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- True IDE Compatibility: Fully compliant with the ATA/IDE standard; functions as a standard hard drive.
- Compact Vertical Form Factor: 44‑pin, 2.00 mm pitch vertical connector for direct motherboard integration.
- Industrial Grade Design: Rated for 0 °C – 70 °C operation; resistant to shock, vibration, and temperature variation.
- NAND Flash Technology: Utilizes high‑density NAND flash for non‑volatile, rewritable storage.
- Plug‑and‑Play Operation: No drivers or special software required; recognized automatically by BIOS.
- Low Power Consumption: Typical read current 21 mA, write 28 mA, sleep 0.3 mA.
- High Reliability: MTBF > 300,000 rewrite cycles @ 25 °C; built‑in ECC, wear‑leveling, and defect‑block management.
- Fast Access Times: Average seek < 0.1 ms; random read 0.3 ms (typ.), sequential read 0.3 ms (typ.).
- Flexible Master/Slave Configuration: Selectable via jumper (JP1) on 44‑pin models.
- Mechanical Flexibility: Plain‑form vertical design for compact embedded systems.
- Silent Operation: No moving parts, eliminating noise and mechanical wear.
- Long Data Retention: Flash data retention ≥ 10 years without external power.
- Compact Vertical Form Factor: 44‑pin, 2.00 mm pitch vertical connector for direct motherboard integration.
- Industrial Grade Design: Rated for 0 °C – 70 °C operation; resistant to shock, vibration, and temperature variation.
- NAND Flash Technology: Utilizes high‑density NAND flash for non‑volatile, rewritable storage.
- Plug‑and‑Play Operation: No drivers or special software required; recognized automatically by BIOS.
- Low Power Consumption: Typical read current 21 mA, write 28 mA, sleep 0.3 mA.
- High Reliability: MTBF > 300,000 rewrite cycles @ 25 °C; built‑in ECC, wear‑leveling, and defect‑block management.
- Fast Access Times: Average seek < 0.1 ms; random read 0.3 ms (typ.), sequential read 0.3 ms (typ.).
- Flexible Master/Slave Configuration: Selectable via jumper (JP1) on 44‑pin models.
- Mechanical Flexibility: Plain‑form vertical design for compact embedded systems.
- Silent Operation: No moving parts, eliminating noise and mechanical wear.
- Long Data Retention: Flash data retention ≥ 10 years without external power.
Comprehensive Product Summary: DOM‑0256M‑44V‑426 (256 MB Disk On Module, 44‑Pin Vertical)
### 1. Product Overview
Product Name: Disk On Module (DOM)
Model Number: DOM‑0256M‑44V‑426
Series: DOM‑2000 / FFD‑2000 Series (Industrial Grade)
Article Number: DOM‑0256M‑44V‑426
Manufacturer: Power Quotation International Co., Ltd. (PQI) – IC Storage Specialist
Product Description:
The DOM‑0256M‑44V‑426 is a 256 MB solid‑state flash storage module designed as a direct IDE (ATA) hard‑disk replacement. It uses a 44‑pin vertical IDE connector and NAND‑type flash memory, providing non‑volatile, low‑power, and vibration‑resistant storage for embedded and industrial systems. The module operates over a standard industrial temperature range (0 °C – 70 °C) and is fully compatible with IDE hard‑disk protocols, supporting plug‑and‑play installation without additional drivers.
### 2. Key Features
- True IDE Compatibility: Fully compliant with the ATA/IDE standard; functions as a standard hard drive.
- Compact Vertical Form Factor: 44‑pin, 2.00 mm pitch vertical connector for direct motherboard integration.
- Industrial Grade Design: Rated for 0 °C – 70 °C operation; resistant to shock, vibration, and temperature variation.
- NAND Flash Technology: Utilizes high‑density NAND flash for non‑volatile, rewritable storage.
- Plug‑and‑Play Operation: No drivers or special software required; recognized automatically by BIOS.
- Low Power Consumption: Typical read current 21 mA, write 28 mA, sleep 0.3 mA.
