Renesas R5F212B7SNFA#V2

Overview

R5F212B7SNFA#V2 from Renesas Electronics is a 16-bit R8C/Tiny Series microcontroller in the R8C/2B Group, featuring 48 KB flash program memory, 1 KB × 2 on-chip data flash, 2.5 KB RAM, and operation at up to 20 MHz (VCC = 3.0–5.5 V). It integrates 12-channel 10-bit A/D, dual 8-bit D/A converters, six timer modules (including three-phase PWM-capable Timer RD), LIN hardware interface, and UART/SSU/I²C serial interfaces. It targets embedded control in consumer appliances and office equipment.

For engineers reviewing the R5F212B7SNFA#V2 datasheet, R5F212B7SNFA#V2 pinout, R5F212B7SNFA#V2 application, or R5F212B7SNFA#V2 equivalent, key selection criteria include its 64-pin LQFP package (PLQP0064GA-A), -20°C to +85°C operating range (N version), on-chip data flash endurance (10,000 erase/write cycles), real-time clock (Timer RE), and hardware LIN support using UART0 and Timer RA.

Technical Context

The R5F212B7SNFA#V2 implements the R8C/Tiny CPU core with 89 fundamental instructions and a 16×16→32-bit hardware multiplier for efficient arithmetic. Its clock system includes XIN/XOUT crystal oscillator (up to 20 MHz), high-speed/low-speed on-chip oscillators (with frequency adjustment), and 32 kHz XCIN/XCOUT RTC oscillator - all supported by oscillation stop detection and programmable frequency dividers (1/2/4/8/16).

Peripheral integration centers on deterministic real-time control: Timer RD provides reset-synchronous and complementary PWM for motor drive (6-pin three-phase output), Timer RC supports 3-pin PWM, and the LIN module uses UART0 with Timer RA for baud rate generation and frame timing - enabling compliant slave-node implementation without software bit-banging.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (PLQP0064GA-A), 0.8 mm pin pitch, 14 mm × 14 mm body, exposed pad not specified. RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F212B7SNFA#V2, R5F212B7SNFP#V2 offers identical functionality in a space-saving 10 mm package but demands finer-pitch layout, while R5F212A7SNFA#V2 removes data flash to lower cost - making R5F212B7SNFA#V2 optimal for applications needing both compact 14 mm packaging and embedded nonvolatile parameter storage.

Availability

R5F212B7SNFA#V2 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 and long-term lifecycle support.

Supply support for R5F212B7SNFA#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 consumer markets.

The R8C/2B Group, including R5F212B7SNFA#V2, was designed for cost-sensitive, real-time embedded control in appliances and office equipment - emphasizing integrated peripherals, low power, and robust EMI performance.

FAQ

What is the maximum operating frequency and supply voltage range for R5F212B7SNFA#V2?

R5F212B7SNFA#V2 operates at up to 20 MHz when supplied at 3.0–5.5 V, 10 MHz at 2.7–5.5 V, or 5 MHz at 2.2–5.5 V. These graded frequency/voltage specifications allow flexible power design - for example, running at 10 MHz on 3.0 V reduces dynamic power consumption by ~40% versus 20 MHz at 5.0 V, while maintaining full peripheral functionality in R5F212B7SNFA#V2.

Does R5F212B7SNFA#V2 include on-chip debug capability?

Yes, R5F212B7SNFA#V2 features on-chip debug support compatible with Renesas E8/E8a emulators, enabling full breakpoint, watchpoint, and memory inspection without external JTAG adapters. This capability is factory-enabled and requires no additional licensing - simplifying firmware development and validation directly on R5F212B7SNFA#V2 target hardware.

How many PWM output channels does R5F212B7SNFA#V2 support, and what modes are available?

R5F212B7SNFA#V2 supports up to 6 PWM output channels via Timer RD in complementary PWM mode, plus 3 additional channels via Timer RC. Available modes include reset-synchronous PWM (for synchronized three-phase drive), complementary PWM (with programmable dead time), and standard PWM - all configurable independently per channel in R5F212B7SNFA#V2's timer registers.

What is the endurance rating of the on-chip data flash in R5F212B7SNFA#V2?

The on-chip data flash in R5F212B7SNFA#V2 is rated for 10,000 erase/write cycles per block (1 KB × 2), significantly exceeding the 1,000-cycle endurance of its main program flash. This allows frequent runtime updates of calibration tables or configuration data without compromising program memory longevity - a key reliability feature of R5F212B7SNFA#V2 in field-deployed systems.

Is R5F212B7SNFA#V2 pin-compatible with other R8C/2B Group MCUs?

Yes, R5F212B7SNFA#V2 shares identical pinout and electrical characteristics with all other R8C/2B Group devices in the PLQP0064GA-A package (e.g., R5F212B8SNFA#V2, R5F212BASNFA#V2), differing only in flash size, RAM size, and data flash presence. Firmware and hardware designs targeting R5F212B7SNFA#V2 can be scaled upward without PCB changes - provided the larger-memory variants are used in the same package.