Renesas R5F212E2NFP#U0

Overview

R5F212E2NFP from Renesas Electronics is an 8-bit R8C/Tiny Series microcontroller with 8 KB flash ROM, 512 bytes RAM, and a 20 MHz max operating frequency at 3.0–5.5 V supply. It integrates a 10-bit 12-channel ADC, dual 8-bit DACs, two comparators, hardware LIN interface, UART, four timers (including 16-bit Timer RC with PWM), and operates from –20°C to +85°C in consumer-grade applications such as appliance control and audio subsystems.

For engineers reviewing the R5F212E2NFP datasheet, R5F212E2NFP pinout, R5F212E2NFP application, or R5F212E2NFP equivalent, key selection criteria include its 32-pin LQFP package, on-chip debug support, low-power stop mode (0.7 µA), LIN-capable UART0+Timer RA combination, and absence of on-chip data flash-distinguishing it from R8C/2F Group variants.

Technical Context

The R5F212E2NFP implements the R8C/Tiny CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and 1 Mbyte linear address space. Its interrupt system supports 4 external, 13 internal, and 4 software sources across 7 priority levels, with vector table fixed at 0FFDCh–0FFFFh.

Peripheral integration includes Timer RC (16-bit, 4 capture/compare registers, 3-PWM output), UART0 with clock-synchronous serial I/O capability, and a hardware LIN module using UART0 and Timer RA-enabling single-wire automotive subnetwork communication without external transceiver logic.

Key Specifications

Pinout & Package

Package: 32-pin LQFP (PLQP0032GB-A / 32P6U-A), 7 mm × 7 mm, 0.8 mm pitch, exposed pad not specified.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit MCU applications.

Compared with R5F212E2NFP, R5F212E4NFP offers double program memory for feature-rich firmware, while R5F212F2NFP adds data flash for persistent settings-neither requires PCB changes but both demand updated flash programming procedures.

Availability

R5F212E2NFP is available at Aetrix Electronics and suitable for home appliance control, audio subsystems, office equipment motor sequencing, and industrial sensor nodes requiring stable component supply across multi-year production cycles.

Supply support for R5F212E2NFP 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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions.

The R8C/2E Group, including R5F212E2NFP, was designed for cost-sensitive, low-power embedded control in consumer and industrial equipment-emphasizing integration, EMI resilience, and on-chip debug efficiency.

FAQ

What is the maximum operating frequency and supply voltage range for the R5F212E2NFP?

The R5F212E2NFP operates up to 20 MHz when supplied at 3.0–5.5 V, and up to 10 MHz at 2.7–5.5 V. Its minimum instruction execution time is 50 ns under the 20 MHz/3.0–5.5 V condition. The device includes voltage detection circuitry with power-on reset and level-2 voltage monitor functionality to ensure reliable startup and brownout protection.

Does the R5F212E2NFP include on-chip data flash memory?

No, the R5F212E2NFP does not include on-chip data flash memory. It belongs to the R8C/2E Group, which features only program flash ROM (8 KB) and SRAM (512 bytes). Data flash (1 KB × 2 blocks) is exclusive to the R8C/2F Group, such as the R5F212F2NFP. This distinction affects field-upgrade capability and nonvolatile parameter storage.

How is the hardware LIN interface implemented on the R5F212E2NFP?

The R5F212E2NFP implements hardware LIN using UART0 in conjunction with Timer RA. UART0 provides the serial framing and bit timing, while Timer RA generates the precise baud rate and manages sync field detection and checksum calculation per LIN 2.0/2.1 specifications. No external transceiver is required for basic slave-node operation.

What low-power modes does the R5F212E2NFP support, and what are their typical current draws?

The R5F212E2NFP supports wait mode (23 µA @3.0 V, peripheral clocks off) and stop mode (0.7 µA @3.0 V, all clocks halted except reset and watchdog). These modes retain RAM content and allow wake-up via external interrupt, timer match, or LIN bus activity-making them suitable for battery-powered remote sensors and standby controllers.

Is the R5F212E2NFP pin-compatible with other members of the R8C/2E or R8C/2F Groups?

Yes, the R5F212E2NFP shares the same 32-pin LQFP (PLQP0032GB-A) package and identical pin assignment with all R8C/2E and R8C/2F Group devices, including R5F212E4NFP and R5F212F2NFP. Pin functions-including I/O, analog, timer, and serial signals-are fully aligned across the group, enabling drop-in replacement where memory or data flash requirements permit.