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Renesas R4F20103RDFA#V0
- Part No.:
- R4F20103RDFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R4F20103RDFA#V0.pdf
- Description:
- 4-8BIT GENERAL MCU H/300H TINY
- Quantity:
- Payment:
- Shipping:
Inventory:3,475
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Product details
Overview
R4F20103RDFA#V0 from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/Tiny family, designed for embedded control in resource-constrained industrial and consumer systems. It integrates 64 KB on-chip flash memory, 4 KB RAM, a 24 MHz max CPU clock, 32-pin LQFP package, and peripheral sets including UART, I²C, timer/counters, and 10-bit ADC - enabling real-time motor control and sensor interface applications.
For engineers reviewing the R4F20103RDFA#V0 datasheet, R4F20103RDFA#V0 pinout, R4F20103RDFA#V0 application, or R4F20103RDFA#V0 equivalent, key selection criteria include its 32-pin LQFP footprint, 64 KB flash with EEPROM emulation support, 10-bit ADC with 8 input channels, and compatibility with H8S/2000-series development tools and firmware libraries.
Technical Context
The R4F20103RDFA#V0 implements the H8S/2000 CPU core with 16-bit data bus and 24-bit address space, supporting advanced mode operation with 32 general-purpose registers. It features an on-chip clock pulse generator (CPG) with high-speed on-chip oscillator (HS-OCO), selectable system clocks (fCLK, fCLK/2, fCLK/4), and power-down modes controlled via LPCR1–LPCR3 registers.
Peripheral integration includes a 3-channel 16-bit timer with compare match and PWM output, serial communications interface (SCI3) supporting asynchronous and clock-synchronous modes, and an 8-channel 10-bit successive-approximation ADC with sample-and-hold. Interrupt handling uses a 10-level priority controller (IPRA–IPRJ) and supports both maskable IRQ and non-maskable NMI inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2000 16-bit CISC core with 32 general-purpose registers and 24-bit addressing |
| Max Operating Frequency | 24 MHz system clock - enables deterministic real-time response within 41.7 ns instruction cycle time |
| Memory | 64 KB on-chip flash (programmable in-system), 4 KB RAM - supports firmware updates without external memory |
| Analog Peripheral | 10-bit ADC with 8 input channels and sample-and-hold - suitable for precision temperature and voltage monitoring |
| Timers | Three 16-bit timers with compare match, PWM output, and event counting - usable for motor phase control and pulse generation |
| Communication Interfaces | SCI3 (UART/IrDA/clock-synchronous), IIC2 (2-wire serial), and 8-bit parallel I/O ports - enables sensor hub and actuator interface |
| Package | 32-pin LQFP (7 × 7 mm, 0.8 mm pitch) - compatible with standard SMT assembly and compact PCB layouts |
Pinout & Package
Package: 32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual 5 V supply pins with dedicated analog/digital separation - reduces noise coupling in mixed-signal operation |
| XTAL, EXTAL | Crystal oscillator input/output | Supports external 1–20 MHz crystal or ceramic resonator - enables precise timing for communication baud rates |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up - ensures reliable initialization under brown-out or power-up conditions |
| PA0–PA7 | 8-bit bi-directional port A | Configurable as general I/O or alternate functions (e.g., SCI TX/RX, timer I/O) - provides flexible peripheral mapping |
| AD0–AD7 | ADC input channels | 8 analog input pins shared with port A - allows simultaneous digital I/O and analog sensing with minimal pin count |
| CLK, INT0–INT3 | System clock input and external interrupt inputs | Four independent edge-triggered interrupt pins - supports fast response to encoder pulses or safety signals |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash Memory | 64 KB with 100,000 write/erase cycles and 20-year data retention - eliminates need for external EEPROM in firmware logging |
| Integrated Clock System | High-speed on-chip oscillator (HS-OCO) trimmed to ±1% accuracy at 24 MHz - removes external crystal for cost-sensitive designs |
| Low-Voltage Detection (LVD) | Programmable threshold (4.0 V / 3.5 V / 3.0 V) with interrupt or reset output - prevents erratic operation during brown-out |
| Event Link Controller (ELC) | Hardware-triggered peripheral synchronization - enables timer-triggered ADC sampling without CPU intervention |
| Power Management | Four power-down modes (HALT, STOP, WAIT, and SNOOZE) with wake-up via IRQ/NMI - extends battery life in portable equipment |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop speed regulation of BLDC fans using hall-effect feedback and PWM drive signals. IC Role / Device Role / Timing Role: Real-time execution of commutation logic and current sensing via ADC-triggered timer interrupts. Use Value: Deterministic 24 MHz instruction throughput and ELC-synchronized ADC/timer enable sub-10 µs control loop latency. | Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and CO₂ via I²C sensors and local processing. IC Role / Device Role / Timing Role: Low-power host MCU managing sensor polling, data filtering, and UART-based telemetry reporting. Use Value: STOP-mode power consumption of 1.2 µA and integrated LVD ensure reliable operation across 3.0–5.5 V battery range. |
| Home Appliance UI Panel | Legacy Equipment Retrofit |
Use Scenario: Keypad scanning, LED display driving, and buzzer tone generation in microwave oven control panels. IC Role / Device Role / Timing Role: General-purpose I/O manager with built-in PWM for LED dimming and tone synthesis. Use Value: 32-pin LQFP footprint and 8-bit parallel port A simplify PCB layout while reducing BOM count versus discrete logic solutions. | Use Scenario: Replacing obsolete 8-bit MCUs in factory automation PLC I/O modules with enhanced memory and peripheral set. IC Role / Device Role / Timing Role: Drop-in upgrade path preserving existing 5 V logic levels and pin-compatible peripheral drivers. Use Value: Pin-for-pin compatibility with H8S/20115R and software binary compatibility with H8S/2000 toolchain reduce redesign effort. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R4F20115RDFA#V0 | 128 KB flash, 8 KB RAM, same 32-pin LQFP package and peripheral set | Higher memory capacity supports larger protocol stacks (e.g., Modbus RTU + diagnostics) | Select when firmware size exceeds 64 KB or future scalability is required |
| R4F20203RDFA#V0 | Same core and memory, adds CAN 2.0B controller and 3 additional I/O pins | Enables fieldbus connectivity in industrial networks without external transceiver | Select when native CAN interface is mandatory for device interoperability |
Compared with R4F20103RDFA#V0, R4F20115RDFA#V0 offers double flash/RAM for complex control algorithms, while R4F20203RDFA#V0 adds CAN but requires minor PCB routing changes - making R4F20103RDFA#V0 optimal for cost-sensitive, self-contained control tasks without fieldbus needs.
