Renesas R5F212G4SDFP#W4

Overview

R5F212G4SDFP from Renesas Electronics is a 16-bit R8C/Tiny Series microcontroller with 16 KB Flash ROM, 512 bytes RAM, and integrated peripherals including UART0/UART2, LIN module, four timers (RA/RB/RE/RF), voltage detection, and comparator circuits. It operates at up to 8 MHz (2.7–5.5 V) or 4 MHz (2.2–5.5 V), supports wait/stop low-power modes, and targets embedded control in electric meters and consumer appliances.

For engineers reviewing the R5F212G4SDFP datasheet, R5F212G4SDFP pinout, R5F212G4SDFP application, or R5F212G4SDFP equivalent, key selection criteria include its -40°C to +85°C industrial temperature grade (D version), 32-pin LQFP package (PLQP0032GB-A), on-chip high-speed oscillator with frequency adjustment, real-time clock capability (Timer RE), and hardware LIN bus support via UART0 and Timer RA.

Technical Context

The R5F212G4SDFP implements the R8C/Tiny CPU core with 89 fundamental instructions, 1 Mbyte address space, and a dedicated 16×16→32-bit multiplier for efficient arithmetic. Its memory map allocates Flash ROM from 0C000h–0FFFFh and RAM from 00400h–005FFh, with SFRs mapped to 00000h–002FFh.

Peripheral integration includes two UART channels (UART0 and UART2), a hardware LIN transceiver using UART0 and Timer RA, four independent timers with capture/compare/PWM/real-time clock functions, dual comparators with external reference input, and three voltage detection circuits supporting power-on reset and brown-out monitoring.

Key Specifications

Pinout & Package

Package: 32-pin LQFP (PLQP0032GB-A), 7 mm × 7 mm body, 0.8 mm lead pitch, exposed pad not specified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F212G4SDFP, R5F212G4SNFP lacks industrial temperature qualification but matches all electrical and functional specs, while R5F212G5SDFP provides 8 KB more Flash and 512 bytes more RAM without altering pinout or peripheral configuration - making it a seamless upgrade path for firmware scalability.

Availability

R5F212G4SDFP is available at Aetrix Electronics and suitable for smart energy metering, home appliance control, and office equipment requiring stable component supply across extended industrial temperature ranges.

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 SoC solutions for industrial, automotive, and IoT markets.

The R8C/2G Group is designed for cost-sensitive, low-power embedded control applications where reliability, integrated peripherals, and industrial temperature operation are critical - particularly in metering, appliances, and office automation.

FAQ

What is the maximum operating frequency of the R5F212G4SDFP and under what voltage conditions?

The R5F212G4SDFP operates at a maximum frequency of 8 MHz when supplied with 2.7–5.5 V, and at 4 MHz when supplied with 2.2–5.5 V. These specifications are defined in the official Renesas datasheet REJ03B0223-0100 and reflect guaranteed timing margins across the full industrial temperature range (-40°C to +85°C) for the D version. The R5F212G4SDFP uses an on-chip high-speed oscillator whose frequency can be fine-tuned via register settings.

Does the R5F212G4SDFP support hardware LIN communication, and how is it implemented?

Yes, the R5F212G4SDFP integrates a hardware LIN module compliant with LIN 2.0, implemented using UART0 for serial framing and Timer RA for baud rate generation and synchronization. This eliminates the need for external LIN transceivers in basic node applications. The R5F212G4SDFP's LIN functionality is enabled through dedicated control registers and shares pins with general-purpose UART and timer functions, requiring proper configuration during initialization.

What low-power modes does the R5F212G4SDFP offer, and what are their typical current draws?

The R5F212G4SDFP supports wait mode (23 µA at 3 V with low-speed oscillator active) and stop mode (0.7 µA at 3 V with BGR trimming disabled). Both modes retain RAM content and allow wake-up via external interrupt or timer event. These values are measured per the Renesas datasheet REJ03B0223-0100 and apply to the D-version R5F212G4SDFP under specified test conditions - enabling multi-year battery life in metering and sensor applications.

How much Flash memory and RAM does the R5F212G4SDFP include, and is the Flash endurance specified?

The R5F212G4SDFP contains 16 KB of on-chip Flash memory and 512 bytes of RAM. Flash endurance is rated for 100 program/erase cycles under standard operating conditions (VCC = 2.7–5.5 V), as documented in the Renesas R8C/2G Group datasheet REJ03B0223-0100. The R5F212G4SDFP also supports on-board flash rewrite and includes ROM code protection and ID code verification to prevent unauthorized access.

What is the package type and pin count of the R5F212G4SDFP, and are there compatible footprints?

The R5F212G4SDFP uses a 32-pin LQFP package designated PLQP0032GB-A (formerly 32P6U-A), with 7 mm × 7 mm body size and 0.8 mm lead pitch. This footprint is shared across the entire R8C/2G Group, including R5F212G5SDFP and R5F212G6SDFP, enabling PCB design reuse when scaling Flash/RAM capacity. The R5F212G4SDFP's pin assignments - including UART, timer, and comparator functions - are fixed per the official pinout diagram in REJ03B0223-0100.