- High Reliability: MTBF > 300,000 rewrite cycles @ 25 °C; built‑in ECC, wear‑leveling, and defect‑block management.
- Fast Access Times: Average seek < 0.1 ms; random read 0.3 ms (typ.), sequential read 0.3 ms (typ.).
- Flexible Master/Slave Configuration: Selectable via jumper (JP1) on 44‑pin models.
- Mechanical Flexibility: Plain‑form vertical design for compact embedded systems.
- Silent Operation: No moving parts, eliminating noise and mechanical wear.
- Long Data Retention: Flash data retention ≥ 10 years without external power.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|------------------|
| Capacity | 256 MB |
| Flash Type | NAND Flash Memory |
| Interface | 44‑pin IDE (2.00 mm pitch) |
| Form Factor | Vertical DOM (Plain Form) |
| Model Designation | FD256‑426P / FD256‑426PA (with housing) |
| Dimensions | Approx. 33 mm × 51 mm PCB outline |
| Weight | < 20 g (typical) |
| Operating Temperature | 0 °C to +70 °C |
| Storage Temperature | −20 °C to +85 °C |
| Relative Humidity | 5 % – 95 % (non‑condensing) |
| Shock Resistance | 150 G (2.2 ms half‑sine) |
| Vibration Resistance | 15 G p‑p max (operating and non‑operating) |
| MTBF | 300,000 rewrite cycles @ 25 °C |
| Power Supply | DC +3.3 V ± 10 % or DC +5.0 V ± 10 % |
| Power Consumption | Read 21 mA (typ.), Write 28 mA (typ.), Sleep 0.3 mA (typ.) |
| Media Transfer Rate (Read) | 2.5 MB/s (typical) |
| Media Transfer Rate (Write) | 1.2 MB/s (typical) |
| Host Burst Transfer Rate | PIO Mode 2 – 8.3 MB/s (max.) |
| Average Data Transfer Rate | 6 MB/s (typical) |
| Average Seek Time | < 0.1 ms |
| Random Read Time | 0.3 ms (typ.) |
| Random Write Time | 9.67 ms (typ.) |
| Sequential Read Time | 0.3 ms (typ.) |
| Sequential Write Time | 9.71 ms (typ.) |
### 4. Functionality
Operating Principle:
The DOM‑0256M‑44V‑426 functions as a solid‑state IDE drive. It connects directly to a 44‑pin IDE interface, emulating a conventional hard disk at the hardware level. The onboard flash controller manages data storage, wear‑leveling, and error correction transparently to the host system.
Use Cases & Applications:
- Embedded industrial controllers
- Data acquisition and measurement systems
- Telecommunications equipment and routers
- Point‑of‑Sale (POS) and kiosk terminals
- Set‑top boxes and digital signage
- Transportation and vehicle computers
- Military and aerospace embedded systems
- Portable and hand‑held computers
- Network appliances and gateways
Compatibility:
- Fully compatible with IDE/ATA standards (40/44‑pin interfaces)
- Supported by all major operating systems without drivers: Windows 95/98/NT/2000, WinCE, Embedded NT, QNX, Linux, and others.
- BIOS auto‑detection supported (AUTO or User‑Defined CHS mode).
### 5. Components & Accessories
Included Items:
- DOM‑0256M‑44V‑426 module (plain form vertical 44‑pin)
- Jumper for Master/Slave selection (JP1)
- Optional protective housing (model FD256‑426PA)
Optional Accessories:
- 44‑pin IDE extension cable (FDA44C)
- 40‑to‑44‑pin adapter (FDA04C)
- Power adapter cable (for 40‑pin variants only)
Connectors:
- 44‑pin male IDE connector (2.00 mm pitch) with integrated +5 V power pins (41–44).
- Jumper block for Master/Slave configuration (JP1 On = Master, Off = Slave).
### 6. Installation & Setup
Requirements:
- Host system with 44‑pin IDE interface (2.00 mm pitch).
- BIOS support for IDE storage devices ≥ 256 MB.
- Power supply providing +5 V (±10 %) or +3.3 V (±10 %).
