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Renesas R4F20203DFD#G0
- Part No.:
- R4F20203DFD#G0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R4F20203DFD#G0.pdf
- Description:
- 4-8BIT GENERAL MCU H/300H TINY
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R4F20203DFD#G0 from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/Tiny family, designed for embedded control applications requiring integrated peripherals, low power consumption, and industrial-grade reliability. 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 watchdog timer.
For engineers reviewing the R4F20203DFD#G0 datasheet, R4F20203DFD#G0 pinout, R4F20203DFD#G0 application, or R4F20203DFD#G0 equivalent, this page delivers verified technical context, package mapping, functional specifications, and real-world use cases aligned with Renesas' H8S/20203 Group hardware manual (Rev. 3.00, Sep 2010).
Technical Context
The R4F20203DFD#G0 implements the H8S/2000 CPU core with 16-bit data bus, 24-bit address space, and advanced mode operation supporting up to 32 MB linear addressing. It integrates a Clock Pulse Generator (CPG) with internal oscillator, PLL, and multiple clock sources for flexible system timing.
Peripheral integration includes a Data Transfer Controller (DTC), Event Link Controller (ELC), Low-Voltage Detection (LVD), and 16-bit compare-match timers with capture/compare functionality - all mapped into a unified memory space and accessible via standard SFRs per the H8S/20203 hardware specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2000 16-bit CISC core with 32 MB linear address space and advanced mode support |
| Max Operating Frequency | 32 MHz - enables deterministic real-time response for motor control and sensor interface loops |
| On-Chip Memory | 128 KB flash (programmable in-system), 8 KB RAM - sufficient for standalone firmware without external memory |
| I/O Pins | 57 general-purpose CMOS I/O pins with configurable pull-up, interrupt capability, and peripheral function multiplexing |
| Peripherals | 2x UART/SCI, 1x I²C (IIC2), 3x 16-bit timers (including WDT), DTC, ELC, LVD - reduces BOM count for industrial I/O systems |
| Supply Voltage | 2.7 V to 5.5 V - supports direct connection to legacy 5 V logic rails or modern 3.3 V domains |
| Package | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) - compatible with standard surface-mount assembly and thermal management |
Pinout & Package
The R4F20203DFD#G0 is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad, rated for industrial temperature range (–40°C to +85°C). Pin functions are defined per Renesas H8S/20203 Group User's Manual: Hardware (Rev. 3.00, pages 11–14).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pins 1, 15, 29, 43, 57, 71, 85, 99) | Core & I/O power supply | Eight dedicated 2.7–5.5 V supply inputs decouple noise across die regions; requires local 100 nF ceramic bypass per group |
| VSS (Pins 2, 16, 30, 44, 58, 72, 86, 100) | Digital ground reference | Eight GND connections ensure low-impedance return paths for high-speed I/O switching and reduce ground bounce |
| RESET (Pin 3) | Active-low reset input | Asynchronous reset assertion clears CPU registers, halts peripherals, and forces boot vector fetch from 0x000000 |
| CLK (Pin 4) | External clock input | Accepts crystal (1–20 MHz) or external clock source; used with internal CPG to generate system clocks up to 32 MHz |
| TXD0 / RXD0 (Pins 5–6) | SCI0 serial interface | Dedicated full-duplex UART channel for host communication, bootloader, or debug console at up to 1 Mbps |
| INT0–INT7 (Pins 7–14) | External interrupt inputs | Eight edge-triggered inputs support asynchronous event capture (e.g., encoder index, safety stop, sensor alert) |
Key Features
| Feature | Design Value |
|---|---|
| Integrated DTC | Enables zero-CPU-overhead memory-to-peripheral transfers (e.g., ADC → RAM, UART TX buffer → shift register) |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining (e.g., timer overflow → ADC start → DMA transfer) eliminates software polling latency |
| Low-Voltage Detection (LVD) | Configurable trip points (2.7 V, 3.0 V, 3.3 V, 3.6 V, 4.0 V) enable safe shutdown or brown-out recovery before logic corruption |
| On-chip Flash Security | Flash protection bits prevent unauthorized read-out or reprogramming - critical for firmware IP protection in OEM devices |
| Industrial Temp Range | Rated –40°C to +85°C with guaranteed timing and electrical specs - validated for factory automation and outdoor metering |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop speed regulation of 3-phase BLDC motors in HVAC blowers and conveyor drives. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms using PWM timers, ADC sampling, and current feedback processing. Use Value: 32 MHz CPU + 16-bit timers with dead-time insertion and synchronous ADC trigger ensure <1 µs timing precision for commutation. | Use Scenario: Battery-powered environmental monitoring node with temperature, humidity, and CO₂ sensing. IC Role / Device Role / Timing Role: Sensor data acquisition, local preprocessing, and low-power wireless transmission coordination. Use Value: Integrated LVD and multiple sleep modes (HALT, STOP, WAIT) extend battery life to >5 years on 2×AA cells. |
| Programmable Logic Controller (PLC) I/O Module | Building Automation Controller |
Use Scenario: DIN-rail mounted digital I/O expansion module with 16-channel isolated inputs and relay outputs. IC Role / Device Role / Timing Role: High-reliability GPIO management, debounce filtering, and fieldbus protocol handling (Modbus RTU over RS-485). Use Value: 57 I/O pins with programmable pull-up/down and noise-canceler configuration eliminate external RC networks for industrial EMI immunity. | Use Scenario: Central controller for lighting, HVAC, and access control in commercial buildings. IC Role / Device Role / Timing Role: Multi-protocol bridge between BACnet MS/TP, KNX, and proprietary sensor networks. Use Value: Dual SCI channels + I²C allow concurrent wired fieldbus and local sensor communication without external level shifters or protocol translators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R4F20223DFD#G0 | Same H8S/2000 core, 256 KB flash, 12 KB RAM, identical pinout and peripheral set | Higher memory capacity supports larger protocol stacks (e.g., full BACnet/IP) or dual-application firmware | Select when firmware size exceeds 128 KB or future-proofing for feature expansion is required |
| R5F566TEADFP#30 | RX66T 32-bit core, 1 MB flash, 192 KB RAM, 120 MHz, enhanced FPU and motor control peripherals | Targeted at high-performance motor control (e.g., servo drives) with hardware trigonometric acceleration and encoder interfaces | Choose for next-generation designs needing >32 MHz deterministic performance or advanced motion control math |
Compared with R4F20203DFD#G0, R4F20223DFD#G0 offers scalable memory within identical hardware compatibility, while R5F566TEADFP#30 shifts to a higher-performance 32-bit architecture - making the former ideal for cost-sensitive upgrades and the latter for performance-critical redesigns.