Availability
R4F20103RDFA#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, home appliance UI panels, and legacy equipment retrofit requiring stable component supply and long-term manufacturability.
Supply support for R4F20103RDFA#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 leader specializing in microcontrollers, analog, and power devices for automotive, industrial, and IoT applications.
The H8S/Tiny series - including R4F20103RDFA#V0 - was designed for cost-effective, low-power embedded control in appliances, industrial equipment, and sensor interfaces where 16-bit performance and peripheral integration outweigh 32-bit complexity.
FAQ
What is the maximum operating frequency of the R4F20103RDFA#V0?
The R4F20103RDFA#V0 supports a maximum system clock frequency of 24 MHz, achieved using either the internal high-speed on-chip oscillator (HS-OCO) or an external crystal/resonator on XTAL/EXTAL pins. This yields a 41.7 ns instruction cycle time for deterministic real-time execution. The SYSCCR register configures clock division, and OSCCSR confirms oscillator stabilization before enabling full-speed operation. R4F20103RDFA#V0 maintains timing compliance across its specified industrial temperature range (−40°C to +85°C).
Does the R4F20103RDFA#V0 include on-chip debug support?
Yes, the R4F20103RDFA#V0 integrates on-chip debugging capability via the H8S/2000-series background debugger mode (BDM), accessible through dedicated BKI and BKD pins. This enables non-intrusive breakpoint setting, register inspection, and flash programming without requiring external JTAG hardware. Debugging is supported by Renesas' HEW (High-performance Embedded Workshop) IDE and compatible third-party tools. R4F20103RDFA#V0 retains full debug functionality even in low-power STOP and WAIT modes.
What ADC resolution and channel count does the R4F20103RDFA#V0 provide?
The R4F20103RDFA#V0 integrates a single 10-bit successive-approximation ADC with 8 input channels (AD0–AD7), multiplexed onto port A pins. It supports sample-and-hold operation, programmable conversion start triggers (software, timer match, or external pin), and result storage in 16-bit ADRES registers. Conversion time is 12.5 µs per channel at 24 MHz, and the ADC operates across the full 0–5 V input range. R4F20103RDFA#V0's ADC meets requirements for precision analog sensing in motor control and environmental monitoring.
Is the R4F20103RDFA#V0 pin-compatible with other H8S/Tiny devices?
R4F20103RDFA#V0 is pin-compatible with R4F20115RDFA#V0 and R4F20203RDFA#V0 in the 32-pin LQFP package, sharing identical pin assignments for power, reset, clock, I/O ports, and core peripherals. However, R4F20203RDFA#V0 adds CAN-related pins not present on R4F20103RDFA#V0, requiring minor PCB modifications if migrating. R4F20103RDFA#V0 maintains full software compatibility with the H8S/2000 toolchain and instruction set across this family.
What power supply voltage range does the R4F20103RDFA#V0 support?
The R4F20103RDFA#V0 operates over a single 4.5 V to 5.5 V supply range, with separate VCC and VSS pins for analog and digital domains to minimize noise coupling. Its low-voltage detection (LVD) circuit supports three programmable thresholds (4.0 V, 3.5 V, 3.0 V) and can generate either an interrupt or a hardware reset. In STOP mode, supply current drops to 1.2 µA at 5 V, enabling battery-powered operation for extended periods. R4F20103RDFA#V0 remains fully functional across its rated voltage range without derating.
R4F20103RDFA#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 55
- 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 8x10b SAR; D/A 2x8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R4F20103RDFA#V0 FAQ
1.How can I place an order for R4F20103RDFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R4F20103RDFA#V0 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 R4F20103RDFA#V0 reliable?
The price and inventory of R4F20103RDFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R4F20103RDFA#V0 is usually 5 days.
3.What payment methods are accepted for R4F20103RDFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R4F20103RDFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R4F20103RDFA#V0?
R4F20103RDFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R4F20103RDFA#V0 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 R4F20103RDFA#V0?
For technical support, including R4F20103RDFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R4F20103RDFA#V0 requirements.
6.How does Aetrix verify that R4F20103RDFA#V0 is sourced from the original manufacturer or authorized distributors?
All R4F20103RDFA#V0 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 R4F20103RDFA#V0 meets industry standards.
7.What is the process for return or replacement of R4F20103RDFA#V0?
All R4F20103RDFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R4F20103RDFA#V0, 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 R4F20103RDFA#V0 part is unused and in its original packaging.
Return procedure for R4F20103RDFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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