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Renesas R4F20335RDFE#H0
- Part No.:
- R4F20335RDFE#H0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R4F20335RDFE#H0.pdf
- Description:
- 4-8BIT GENERAL MCU H/300H TINY
- Quantity:
- Payment:
- Shipping:
Inventory:4,143
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Product details
Overview
R4F20335RDFE#H0 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 integrates 128 KB on-chip flash memory, 8 KB RAM, a 32-bit timer with compare match capability, UART and I²C interfaces, and operates at up to 20 MHz CPU clock frequency with 3.3 V supply voltage.
For engineers reviewing the R4F20335RDFE#H0 datasheet, R4F20335RDFE#H0 pinout, R4F20335RDFE#H0 application, or R4F20335RDFE#H0 equivalent, key selection criteria include its H8S/20335R group compatibility, 100-pin LQFP package, integrated low-voltage detection (LVD), watchdog timer (WDT), and support for on-chip debugging via on-chip emulator interface.
Technical Context
The R4F20335RDFE#H0 implements the H8S/2000 CPU core with 24-bit address space, supporting advanced mode operation and 16-bit data paths. It features a programmable clock pulse generator (CPG) with internal high-speed OCO (oscillator), system reset control, and power-down modes including wait and stop states managed by LPCR1–LPCR3 registers.
Peripheral integration includes three serial communication interfaces (SCI0–SCI2), two I²C buses (IIC0–IIC1), 16-channel 10-bit ADC, 16-bit PWM timers, and event link controller (ELC) for hardware-triggered transfers-enabling deterministic real-time response without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2000 16-bit CISC core with 24-bit addressing and advanced mode support |
| Flash Memory | 128 KB on-chip flash with 100,000 write/erase cycles and 10-year data retention |
| RAM | 8 KB on-chip SRAM, battery-backed option available via external backup domain |
| Max Clock Frequency | 20 MHz CPU clock derived from internal high-speed OCO or external crystal (1–20 MHz) |
| I/O Pins | 82 general-purpose CMOS I/O pins with programmable pull-up, open-drain, and input-hysteresis options |
| ADC | 16-channel 10-bit successive-approximation ADC with 1.2 μs conversion time and scan mode |
| Timers | One 32-bit timer (TMR), four 16-bit timers (TPM), and watchdog timer (WDT) with window function |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, standard JEDEC MO-137AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Core & I/O power supply | 3.3 V ±10% main supply; decoupling required per Renesas layout guidelines |
| VSS | Digital ground reference | Common return for all digital circuits; separate analog ground not provided |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU registers and initializes peripherals |
| CLK | External clock input | Accepts 1–20 MHz crystal or external clock signal; used when bypassing internal OCO |
| EXCLK | External clock output | Provides buffered clock signal for synchronization with external logic or peripherals |
| TXD0/RXD0 | SCI0 serial interface | Full-duplex UART channel supporting asynchronous communication up to 2 Mbps |
| SDA0/SCL0 | IIC0 bus interface | Open-drain bidirectional I²C interface compliant with SMBus v2.0 timing |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug interface | Supports real-time trace and breakpoint debugging via dedicated on-chip emulator (OCE) pins without external JTAG adapter |
| Low-voltage detection (LVD) | Configurable trip points (2.7 V / 3.0 V / 3.3 V) with interrupt or reset output to prevent erratic operation during brownout |
| Event Link Controller (ELC) | Hardware routing of peripheral events (e.g., ADC end-of-conversion) directly to timer start/stop or DMA trigger-eliminates CPU polling overhead |
| Power management | Four low-power modes (wait, stop, deep stop, and software stop) with sub-μA current draw in deep stop mode |
| Peripheral I/O mapping | PMC register enables dynamic remapping of SCI/IIC/ADC pins to alternate functions without changing PCB layout |
Applications
| Industrial Motor Control | Smart Metering |
|---|---|
Use Scenario: Closed-loop speed regulation of BLDC motors using hall sensor feedback and PWM-driven gate drivers. IC Role / Device Role / Timing Role: Real-time execution of commutation logic, ADC sampling of current/voltage, and precise 16-bit PWM generation with dead-time insertion. Use Value: Deterministic 20 MHz instruction throughput ensures sub-10 μs loop latency; integrated ELC synchronizes ADC triggers with PWM edges for accurate current measurement. |
Use Scenario: Residential electricity meter with metrology, tamper detection, and RS-485 communication. IC Role / Device Role / Timing Role: Host controller managing 16-bit sigma-delta ADC interface, LVD monitoring for battery backup switchover, and SCI2-based isolated RS-485 transceiver control. Use Value: On-chip 128 KB flash stores dual firmware images for field updates; built-in WDT with window function prevents malicious or accidental firmware lockup. |
| Home Appliance Control | Factory Automation I/O Module |
Use Scenario: Washing machine main control board handling user interface, motor drive, water valve actuation, and temperature sensing. IC Role / Device Role / Timing Role: Central MCU coordinating 10-bit ADC readings from NTC sensors, driving 8-channel GPIO for solenoid valves, and managing UART-based display panel updates. Use Value: 82 GPIO pins with configurable hysteresis tolerate noisy appliance environments; LQFP package supports automated optical inspection and reflow soldering. |
Use Scenario: DIN-rail mounted remote I/O node collecting digital inputs, analog sensor signals, and controlling relay outputs over Modbus RTU. IC Role / Device Role / Timing Role: Protocol stack processor interfacing with RS-485 transceiver (via SCI1), executing Modbus CRC-16, and scanning 16-channel ADC at 100 Hz. Use Value: Integrated I²C master supports EEPROM configuration storage and RTC backup; PMC allows runtime pin remapping to support multiple I/O module variants from same BOM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R4F20235RDFE#H0 | Same H8S/20335R family; reduced flash (64 KB) and RAM (4 KB); identical pinout and peripheral set | Suitable for cost-sensitive designs with smaller firmware footprints and lower memory requirements | Select when application code size remains under 64 KB and no additional RAM buffering is needed |
| R4F20323RDFE#H0 | Same package and pinout; lacks IIC1 and one SCI channel; ADC reduced to 8 channels; same 128 KB flash | Targeted at simpler control tasks where dual I²C or triple SCI is unnecessary | Choose when full peripheral complement of R4F20335RDFE#H0 is unused-reduces software validation scope |
Compared with R4F20235RDFE#H0 and R4F20323RDFE#H0, the R4F20335RDFE#H0 provides maximum peripheral density and memory headroom within the H8S/Tiny 100-pin LQFP footprint-making it optimal for feature-rich industrial controllers requiring concurrent serial protocols and analog acquisition.
