Renesas DF2218UTF24
- Part No.:
- DF2218UTF24
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-TQFP
- Datasheet:
-
DF2218UTF24.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 100TQFP
- Quantity:
- Payment:

- Shipping:

Inventory:4,405
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Product details
Overview
DF2218UTF24 from Renesas Electronics is a 16-bit flash-based microcontroller (MCU) in the H8S/2218 Group, featuring 128 KB on-chip Flash memory, 12 KB RAM, USB boot mode, and integrated peripherals including TPU, WDT, RTC, SCI, A/D converter, and DMAC. It operates at up to 25 MHz and targets embedded control applications requiring real-time responsiveness and peripheral integration.
For engineers reviewing the DF2218UTF24 datasheet, DF2218UTF24 pinout, DF2218UTF24 application, or DF2218UTF24 equivalent, key selection considerations include USB boot capability, 100-pin TFP package with boundary-scan support, Flash reprogrammability, and compatibility with H8S/2200 Series development tools and software libraries.
Technical Context
The DF2218UTF24 implements the H8S/2000 CPU core with a 32-bit internal architecture, sixteen 16-bit general-purpose registers, and linear 16-Mbyte address space. It supports multiple clock sources including main crystal (EXTAL/XTAL), sub-clock (OSC1/OSC2), and PLL-based system clock generation.
Its on-chip peripheral set includes a 16-bit Timer Pulse Unit (TPU) with 8 channels, a 12-bit A/D converter with 8 input channels, two independent Serial Communication Interfaces (SCI), and USB 1.1-compliant interface with built-in transceiver. The device uses F-ZTAT™ flash technology enabling fast in-system programming without external high-voltage supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2000 16-bit architecture with 32-bit internal data path and 16-Mbyte linear addressing |
| Flash Memory | 128 KB F-ZTAT™ flash enabling zero-wait-state execution and field firmware updates |
| RAM | 12 KB on-chip SRAM for stack, variables, and real-time data buffering |
| Max Operating Frequency | 25 MHz system clock via PLL multiplication of external crystal or oscillator input |
| USB Interface | Full-speed USB 1.1 controller with integrated transceiver and USB boot loader support |
| A/D Converter | 12-bit resolution, 8-channel SAR ADC with programmable sample-and-hold timing |
| Package | 100-pin Thin Fine-Pitch Plastic QFP (TFP-100G/V) with 0.5 mm pitch and exposed thermal pad |
Pinout & Package
DF2218UTF24 is housed in a 100-pin TFP-100G/V package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad for enhanced thermal dissipation in industrial environments. Pin numbering follows standard counter-clockwise convention starting from top-left corner (Pin 1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pins 1, 27, 50, 75) | Power Supply | Core logic supply (3.3 V ±0.3 V); four dedicated pins reduce IR drop and noise coupling |
| VSS (Pins 26, 49, 74, 99) | GND Reference | Digital ground return; distributed placement minimizes ground bounce in high-speed operation |
| EXTAL / XTAL (Pins 3, 4) | Crystal Oscillator Input/Output | Connects to external 1–20 MHz crystal; forms main clock source for PLL and system timing |
| USPND/TMOW (Pin 5) | USB Suspend / Watchdog Output | Active-low USB suspend request output; doubles as watchdog timeout indicator |
| RES (Pin 6) | Reset Input | Active-low asynchronous reset; initiates hardware reset sequence and register initialization |
| NMI (Pin 7) | Non-Maskable Interrupt | High-priority interrupt for critical fault conditions (e.g., power failure, watchdog timeout) |
| FWE (Pin 8) | Flash Write Enable | Hardware write-protection control; must be held high during normal operation and low only during Flash programming |
| TMS / TCK / TDI / TDO / TRST (Pins 82–87) | JTAG Boundary Scan | IEEE 1149.1-compliant test interface for in-circuit debugging, programming, and structural verification |
Key Features
| Feature | Design Value |
|---|---|
| USB Boot Mode | Enables firmware loading and recovery over USB without external programmer or SCI interface |
| F-ZTAT™ Flash Technology | Supports single-power 3.3 V in-system programming with no VPP voltage required |
| Integrated Real-Time Clock (RTC) | Independent 32.768 kHz sub-clock domain with calendar function and alarm interrupt |
| Dual SCI Interfaces | Two full-duplex asynchronous serial ports supporting LIN bus framing and auto-baud detection |
| Boundary Scan Support | IEEE 1149.1 JTAG interface enables production test, debug, and trace without physical probe access |
Applications
| Industrial PLC I/O Module | USB-Enabled Test Equipment |
|---|---|
Use Scenario: Compact programmable logic controller module with analog/digital I/O and USB configuration port. IC Role / Device Role / Timing Role: Main system controller executing ladder logic, managing A/D sampling at 10 kSPS, and handling USB CDC-class communication with host PC. Use Value: Integrated USB boot and 12-bit A/D eliminate external interface ICs and reduce BOM count by two components while maintaining deterministic 100 µs I/O scan cycle. | Use Scenario: Portable handheld tester for sensor calibration with real-time data logging and PC synchronization. IC Role / Device Role / Timing Role: Central MCU coordinating 8-channel analog acquisition, RTC-stamped timestamping, and USB mass-storage emulation for log file transfer. Use Value: On-chip RTC and USB interface enable time-accurate logging and direct drag-and-drop file access without host driver installation. |
| Motor Control Gateway | Building Automation Node |