Mounting Options:
- Vertical mount directly onto motherboard IDE connector.
- Optional housing for mechanical protection (FDxxx‑426PA).
Configuration Procedure:
1. Power Off System: Ensure the host is powered down and grounded to prevent ESD.
2. Insert Module: Align pin 1 (triangle mark) on the DOM with pin 1 on the IDE socket.
3. Set Master/Slave: Use JP1 jumper (default Master). Remove jumper for Slave mode.
4. Power On and BIOS Setup: Enter BIOS and enable AUTO drive detection or manually enter CHS values (C=979, H=32, S=16 for 256 MB).
5. Partition and Format: Use FDISK and FORMAT utilities under pure DOS to create and format partitions.
6. Ready to Use: After formatting, the DOM appears as a standard IDE drive.
Cautions:
- Always align pin 1 correctly to avoid damage.
- Use both hands to remove the module to prevent connector stress.
- Avoid static discharge by wearing a grounded wrist strap during installation.
### 7. Performance & Capabilities
| Performance Metric | Value (typical) |
|-------------------------|--------------------|
| Read Speed | 2.5 MB/s |
| Write Speed | 1.2 MB/s |
| Host Burst Rate | 8.3 MB/s (PIO Mode 2) |
| Average Transfer Rate | 6 MB/s |
| Seek Time | < 0.1 ms |
| Random Read Time | 0.3 ms |
| Random Write Time | 9.67 ms |
| Sequential Read Time | 0.3 ms |
| Sequential Write Time | 9.71 ms |
| Power Consumption (Read/Write/Sleep) | 21 mA / 28 mA / 0.3 mA |
| MTBF | 300,000 rewrite cycles @ 25 °C |
| ECC Capability | 32 bits per sector hardware correction |
| Defect Management | Automatic bad‑block replacement with reserved blocks |
| Wear Leveling | Dynamic algorithm for uniform cell usage |
| Data Retention | ≥ 10 years without power |
Limitations:
- Capacity limited to 384 MB for 44‑pin DOM series (256 MB model is mid‑range).
- PIO Mode 2 interface limits maximum burst rate to 8.3 MB/s.
- Not hot‑swappable; requires power‑off installation.
### 8. Standards & Compliance
- Interface Standard: ATA/IDE (ANSI X3.221‑1994 ATA‑2 compliant)
- Electrical Interface: 44‑pin IDE (2.00 mm pitch) with integrated power pins
- Signal Compatibility: PIO Mode 0–2 supported
- Environmental Compliance: Industrial temperature range (0 °C – 70 °C)
- Shock & Vibration Compliance: Meets industrial embedded system requirements
- Regulatory Compliance: CE and FCC Class B (typical for PQI industrial modules)
- RoHS Status: Compliant with lead‑free manufacturing standards (when specified)
- Trademark Notice: DiskOnModule™ is a registered trademark of Power Quotation International Co., Ltd.
### 9. Additional Information
Warranty:
Standard manufacturer warranty (typically 1 year limited hardware warranty against defects in materials and workmanship).
Technical Support:
PQI provides technical documentation, installation guides, and engineering support for OEM and industrial customers.
Maintenance:
- No moving parts or mechanical wear; no routine maintenance required.
- Periodic data backup recommended for critical applications.
- Avoid exposure to electrostatic discharge and excessive heat.
Firmware & Updates:
- Firmware embedded in controller manages ECC, wear‑leveling, and defect mapping.
- Updates are not user‑serviceable; factory firmware is optimized for reliability.
Product Lifecycle Status:
- DOM‑0256M‑44V‑426 (256 MB 44‑pin vertical) listed as “On‑going product” in PQI catalog.
- Earlier FDxxx‑426P models (4 MB – 384 MB) remain available for legacy support.
Ordering Information:
| Capacity | Part Number | Form Factor | Housing | Status |
|---------------|----------------|----------------|--------------|-------------|
| 256 MB | FD256‑426P | 44‑pin Vertical Plain | No | On‑going product |
| 256 MB | FD256‑426PA | 44‑pin Vertical Plain | Yes | On‑going product |
Related Models:
- FDxxx‑432LXX (L‑form 44‑pin DOM)
- FDxxx‑439LXX (L‑form with housing)
- FDxxx‑25 (2.5″ IDE Flash Disk form factor)
Manufacturer Contact:
Power Quotation International Co., Ltd.
