM only. For data flash functionality (1 KB × 2 blocks), the pin-compatible R5F212D8SDFP#V2 from the R8C/2D Group must be selected instead.

Which timer modules in the R5F212C8SDFP#V2 support three-phase motor control?

Timer RD is the dedicated three-phase PWM controller in the R5F212C8SDFP#V2, supporting reset-synchronous PWM, complementary PWM, and PWM3 modes across six output pins (TRDIOA0–TRDIOD1). It enables direct generation of three-phase inverter gate signals with dead-time insertion and fault protection synchronization - critical for BLDC and PMSM motor drives.

What is the purpose of the MODE pin on the R5F212C8SDFP#V2?

The MODE pin on the R5F212C8SDFP#V2 is a configuration input that must be pulled high to VCC via an external resistor during power-up to select single-chip operating mode. This setting enables normal flash execution and peripheral operation; incorrect MODE pin state may prevent proper initialization or cause undefined behavior during reset sequence.

How many analog input channels does the R5F212C8SDFP#V2 support, and what is their resolution?

The R5F212C8SDFP#V2 supports 20 analog input channels (AN0–AN19) with 10-bit resolution and integrated sample-and-hold circuitry. These channels operate across the full 2.2–5.5 V supply range and support sweep mode for sequential conversion - delivering consistent linearity and noise immunity required for precision sensor interfacing in industrial environments.