Renesas R5F212BCSDFA#V2

Overview

R5F212BCSDFA#V2 from Renesas Electronics is a 16-bit R8C/Tiny Series microcontroller in the R8C/2B Group, featuring 128 KB flash program memory, 2 KB on-chip data flash (1 KB × 2 blocks), and 7.5 KB RAM. It operates at up to 20 MHz (V_CC = 3.0–5.5 V), supports -40°C to +85°C ambient temperature (D version), and integrates 12-channel 10-bit ADC, dual 8-bit DACs, three UARTs, I²C/SSU, hardware LIN, and six advanced timers including complementary PWM for motor control. It targets embedded control in industrial sensors and appliance subsystems.

For engineers reviewing the R5F212BCSDFA#V2 datasheet, R5F212BCSDFA#V2 pinout, R5F212BCSDFA#V2 application, or R5F212BCSDFA#V2 equivalent, key selection criteria include its D-grade temperature rating, on-chip data flash endurance (10,000 erase/write cycles), 64-pin LQFP package (PLQP0064GA-A), integrated LIN physical layer support, and real-time clock capability via Timer RE - all critical for cost-sensitive, low-power, automotive-adjacent control designs.

Technical Context

The R5F212BCSDFA#V2 implements the R8C/Tiny CPU core with 89 fundamental instructions and a dedicated 16×16→32-bit multiplier for efficient arithmetic. Its clock system includes XIN/XOUT (up to 20 MHz), high-speed/low-speed on-chip oscillators (with frequency adjustment), and 32 kHz XCIN/XCOUT for RTC operation.

Peripheral integration centers on deterministic timing control: Timer RD provides reset-synchronous and complementary PWM for three-phase motor drive; Timer RC and RF support input capture and output compare; and the hardware LIN module uses UART0 and Timer RA for ISO 9141-2/SAE J2602 compliance without CPU overhead.

Key Specifications

Pinout & Package

Package: 64-pin LQFP, 0.8 mm pin pitch, 14 mm × 14 mm body (PLQP0064GA-A). RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F212BCSDFA#V2, R5F212BCSNFA#V2 removes data flash to reduce cost without affecting program execution or peripheral functionality, while R5F212ACSDFA#V2 scales down program memory to 96 KB but retains identical data flash, temperature grade, and motor-control peripherals - offering tiered memory options within the same pin-compatible family.

Availability

R5F212BCSDFA#V2 is available at Aetrix Electronics and suitable for industrial sensor nodes, appliance motor controllers, and automotive body electronics requiring stable component supply, long-term lifecycle support, and guaranteed D-grade temperature compliance.

Supply support for R5F212BCSDFA#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 infrastructure markets.

The R8C/2B Group, including R5F212BCSDFA#V2, was designed for cost-sensitive, low-power embedded control applications requiring integrated analog peripherals, LIN connectivity, and deterministic real-time performance - especially in white goods, industrial automation, and automotive subsystems.

FAQ

What is the maximum operating frequency and supply voltage range for the R5F212BCSDFA#V2?

The R5F212BCSDFA#V2 supports a maximum operating frequency of 20 MHz at V_CC = 3.0–5.5 V. At lower frequencies, it operates down to V_CC = 2.2 V (5 MHz) and 2.7 V (10 MHz). This wide voltage range allows direct connection to unregulated battery or adapter inputs in portable and industrial equipment, and the R5F212BCSDFA#V2 maintains full peripheral functionality across all supported voltage/frequency combinations.

Does the R5F212BCSDFA#V2 include on-chip data flash, and what is its endurance?

Yes, the R5F212BCSDFA#V2 includes 2 KB of on-chip data flash organized as two 1 KB blocks. Its specified endurance is 10,000 erase/write cycles - significantly higher than the 1,000-cycle limit of its program flash - making it suitable for frequent parameter updates, calibration storage, or event logging. This capability is intrinsic to the R5F212BCSDFA#V2 and requires no external memory or wear-leveling firmware.

How does the hardware LIN module in the R5F212BCSDFA#V2 function?

The R5F212BCSDFA#V2 implements a hardware LIN module using UART0 and Timer RA to handle ISO 9141-2/SAE J2602 protocol layers without CPU intervention. It automatically detects sync fields, calculates checksums, and manages frame timing - reducing firmware load and improving reliability. This dedicated implementation is built into the R5F212BCSDFA#V2 silicon and does not require external transceivers beyond standard LIN bus drivers.

What low-power modes are supported by the R5F212BCSDFA#V2, and what are their typical current draws?

The R5F212BCSDFA#V2 supports wait mode (2.1 µA at 3.0 V with 32 kHz XCIN active) and stop mode (0.65 µA at 3.0 V). Both retain RAM content and allow wake-up via interrupts or reset. These ultra-low currents enable battery-powered operation for months in sensor monitoring or remote control applications, and the R5F212BCSDFA#V2 maintains full RTC functionality in stop mode using the 32 kHz crystal oscillator.

Is the R5F212BCSDFA#V2 pin-compatible with other members of the R8C/2B Group?

Yes, the R5F212BCSDFA#V2 is fully pin-compatible with all 64-pin LQFP variants in the R8C/2B Group, including R5F212B7SDFA#V2, R5F212B8SDFA#V2, and R5F212BASDFA#V2. They share identical PLQP0064GA-A packaging, pin assignments, and peripheral mappings - enabling hardware reuse across different memory configurations and temperature grades without PCB redesign. The R5F212BCSDFA#V2 fits seamlessly into existing layouts targeting this package variant.