Renesas R5F212G4SNFP#U0

Overview

R5F212G4SNFP 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, 8-bit timers RA/RB/RE, 16-bit timer RF, voltage detection, comparator, and on-chip oscillators. It operates at up to 8 MHz (2.7–5.5 V) and targets embedded control in electric power meters and consumer appliances.

For engineers reviewing the R5F212G4SNFP datasheet, R5F212G4SNFP pinout, R5F212G4SNFP application, or R5F212G4SNFP equivalent, key selection criteria include its N-version temperature range (−20°C to +85°C), 32-pin LQFP package (PLQP0032GB-A), Flash programming endurance (100 cycles), on-chip debug support, and hardware LIN compliance via UART0 and timer RA.

Technical Context

The R5F212G4SNFP implements the R8C/Tiny CPU core with 89 fundamental instructions, 1 Mbyte address space, and a 16×16→32-bit hardware multiplier for efficient arithmetic. Its memory map allocates internal ROM from 0C000h–0FFFFh and RAM from 00400h–005FFh, with SFRs mapped to 00000h–002FFh.

Peripheral integration includes dual UART channels (UART0 and UART2), a dedicated hardware LIN interface sharing timer RA and UART0, four independent timers (RA, RB, RE, RF), two comparators with external reference input, and three voltage detection circuits supporting power-on reset and brownout monitoring.

Key Specifications

Pinout & Package

32-pin LQFP package (PLQP0032GB-A), 7 mm × 7 mm body, 0.8 mm pitch, exposed pad not present.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F212G4SNFP, R5F212G4SDFP extends temperature tolerance for harsh environments without changing PCB layout, while R5F212G5SNFP increases memory headroom for feature-rich firmware - both retain full pin and code compatibility.

Availability

R5F212G4SNFP is available at Aetrix Electronics and suitable for electric power metering, home appliance control, and office equipment requiring stable component supply across long production lifecycles.

Supply support for R5F212G4SNFP 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/2G Group, including R5F212G4SNFP, was designed for cost-sensitive, low-power embedded control in consumer and industrial equipment where integration, reliability, and EMI robustness are critical.

FAQ

What is the maximum operating frequency of the R5F212G4SNFP and at what supply voltage?

The R5F212G4SNFP operates at a maximum system clock frequency of 8 MHz when supplied with 2.7–5.5 V. At reduced supply voltages down to 2.2 V, the maximum supported frequency is 4 MHz - verified in Table 1.1 of the R8C/2G Group datasheet (Rev.1.00, Apr 04, 2008). This dual-voltage/frequency specification allows flexible power optimization in battery-backed or wide-input-range applications. The R5F212G4SNFP uses an on-chip high-speed oscillator with frequency adjustment capability to maintain timing accuracy across voltage and temperature variations.

Does the R5F212G4SNFP support hardware LIN communication, and how is it implemented?

Yes, the R5F212G4SNFP includes a dedicated hardware LIN module compliant with LIN 2.0/2.1 specifications. It is implemented by combining UART0's serial framing with timer RA's precise baud rate generation and break field detection - no external LIN transceiver is required for basic slave-node operation. This integration is explicitly documented in Section 1.1.2 and Table 1.1 of the R8C/2G Group datasheet. The R5F212G4SNFP uses this capability in electric power meters and appliance control systems where cost and board space are constrained.

What are the memory configuration and programming endurance specifications for the R5F212G4SNFP?

The R5F212G4SNFP integrates 16 KB of on-chip Flash ROM and 512 bytes of RAM, as confirmed in Table 1.2 of the R8C/2G Group datasheet. Flash programming and erasure require VCC = 2.7–5.5 V and support up to 100 write/erase cycles - a defined endurance limit critical for firmware update planning. Security features include ROM code protection and ID code check, while debug capabilities include on-chip debug and in-system flash rewrite. These parameters are fixed for the R5F212G4SNFP and do not vary with operating conditions.

What is the operating temperature range for the R5F212G4SNFP, and how is it indicated in the part number?

The R5F212G4SNFP is rated for an operating ambient temperature range of −20°C to +85°C, designated as the "N version" per Figure 1.1 and Table 1.2 of the R8C/2G Group datasheet. This classification is encoded in the part number suffix "N" before the package code "FP". The alternative D version (e.g., R5F212G4SDFP) extends the lower limit to −40°C. Temperature grade is a factory-set characteristic - the R5F212G4SNFP must not be operated outside its specified N-version range without validation, as performance and reliability are guaranteed only within −20°C to +85°C.

Which package type and pin count does the R5F212G4SNFP use, and is it RoHS-compliant?

The R5F212G4SNFP uses a 32-pin LQFP package with type code PLQP0032GB-A (formerly 32P6U-A), measuring 7 mm × 7 mm with 0.8 mm lead pitch. RoHS compliance is confirmed by Renesas' environmental policy (Note 10 in the document preamble), which mandates adherence to EU RoHS Directive for all products unless otherwise specified - and no exemption or non-compliant status is indicated for the R5F212G4SNFP in the provided documentation. This package supports standard surface-mount assembly and is compatible with IPC-7351B footprint guidelines.