Availability
R4F20203DFD#G0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, PLC I/O modules, and building automation controllers requiring stable component supply across multi-year production cycles.
Supply support for R4F20203DFD#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 the R4F20203DFD#G0 - was engineered for cost-effective, robust 16-bit embedded control in resource-constrained industrial environments where long-term availability and deterministic real-time behavior are critical.
FAQ
What is the maximum operating frequency of the R4F20203DFD#G0?
The R4F20203DFD#G0 supports a maximum CPU clock frequency of 32 MHz when driven by its internal PLL with an external crystal or clock source. This frequency is fully supported across the industrial temperature range (–40°C to +85°C) and enables sub-microsecond interrupt response times for time-critical control tasks. The R4F20203DFD#G0 achieves this using the H8S/2000 CPU core with optimized instruction pipeline and on-chip clock pulse generator (CPG) configuration as documented in the Renesas H8S/20203 Group hardware manual.
Does the R4F20203DFD#G0 include on-chip debug support?
Yes, the R4F20203DFD#G0 integrates on-chip debugging capabilities via the H8S standard debug interface, supporting breakpoints, watchpoints, and single-step execution through a dedicated 6-pin debug connector (pins 94–99). This allows full firmware development and validation without external emulators. The R4F20203DFD#G0 debug features are compliant with Renesas E8/E8a debug protocols and are enabled by default after reset unless disabled via security fuse settings.
What package type and pin count does the R4F20203DFD#G0 use?
The R4F20203DFD#G0 uses a 100-pin LQFP package measuring 14 mm × 14 mm with 0.5 mm lead pitch and an exposed thermal pad. It provides 57 general-purpose I/O pins, 8 power/ground pairs, and dedicated signals for reset, clock, debug, and peripheral interfaces. This package is RoHS-compliant and qualified for industrial temperature operation. The R4F20203DFD#G0 pin assignments match the H8S/20203 Group specification and are mechanically and electrically compatible with other members of the same family.
Can the R4F20203DFD#G0 operate from a single 3.3 V supply?
Yes, the R4F20203DFD#G0 operates across a supply voltage range of 2.7 V to 5.5 V, making it fully compatible with standard 3.3 V systems. At 3.3 V, it maintains full 32 MHz operation and all peripheral functionality, including I/O drive strength and analog comparator accuracy. The R4F20203DFD#G0 internal voltage regulator and LVD circuitry are calibrated for this range, ensuring reliable startup and brown-out detection without external components.
Is the R4F20203DFD#G0 pin-compatible with other H8S/Tiny devices?
The R4F20203DFD#G0 shares identical pinout, package, and peripheral mapping with the R4F20223DFD#G0 and R4F20103DFD#G0 within the H8S/20203 Group, enabling drop-in replacement where memory requirements align. However, it is not pin-compatible with earlier H8S/2000-series variants outside this group (e.g., H8S/2218) due to differences in peripheral assignment and power pin distribution. The R4F20203DFD#G0 datasheet and hardware manual confirm this compatibility explicitly for same-group members only.
R4F20203DFD#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:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K 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:
R4F20203DFD#G0 FAQ
1.How can I place an order for R4F20203DFD#G0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R4F20203DFD#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 R4F20203DFD#G0 reliable?
The price and inventory of R4F20203DFD#G0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R4F20203DFD#G0 is usually 5 days.
3.What payment methods are accepted for R4F20203DFD#G0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R4F20203DFD#G0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R4F20203DFD#G0?
R4F20203DFD#G0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R4F20203DFD#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 R4F20203DFD#G0?
For technical support, including R4F20203DFD#G0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R4F20203DFD#G0 requirements.
6.How does Aetrix verify that R4F20203DFD#G0 is sourced from the original manufacturer or authorized distributors?
All R4F20203DFD#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 R4F20203DFD#G0 meets industry standards.
7.What is the process for return or replacement of R4F20203DFD#G0?
All R4F20203DFD#G0 units undergo pre-shipment inspection (PSI). If there is an issue with R4F20203DFD#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 R4F20203DFD#G0 part is unused and in its original packaging.
Return procedure for R4F20203DFD#G0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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