Renesas R4F20223NFD#U0

Overview

R4F20223NFD#U0 from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/Tiny series, designed for embedded control applications requiring integrated peripherals, low-power operation, and deterministic real-time response. It features 128 KB on-chip Flash memory, 8 KB RAM, a 32 MHz max CPU clock, 57 I/O pins, and integrated modules including UART, SCI, I²C, PWM timers, and watchdog timer.

For engineers reviewing the R4F20223NFD#U0 datasheet, R4F20223NFD#U0 pinout, R4F20223NFD#U0 application, or R4F20223NFD#U0 equivalent, this page delivers verified technical context, package mapping, functional alternatives, and supply-chain-ready availability details specific to the R4F20223NFD#U0 - not generic H8S-family summaries.

Technical Context

The R4F20223NFD#U0 implements the H8S/2000 CPU core with 16-bit data bus and 24-bit address space, supporting advanced mode operation with 32-bit register extensions. It integrates a Clock Pulse Generator (CPG) with PLL, programmable system clocks (f_CLK, f_IP, f_BP), and three power-down modes (HALT, STOP, and SLOW) for dynamic power management.

Peripheral integration includes two asynchronous serial interfaces (SCI0, SCI1), one I²C bus interface (IIC2), six 16-bit timer channels (with compare match, input capture, and PWM output), 12-channel 10-bit ADC, and a 16-level priority interrupt controller with vector table support - all mapped into a unified memory space with fixed peripheral register addresses.

Key Specifications

Pinout & Package

R4F20223NFD#U0 is housed in a 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) package with exposed thermal pad. Pin assignments follow Renesas standard H8S/20223 layout per User's Manual Rev.3.00 (Sep 2010), pages 11–14.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit microcontroller applications.

Compared with R4F20223NFD#U0, R4F20215NFD#U0 reduces memory resources without altering I/O or timing capabilities, while R4F20235NFD#U0 extends both memory and communication scope - enabling scalable design across product tiers using identical PCB layout.

Availability

R4F20223NFD#U0 is available at Aetrix Electronics and suitable for industrial motor control, building automation sensor hubs, medical diagnostic equipment, and automotive body control modules requiring stable component supply and long-term lifecycle assurance.

Supply support for R4F20223NFD#U0 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 H8S/Tiny series - including R4F20223NFD#U0 - was engineered for cost-sensitive, resource-constrained embedded control applications demanding high reliability, low power, and mature toolchain support without sacrificing real-time determinism.

FAQ

What is the maximum operating frequency of the R4F20223NFD#U0?

The R4F20223NFD#U0 supports a maximum system clock frequency of 32 MHz, derived from its internal PLL or external crystal oscillator. This allows sustained 32 MIPS performance for real-time control loops. The actual achievable frequency depends on voltage supply (VCC = 4.5–5.5 V) and ambient temperature (−40°C to +85°C), as specified in the H8S/20223 Electrical Characteristics section of the Hardware User's Manual Rev.3.00.

Does the R4F20223NFD#U0 include an on-chip debugger interface?

Yes, the R4F20223NFD#U0 integrates the FINE (Flash INterface Emulator) on-chip debug interface, enabling non-intrusive breakpoint setting, register inspection, and flash programming via a single-wire SWD-like connection. This eliminates the need for external in-circuit emulators and supports full firmware development and field updates directly through the R4F20223NFD#U0's dedicated debug pins.

What power-saving modes does the R4F20223NFD#U0 support?

The R4F20223NFD#U0 provides three hardware-controlled low-power modes: HALT (CPU stopped, peripherals active), STOP (CPU and most peripherals halted, real-time clock running), and SLOW (reduced system clock frequency). These are managed by the Clock Pulse Generator (CPG) and triggered via software writes to LPCR1–LPCR3 registers - allowing dynamic power scaling in battery-powered R4F20223NFD#U0 applications.

Is the R4F20223NFD#U0 pin-compatible with other H8S/202xx devices?

Yes, the R4F20223NFD#U0 shares identical 64-pin LQFP package dimensions, pin count, and pin functions with R4F20215NFD#U0 and R4F20235NFD#U0 per Renesas' H8S/202xx Group Pin Assignments (User's Manual Rev.3.00, p.11). This enables direct PCB footprint reuse across memory- and feature-scaled variants of the same family - though firmware must be validated for peripheral differences like CAN presence.

What is the ADC resolution and channel count on the R4F20223NFD#U0?

The R4F20223NFD#U0 integrates a 12-channel, 10-bit successive-approximation ADC with internal reference voltage and programmable sample-and-hold timing. All 12 channels are multiplexed across dedicated analog input pins (AN0–AN11), and conversion results are stored in 16-bit result registers accessible via DMA or CPU read - supporting sensor monitoring tasks in R4F20223NFD#U0-based designs without external ADC components.