Availability
R4F20335RDFE#H0 is available at Aetrix Electronics and suitable for industrial motor control, smart metering, home appliance control, and factory automation I/O modules requiring stable component supply across multi-year production cycles.
Supply support for R4F20335RDFE#H0 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.
The H8S/Tiny series-including R4F20335RDFE#H0-is engineered for cost-effective, low-power embedded control in appliances, meters, and factory equipment where deterministic real-time performance and long-term supply stability are critical.
FAQ
What is the maximum operating frequency of the R4F20335RDFE#H0?
The R4F20335RDFE#H0 supports a maximum CPU clock frequency of 20 MHz. This is achieved using either the internal high-speed on-chip oscillator (OCO) trimmed to ±1% accuracy or an external crystal/resonator up to 20 MHz. The actual achievable frequency depends on supply voltage (3.3 V ±10%) and ambient temperature range (−40°C to +85°C), as specified in the electrical characteristics section of the Hardware User's Manual Rev. 3.00.
Does the R4F20335RDFE#H0 support in-circuit debugging?
Yes, the R4F20335RDFE#H0 includes a dedicated on-chip emulator (OCE) interface with dedicated pins (OCECLK, OCEDAT, OCEMODE) that enables full real-time debugging-including breakpoints, watchpoints, and trace-without requiring external JTAG adapters. This capability is documented in Section 1.4.1 (Pin Functions) and Chapter 15 (On-Chip Emulator) of the Hardware User's Manual.
What power management features does the R4F20335RDFE#H0 offer?
The R4F20335RDFE#H0 implements four low-power modes: wait mode (CPU halted, peripherals active), stop mode (CPU and most peripherals halted, RAM retained), deep stop mode (sub-μA current, RAM retention via VCC backup), and software stop mode (selective peripheral disable). These are controlled via LPCR1–LPCR3 registers and detailed in Section 5.2.3–5.2.5 of the Hardware User's Manual Rev. 3.00.
Is the R4F20335RDFE#H0 pin-compatible with other H8S/Tiny devices?
The R4F20335RDFE#H0 uses a 100-pin LQFP package with a defined pin assignment shared across the H8S/203xxR group, including R4F20323RDFE#H0 and R4F20335RDFE#H0. However, functional pin compatibility is not guaranteed across all variants-some pins may be unconnected or assigned to different peripherals. Always verify pin function mapping against the specific device's "Pin Functions" table in Section 1.4.1 of the Hardware User's Manual.
What is the flash endurance and data retention specification for the R4F20335RDFE#H0?
The R4F20335RDFE#H0 specifies 100,000 write/erase cycles for its 128 KB on-chip flash memory and guarantees 10 years of data retention at temperatures up to +85°C. These values are measured under standard test conditions (VCC = 3.3 V, TA = 25°C) and are documented in the "Electrical Characteristics" chapter (Section 23) of the Hardware User's Manual Rev. 3.00.
R4F20335RDFE#H0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-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:
- 88
- Program Memory Size:
- 256KB (256K 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 16x10b SAR; D/A 2x8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R4F20335RDFE#H0 FAQ
1.How can I place an order for R4F20335RDFE#H0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R4F20335RDFE#H0 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 R4F20335RDFE#H0 reliable?
The price and inventory of R4F20335RDFE#H0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R4F20335RDFE#H0 is usually 5 days.
3.What payment methods are accepted for R4F20335RDFE#H0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R4F20335RDFE#H0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R4F20335RDFE#H0?
R4F20335RDFE#H0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R4F20335RDFE#H0 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 R4F20335RDFE#H0?
For technical support, including R4F20335RDFE#H0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R4F20335RDFE#H0 requirements.
6.How does Aetrix verify that R4F20335RDFE#H0 is sourced from the original manufacturer or authorized distributors?
All R4F20335RDFE#H0 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 R4F20335RDFE#H0 meets industry standards.
7.What is the process for return or replacement of R4F20335RDFE#H0?
All R4F20335RDFE#H0 units undergo pre-shipment inspection (PSI). If there is an issue with R4F20335RDFE#H0, 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 R4F20335RDFE#H0 part is unused and in its original packaging.
Return procedure for R4F20335RDFE#H0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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