Renesas R4F20202RDFD#V0

Overview

R4F20202RDFD#V0 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 supports CAN 2.0B interface via dedicated controller.

For engineers reviewing the R4F20202RDFD#V0 datasheet, R4F20202RDFD#V0 pinout, R4F20202RDFD#V0 application, or R4F20202RDFD#V0 equivalent, key selection criteria include its H8S/20203-compatible instruction set, on-chip debug support via JTAG, 10-bit ADC with 16 channels, and industrial-grade temperature range (–40°C to +85°C) for reliable operation in motor control and factory automation systems.

Technical Context

The R4F20202RDFD#V0 implements the H8S/2000 CPU core with 24-bit address space, supporting both advanced and normal operating modes. It integrates a programmable clock pulse generator (CPG) with PLL, low-voltage detection (LVD), and watchdog timer (WDT) with window function.

Peripheral integration includes three asynchronous serial interfaces (SCI), one I²C bus interface, two 16-bit timer units with PWM output capability, and a data transfer controller (DTC) for autonomous memory-to-peripheral transfers-enabling efficient real-time task handling without CPU intervention.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (12 mm × 12 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R4F20203RDFD#V0, the R4F20202RDFD#V0 provides identical peripheral set and timing performance at lower memory cost; versus R5F212A6SDFP#V0, it retains native CAN support and higher I/O count but consumes more active power-making it better suited for wired industrial nodes with stable power.

Availability

R4F20202RDFD#V0 is available at Aetrix Electronics and suitable for industrial motor control, building automation gateways, energy metering interfaces, and factory floor HMI controllers requiring stable component supply and long-term lifecycle support.

Supply support for R4F20202RDFD#V0 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 manufacturer headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and infrastructure markets.

The H8S/Tiny series-including the R4F20202RDFD#V0-is engineered for cost-sensitive, real-time embedded control in industrial equipment, offering mature toolchain support, deterministic interrupt latency, and robust peripheral integration without sacrificing code density.

FAQ

What is the maximum operating frequency of the R4F20202RDFD#V0?

The R4F20202RDFD#V0 supports a maximum CPU clock frequency of 32 MHz when using the on-chip PLL with an external crystal up to 20 MHz. Its internal clock generator allows configuration of system clocks for peripherals independently-enabling optimized power/performance trade-offs. The R4F20202RDFD#V0 maintains full functionality across its specified industrial temperature range (–40°C to +85°C) at this frequency.

Does the R4F20202RDFD#V0 include a CAN controller?

Yes, the R4F20202RDFD#V0 integrates a full CAN 2.0B-compliant controller supporting both standard and extended frame formats, with eight message objects and programmable acceptance filtering. It requires an external CAN transceiver (e.g., TJA1040 or SN65HVD230) for physical layer compliance. This makes the R4F20202RDFD#V0 suitable for industrial fieldbus nodes where CAN is mandated, unlike many pin-compatible variants in the H8S/202xx family that omit CAN.

What debug interface does the R4F20202RDFD#V0 support?

The R4F20202RDFD#V0 supports IEEE 1149.1-compliant JTAG for on-chip debugging, including halt/resume control, register and memory access, and hardware breakpoints. It does not support SWD or proprietary debug protocols. Renesas' E1/E20 emulators and CS+ IDE fully support the R4F20202RDFD#V0, enabling real-time trace and flash programming without requiring external debug probes beyond standard JTAG cabling.

Is the R4F20202RDFD#V0 RoHS compliant and lead-free?

Yes, the R4F20202RDFD#V0 is RoHS-compliant and lead-free, manufactured per JEDEC J-STD-020 moisture sensitivity level (MSL) 3 requirements. Its 80-pin LQFP package uses matte tin plating and meets EU Directive 2011/65/EU. Certificate of Compliance and material declarations are available from Renesas upon request, and Aetrix Electronics guarantees full traceability for all shipped R4F20202RDFD#V0 units.

What is the Flash endurance and data retention specification for the R4F20202RDFD#V0?

The R4F20202RDFD#V0 specifies 10,000 write/erase cycles for its on-chip Flash memory and 20-year data retention at +85°C ambient temperature. Each 1 KB sector can be erased independently, supporting robust firmware update mechanisms. These values are measured per Renesas' qualification testing and documented in the official H8S/20203 Group Hardware User's Manual (Rev. 3.00, Sep 2010), applicable to the R4F20202RDFD#V0 as a member of that group.