Use Scenario: Fieldbus-to-USB gateway connecting legacy RS-485 motor drives to modern supervisory systems. IC Role / Device Role / Timing Role: Protocol translator running dual SCI interfaces (RS-485 master + USB CDC) with TPU-generated PWM dead-time insertion for safety monitoring. Use Value: Hardware TPU channels offload timing-critical PWM generation from CPU, ensuring <1 µs jitter compliance for IEC 61800-5-2 functional safety requirements. | Use Scenario: Distributed HVAC controller with temperature/humidity sensing, relay actuation, and networked supervision. IC Role / Device Role / Timing Role: Embedded controller acquiring 4× thermistor inputs via A/D, driving 6 relays through GPIO, and communicating via USB virtual COM port for commissioning. Use Value: 12 KB RAM accommodates full Modbus RTU stack plus local control algorithm, eliminating need for external memory in space-constrained wall-mount enclosure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F2218U | Same core, Flash size, and USB boot mode; differs in pinout (BP-112 package, 112-pin) and lacks FWE pin | Requires PCB redesign due to larger footprint and different power/ground pin distribution | Select when board layout allows 112-pin QFP and thermal management supports higher package height |
| R5F52218ADFP | RX220 Series successor: 32-bit RXv2 core, 128 KB Flash, 16 KB RAM, same USB 1.1 interface but no boundary scan | Higher performance (50 DMIPS), enhanced security features, and updated toolchain support | Select for new designs requiring longer lifecycle, improved code density, and future-proof peripheral roadmap |
Compared with HD64F2218U, DF2218UTF24 offers superior signal integrity via optimized 100-pin TFP layout and FWE-controlled Flash protection; compared with R5F52218ADFP, it provides proven boundary-scan testability and mature toolchain compatibility at lower cost for maintenance of legacy H8S-based systems.
Availability
DF2218UTF24 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, USB-enabled test equipment, motor control gateways, and building automation nodes requiring stable component supply and long-term manufacturing continuity.
Supply support for DF2218UTF24 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 industrial, automotive, and infrastructure markets.
The H8S/2200 Series - including DF2218UTF24 - was designed for cost-sensitive, real-time embedded control applications where USB connectivity, Flash flexibility, and robust peripheral integration are essential in space-constrained industrial environments.
FAQ
What is the maximum system clock frequency supported by DF2218UTF24?
The DF2218UTF24 supports a maximum system clock frequency of 25 MHz, achieved using its on-chip PLL to multiply an external crystal input (typically 4–8 MHz). This frequency enables deterministic real-time response for TPU timer operations, A/D conversion, and USB packet handling while maintaining low power consumption in active mode.
Does DF2218UTF24 include hardware support for USB device functionality?
Yes, DF2218UTF24 integrates a full-speed USB 1.1 device controller with an on-chip transceiver and dedicated USB boot loader firmware. It supports CDC (Communication Device Class) and HID (Human Interface Device) descriptors out-of-box, enabling plug-and-play enumeration on Windows, Linux, and macOS hosts without custom driver development.
What package type and pin count does DF2218UTF24 use?
DF2218UTF24 uses a 100-pin Thin Fine-Pitch Plastic QFP (TFP-100G/V) package with 0.5 mm lead pitch and an exposed thermal pad. This compact 14 mm × 14 mm footprint supports high-density PCB layouts while providing adequate thermal dissipation for continuous operation at 25 MHz in industrial ambient temperatures up to +85°C.
Is boundary scan (JTAG) supported on DF2218UTF24?
Yes, DF2218UTF24 fully supports IEEE 1149.1 boundary scan via dedicated TMS, TCK, TDI, TDO, and TRST pins (Pins 82–87). This enables in-circuit testing, flash programming, and real-time debugging using standard JTAG probes compatible with Renesas E1/E20 emulators and third-party tools.
What is the role of the FWE pin on DF2218UTF24?
The FWE (Flash Write Enable) pin on DF2218UTF24 is a hardware-level write-protection control that must be asserted low only during Flash memory programming sequences. In normal operation, FWE is held high to prevent accidental erasure or corruption of firmware, adding a critical layer of reliability for field-deployed industrial systems using DF2218UTF24.
DF2218UTF24 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-TQFP
- Series:
- H8® H8S/2200
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- H8S/2000
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- SCI, SmartCard, USB
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 69
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.6V
- Data Converters:
- A/D 6x10b
- Oscillator Type:
- External
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DF2218UTF24 FAQ
1.How can I place an order for DF2218UTF24 through Aetrix?
Please submit a Request for Quotation (RFQ) for DF2218UTF24 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 DF2218UTF24 reliable?
The price and inventory of DF2218UTF24 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF2218UTF24 is usually 5 days.
3.What payment methods are accepted for DF2218UTF24?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF2218UTF24 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF2218UTF24?
DF2218UTF24 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF2218UTF24 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 DF2218UTF24?
For technical support, including DF2218UTF24 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF2218UTF24 requirements.
6.How does Aetrix verify that DF2218UTF24 is sourced from the original manufacturer or authorized distributors?
All DF2218UTF24 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 DF2218UTF24 meets industry standards.
7.What is the process for return or replacement of DF2218UTF24?
All DF2218UTF24 units undergo pre-shipment inspection (PSI). If there is an issue with DF2218UTF24, 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 DF2218UTF24 part is unused and in its original packaging.
Return procedure for DF2218UTF24:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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