Renesas R5F21367ANFA#U1

Overview

R5F21367ANFA#U1 from Renesas Electronics is a 16-bit R8C CPU core microcontroller with 48 KB program ROM, 4 KB data flash (BGO-capable), and 4 KB RAM, operating at up to 20 MHz (VCC = 2.7–5.5 V) for real-time control in consumer appliance motor drives and industrial sensor interfaces.

For engineers reviewing the R5F21367ANFA#U1 datasheet, R5F21367ANFA#U1 pinout, R5F21367ANFA#U1 application, or R5F21367ANFA#U1 equivalent, key selection criteria include its 12-channel 10-bit ADC with sample-and-hold, dual 8-bit DAC outputs, LIN hardware module (using Timer RA + UART0), and 64-pin LQFP package with PLQP0064GA-A footprint.

Technical Context

The R5F21367ANFA#U1 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. It supports single-chip mode with 1 Mbyte address space and executes instructions in as little as 50 ns at 20 MHz.

Its peripheral set includes Timer RD (16-bit ×2, 6-pin complementary PWM), Timer RC (16-bit, 3-pin PWM), UART0/1/2 (with I²C and LIN modes), and DTC for autonomous data transfers - enabling deterministic timing-critical firmware without CPU intervention.

Key Specifications

Pinout & Package

Package: 64-pin LQFP, PLQP0064GA-A (64P6U-A), 10 mm × 10 mm, 0.5 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F21367CNFA and R5F21367CDFP, the R5F21367ANFA#U1 uniquely combines D-version temperature rating with the PLQP0064GA-A package - enabling drop-in replacement in designs requiring industrial temp range and this specific footprint, while avoiding re-layout.

Availability

R5F21367ANFA#U1 is available at Aetrix Electronics and suitable for home appliance motor control, industrial sensor signal conditioning, audio equipment power management, and office equipment position feedback requiring stable component supply across production lifecycles.

Supply support for R5F21367ANFA#U1 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 delivering microcontrollers, analog, power, and SoC products for automotive, industrial, and IoT applications.

The R8C/36C Group is designed for cost-sensitive, real-time embedded systems requiring integrated analog peripherals, motor control timers, and communication interfaces - targeting consumer electronics and industrial controls.

FAQ

What is the maximum operating frequency and supply voltage range for the R5F21367ANFA#U1?

The R5F21367ANFA#U1 operates at up to 20 MHz when supplied with VCC = 2.7–5.5 V, achieving a minimum instruction execution time of 50 ns. At lower frequencies (e.g., 5 MHz), it supports VCC down to 1.8 V, enabling flexible power management in battery-backed or low-voltage systems. This dual-voltage/frequency capability is confirmed in Table 1.2 of the R01DS0018EJ0110 datasheet.

Does the R5F21367ANFA#U1 support hardware LIN communication, and how is it implemented?

Yes, the R5F21367ANFA#U1 includes a hardware LIN module implemented using UART0 combined with Timer RA for baud rate generation and synchronization. This meets LIN 2.0/2.1 physical layer requirements without external transceivers. The implementation is documented in Section 1.1.2 and Figure 1.2 of the R01DS0018EJ0110 datasheet, confirming direct support for LIN slave node functionality.

What are the data flash endurance and background operation (BGO) capabilities of the R5F21367ANFA#U1?

The R5F21367ANFA#U1 provides 10,000 write/erase cycles for its 4 KB data flash (organized as four 1 KB blocks) and fully supports Background Operation (BGO), allowing flash programming/erasure to occur concurrently with CPU code execution. This is specified in Table 1.2 and Section 1.1 of the R01DS0018EJ0110 datasheet, enabling robust firmware update and data logging in real-time systems.

How many analog-to-digital converter (ADC) channels and resolution does the R5F21367ANFA#U1 offer?

The R5F21367ANFA#U1 integrates a 10-bit resolution ADC with 12 input channels (AN0–AN11), including sample-and-hold functionality and sweep mode for sequential conversions. This is explicitly stated in Table 1.2 under "A/D Converter" and verified in Figure 1.2's block diagram. The ADC supports both internal and external trigger sources, including ADTRG pin and timer events.

What is the package type and pin count of the R5F21367ANFA#U1, and is it RoHS-compliant?

The R5F21367ANFA#U1 uses a 64-pin LQFP package with code PLQP0064GA-A (also referenced as 64P6U-A), measuring 10 mm × 10 mm with 0.5 mm pitch. Renesas confirms RoHS compliance for all R8C/36C Group devices per their official product change notices and packaging specifications - no leaded variants exist for this part number.