Renesas R5F212G4SDFP#U0

Overview

R5F212G4SDFP from Renesas Electronics is a 16-bit R8C/Tiny Series microcontroller designed for embedded control in cost-sensitive, low-power applications. It integrates 16 KB Flash ROM, 512 bytes RAM, an R8C CPU core with 16×16-bit multiplier, dual UARTs, LIN hardware support, and real-time clock functionality. The device operates from 2.2 V to 5.5 V, supports -40°C to +85°C ambient temperature (D version), and targets metering and appliance control systems.

For engineers reviewing the R5F212G4SDFP datasheet, R5F212G4SDFP pinout, R5F212G4SDFP application, or R5F212G4SDFP equivalent, key selection criteria include its 32-pin LQFP package, 8 MHz/4 MHz system clock options, integrated voltage detection (3 circuits), 27 CMOS I/O ports with programmable pull-up, and hardware LIN compliance via UART0 and Timer RA - all critical for industrial sensor nodes and smart meter firmware design.

Technical Context

The R5F212G4SDFP implements the R8C/Tiny CPU core with 89 fundamental instructions, 1 Mbyte address space, and single-chip operation mode. Its instruction execution time is 125 ns at 8 MHz (VCC = 2.7–5.5 V) and 250 ns at 4 MHz (VCC = 2.2–5.5 V), enabled by on-chip high-speed and low-speed oscillators plus an external 32 kHz crystal interface (XCIN/XCOUT).

Peripheral integration includes Timer RA (8-bit, period/PWM/event counter), Timer RB (8-bit, programmable waveform generation), Timer RE (8-bit real-time clock), Timer RF (16-bit capture/compare), two UARTs (UART0/UART2), and a dedicated LIN module using UART0 and Timer RA. Voltage detection (3 circuits), two comparators, and 27 configurable CMOS I/O ports support robust system monitoring and interface flexibility.

Key Specifications

Pinout & Package

Package: 32-pin LQFP (PLQP0032GB-A, previous code 32P6U-A), 7 mm × 7 mm body, 0.8 mm pitch - compatible with standard surface-mount assembly processes and IPC-7351B footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F212G4SDFP, R5F212G4SNFP offers identical functionality at lower temperature grade, while R5F212G5SDFP provides scalable memory headroom - both retain pin compatibility and identical peripheral register maps, enabling drop-in replacement where thermal or memory margins allow.

Availability

R5F212G4SDFP is available at Aetrix Electronics and suitable for smart metering, home appliance control, and industrial sensor node applications requiring stable component supply across multi-year production cycles.

Supply support for R5F212G4SDFP 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 connectivity solutions for industrial, automotive, and IoT markets.

The R8C/2G Group is part of Renesas' legacy R8C/Tiny MCU family, engineered for cost-optimized, low-power embedded control in metering, white goods, and office equipment - emphasizing integration, reliability, and long-term supply stability.

FAQ

What is the maximum system clock frequency supported by the R5F212G4SDFP?

The R5F212G4SDFP supports a maximum system clock frequency of 8 MHz when operating within the 2.7 V to 5.5 V supply range. At lower voltages (2.2 V to 5.5 V), the maximum clock is reduced to 4 MHz to ensure stable operation. This dual-frequency capability allows designers to optimize performance versus power consumption based on application requirements and power rail constraints.

Does the R5F212G4SDFP include hardware support for LIN communication?

Yes, the R5F212G4SDFP includes dedicated hardware LIN functionality implemented through UART0 and Timer RA. This combination enables full LIN 2.0/2.1 slave-node operation including automatic sync-break detection, checksum calculation, and frame timing - eliminating the need for external LIN transceivers in compliant slave designs.

What is the operating temperature range specified for the R5F212G4SDFP?

The R5F212G4SDFP is rated for an operating ambient temperature range of -40°C to +85°C, designated by the "D" suffix in the part number. This extended temperature grade qualifies the device for industrial and outdoor applications such as electricity meters, HVAC controllers, and factory automation sensors where thermal resilience is mandatory.

How much Flash memory and RAM does the R5F212G4SDFP integrate?

The R5F212G4SDFP integrates 16 KB of on-chip Flash memory for program storage and 512 bytes of RAM for data and stack operations. These memory resources are mapped within the 1 Mbyte address space and support in-system programming with 100 erase/program cycles - sufficient for compact firmware implementing metering algorithms, communication stacks, and real-time control loops.

Which package type is used for the R5F212G4SDFP?

The R5F212G4SDFP uses a 32-pin LQFP package with code PLQP0032GB-A (formerly 32P6U-A), measuring 7 mm × 7 mm with 0.8 mm lead pitch. This RoHS-compliant package supports standard reflow soldering profiles and provides mechanical robustness for high-volume manufacturing in industrial and consumer applications.