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Renesas R4F20214DFD#G0
- Part No.:
- R4F20214DFD#G0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R4F20214DFD#G0.pdf
- Description:
- 4-8BIT GENERAL MCU H/300H TINY
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R4F20214DFD#G0 from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/Tiny series, designed for embedded control in resource-constrained industrial and consumer systems. It features 128 KB on-chip Flash memory, 8 KB RAM, a 32 MHz max CPU clock, 57 I/O pins, and integrated peripherals including UART, SCI, I²C, PWM timers, and 10-bit ADC with 16 channels.
For engineers reviewing the R4F20214DFD#G0 datasheet, R4F20214DFD#G0 pinout, R4F20214DFD#G0 application, or R4F20214DFD#G0 equivalent, key selection criteria include Flash endurance (10,000 write/erase cycles), operating voltage range (2.7–5.5 V), -40°C to +85°C industrial temperature grade, and compatibility with H8S/20215-series development tools and firmware libraries.
Technical Context
The R4F20214DFD#G0 implements the H8S/2000 CPU core with 24-bit address space, supporting advanced mode operation and 16-bit instruction set compatibility with H8/300H. It integrates a Clock Pulse Generator (CPG) with PLL, low-voltage detection (LVD), and on-chip debug support via JTAG interface.
Peripheral subsystems include a Data Transfer Controller (DTC) for autonomous memory transfers, an Event Link Controller (ELC) for hardware-triggered peripheral synchronization, and dual serial communication interfaces (SCI3 and IIC2) supporting asynchronous and synchronous protocols with baud rate generation up to 2 Mbps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2000 16-bit CISC core with 24-bit addressing and advanced mode support |
| Max Operating Frequency | 32 MHz - enables real-time control loop execution at ≤31.25 ns instruction cycle time |
| Memory | 128 KB Flash (10K erase/write cycles) + 8 KB RAM - sufficient for standalone firmware with interrupt handlers and data buffers |
| Analog Peripherals | 10-bit ADC with 16 input channels and sample-and-hold - supports sensor monitoring in motor control or power supply feedback |
| Digital I/O | 57 programmable I/O pins with CMOS input/output levels and configurable pull-up resistors - suitable for direct interface to switches, LEDs, and logic-level peripherals |
| Communication Interfaces | SCI3 (UART/RS-232 compatible), IIC2 (2-wire master/slave), and SSU (SPI-compatible) - enables multi-protocol connectivity without external transceivers |
| Operating Voltage | 2.7 V to 5.5 V - allows direct integration into 3.3 V or 5 V legacy industrial boards |
| Temperature Range | -40°C to +85°C - qualified for industrial environments per Renesas "Standard" quality grade |
Pinout & Package
R4F20214DFD#G0 is housed in a 80-pin LQFP package (12 mm × 12 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow the H8S/20215 group layout, supporting full peripheral mapping and debug access.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual VCC/VSS pairs ensure stable core and I/O rail decoupling; thermal pad improves heat dissipation under continuous 32 MHz operation |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; requires external RC network for reliable power-on initialization |
| CLK, EXTAL | External clock input | Supports crystal (1–8 MHz) or external clock source; used by CPG to generate system clocks up to 32 MHz |
| PE0–PE7 | Port E I/O | 8-bit bidirectional port with alternate functions including UART TX/RX and timer output compare - enables compact serial interface implementation |
| AD0–AD15 | ADC input channels | 16 dedicated analog inputs mapped to Port A/B/C; internal reference selectable between AVCC and internal 2.5 V bandgap |
| TxD3, RxD3 | SCI3 serial interface | Full-duplex UART signals with programmable baud rate generator - supports RS-232 level shifting via external driver |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Debug Support | JTAG interface with full breakpoint, watchpoint, and memory inspection capability - eliminates need for external emulator during firmware development |
| Low-Power Modes | Four modes (wait, stop, deep stop, and software standby) with wake-up from multiple sources - extends battery life in portable instrumentation |
| Watchdog Timer (WDT) | Independent 16-bit free-running timer with windowed refresh - prevents runaway code in safety-critical control loops |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining without CPU intervention - reduces latency in time-sensitive signal processing (e.g., ADC sampling → DMA transfer → PWM update) |
| Peripheral I/O Mapping | Configurable pin function assignment via PMC registers - enables flexible PCB layout and reuse of I/O resources across firmware variants |
Applications
| Industrial Motor Control | Smart Power Metering |
|---|---|
Use Scenario: Closed-loop speed and current regulation in BLDC fan drivers and small AC induction motors. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms using PWM timers, ADC sampling, and interrupt-driven commutation logic. Use Value: 32 MHz CPU clock and deterministic interrupt latency (<1 µs) enable precise 20 kHz PWM carrier frequency with synchronized current sensing. | Use Scenario: Residential electricity meter with tariff switching, tamper detection, and RS-485 communication. IC Role / Device Role / Timing Role: System controller managing metrology IC interface, LCD display, EEPROM logging, and secure communication stack. Use Value: Integrated 10-bit ADC with 16 channels and hardware averaging supports simultaneous voltage/current/temperature acquisition without external mux. |
| Home Appliance Control Panel | Factory Automation I/O Module |
Use Scenario: User interface and safety monitoring in microwave ovens and washing machines. IC Role / Device Role / Timing Role: Front-end controller handling keypad scan, LED/LCD drive, door interlock logic, and thermal cutoff supervision. Use Value: 57 GPIOs with configurable pull-ups and noise filtering allow direct connection to mechanical switches and indicators - no external logic required. | Use Scenario: DIN-rail mounted digital I/O expansion unit with isolated inputs and relay outputs. IC Role / Device Role / Timing Role: Protocol bridge translating Modbus RTU over RS-485 to local GPIO state management and watchdog-gated output control. Use Value: SCI3 with automatic half-duplex direction control and built-in parity/ECC support ensures robust fieldbus communication in electrically noisy factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R4F20215DFD#G0 | Same package and pinout; adds 16 KB data flash and enhanced DTC with scatter-gather support | Better suited for firmware-over-the-air (FOTA) updates and high-throughput sensor data logging | Select when field-upgradable code storage or burst-mode DMA is required |
| R5F52108ADFP#30 | RX210-based 32-bit MCU with 128 KB Flash, 16 KB RAM, and higher clock (50 MHz); different architecture and pinout | Targets more complex applications requiring floating-point math or USB device interface | Choose only if migrating to RX family toolchain and accepting PCB redesign |
Compared with R4F20214DFD#G0, the R4F20215DFD#G0 offers drop-in upgrade path for enhanced nonvolatile data handling, while the R5F52108ADFP#30 provides architectural scalability at the cost of full hardware and software requalification.
Availability
R4F20214DFD#G0 is available at Aetrix Electronics and suitable for industrial motor control, smart metering, home appliance panels, and factory I/O modules requiring stable component supply and long-term lifecycle support.
Supply support for R4F20214DFD#G0 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 automotive, industrial, and IoT markets.
The H8S/Tiny series - including R4F20214DFD#G0 - was engineered for cost-sensitive, high-reliability embedded control in industrial equipment and consumer appliances where deterministic real-time response and long-lifecycle availability are critical.
FAQ
What is the maximum operating frequency of the R4F20214DFD#G0?
The R4F20214DFD#G0 operates at a maximum CPU clock frequency of 32 MHz, achieved via its on-chip Clock Pulse Generator with PLL. This frequency is supported across the full industrial temperature range (-40°C to +85°C) and 2.7–5.5 V supply voltage. The R4F20214DFD#G0 achieves this performance without external clock multiplication circuitry, simplifying board design while maintaining timing predictability for real-time tasks.
Does the R4F20214DFD#G0 support in-circuit debugging?
Yes, the R4F20214DFD#G0 includes full JTAG-based on-chip debugging support compliant with IEEE 1149.1. It enables non-intrusive breakpoints, real-time register and memory inspection, and flash programming during development. This capability is implemented in silicon and does not require external debug hardware beyond a standard JTAG adapter, making the R4F20214DFD#G0 suitable for rapid firmware iteration in industrial control applications.
What analog peripherals are integrated into the R4F20214DFD#G0?
The R4F20214DFD#G0 integrates a 10-bit successive-approximation ADC with 16 input channels, sample-and-hold circuitry, and programmable conversion triggers. It also includes low-voltage detection (LVD) circuitry with three selectable threshold levels (2.5 V, 2.7 V, 3.0 V) for brown-out protection. These analog features are directly accessible via dedicated pins and require no external components to implement basic sensor interfacing or power monitoring in the R4F20214DFD#G0-based system.
Is the R4F20214DFD#G0 pin-compatible with other H8S/202xx devices?
The R4F20214DFD#G0 shares the same 80-pin LQFP package and pin assignment as the R4F20215DFD#G0 and R4F20235DFD#G0 within the H8S/20215 group. Pin compatibility is confirmed in Renesas Hardware User's Manual Rev. 3.00 (Sep 2010), Section 1.4.1. However, functional differences exist - for example, R4F20214DFD#G0 lacks the data flash present in R4F20215DFD#G0 - so firmware and peripheral initialization must be verified per device.
What development tools support the R4F20214DFD#G0?
The R4F20214DFD#G0 is supported by Renesas' High-performance Embedded Workshop (HEW) IDE with C compiler and debugger, as well as the newer e2 studio platform using the GCC-based Renesas RXv2 toolchain (with H8S legacy support). Evaluation is enabled via the E8/E8a in-circuit emulator and the H8S/20215 Group Starter Kit (YRDKFX20215). All tools recognize the R4F20214DFD#G0 device ID and provide full flash programming and debug visibility for the R4F20214DFD#G0.
R4F20214DFD#G0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- H8® H8S/Tiny
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- H8S/2000
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SSU, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 69
- Program Memory Size:
- 192KB (192K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 12x10b SAR; D/A 2x8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R4F20214DFD#G0 FAQ
1.How can I place an order for R4F20214DFD#G0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R4F20214DFD#G0 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R4F20214DFD#G0 reliable?
The price and inventory of R4F20214DFD#G0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R4F20214DFD#G0 is usually 5 days.
3.What payment methods are accepted for R4F20214DFD#G0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R4F20214DFD#G0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R4F20214DFD#G0?
R4F20214DFD#G0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R4F20214DFD#G0 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R4F20214DFD#G0?
For technical support, including R4F20214DFD#G0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R4F20214DFD#G0 requirements.
6.How does Aetrix verify that R4F20214DFD#G0 is sourced from the original manufacturer or authorized distributors?
All R4F20214DFD#G0 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R4F20214DFD#G0 meets industry standards.
7.What is the process for return or replacement of R4F20214DFD#G0?
All R4F20214DFD#G0 units undergo pre-shipment inspection (PSI). If there is an issue with R4F20214DFD#G0, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R4F20214DFD#G0 part is unused and in its original packaging.
Return procedure for R4F20214DFD#G0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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