IC Storage Specialist Division
Taipei, Taiwan
© 2002 Power Quotation International Co., Ltd. All rights reserved.
Specifications subject to change without notice.
### Summary
The DOM‑0256M‑44V‑426 is a robust, industrial‑grade 256 MB Disk On Module engineered for embedded and industrial computing environments requiring compact, reliable, and maintenance‑free storage. Its 44‑pin vertical IDE interface ensures seamless integration with standard IDE controllers, while NAND flash technology provides fast access, low power draw, and high endurance. With built‑in ECC, wear‑leveling, and defect‑block management, the module delivers long‑term data integrity even under continuous operation.
Designed for applications where mechanical hard drives are impractical—such as industrial controllers, kiosks, and portable systems—the DOM‑0256M‑44V‑426 offers a proven, plug‑and‑play solid‑state alternative that meets IDE standards and industrial reliability expectations.
### 1. Product Overview
Product Name: Disk On Module (DOM)
Model Number: DOM‑0256M‑44V‑426
Series: DOM‑2000 / FFD‑2000 Series (Industrial Grade)
Article Number: DOM‑0256M‑44V‑426
Manufacturer: Power Quotation International Co., Ltd. (PQI) – IC Storage Specialist
Product Description:
The DOM‑0256M‑44V‑426 is a 256 MB solid‑state flash storage module designed as a direct IDE (ATA) hard‑disk replacement. It uses a 44‑pin vertical IDE connector and NAND‑type flash memory, providing non‑volatile, low‑power, and vibration‑resistant storage for embedded and industrial systems. The module operates over a standard industrial temperature range (0 °C – 70 °C) and is fully compatible with IDE hard‑disk protocols, supporting plug‑and‑play installation without additional drivers.
### 2. Key Features
- True IDE Compatibility: Fully compliant with the ATA/IDE standard; functions as a standard hard drive.
- Compact Vertical Form Factor: 44‑pin, 2.00 mm pitch vertical connector for direct motherboard integration.
- Industrial Grade Design: Rated for 0 °C – 70 °C operation; resistant to shock, vibration, and temperature variation.
- NAND Flash Technology: Utilizes high‑density NAND flash for non‑volatile, rewritable storage.
- Plug‑and‑Play Operation: No drivers or special software required; recognized automatically by BIOS.
- Low Power Consumption: Typical read current 21 mA, write 28 mA, sleep 0.3 mA.
- High Reliability: MTBF > 300,000 rewrite cycles @ 25 °C; built‑in ECC, wear‑leveling, and defect‑block management.
- Fast Access Times: Average seek < 0.1 ms; random read 0.3 ms (typ.), sequential read 0.3 ms (typ.).
- Flexible Master/Slave Configuration: Selectable via jumper (JP1) on 44‑pin models.
- Mechanical Flexibility: Plain‑form vertical design for compact embedded systems.
- Silent Operation: No moving parts, eliminating noise and mechanical wear.
- Long Data Retention: Flash data retention ≥ 10 years without external power.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|------------------|
| Capacity | 256 MB |
| Flash Type | NAND Flash Memory |
| Interface | 44‑pin IDE (2.00 mm pitch) |
| Form Factor | Vertical DOM (Plain Form) |
| Model Designation | FD256‑426P / FD256‑426PA (with housing) |
| Dimensions | Approx. 33 mm × 51 mm PCB outline |
| Weight | < 20 g (typical) |
| Operating Temperature | 0 °C to +70 °C |
| Storage Temperature | −20 °C to +85 °C |
| Relative Humidity | 5 % – 95 % (non‑condensing) |
| Shock Resistance | 150 G (2.2 ms half‑sine) |
| Vibration Resistance | 15 G p‑p max (operating and non‑operating) |
| MTBF | 300,000 rewrite cycles @ 25 °C |
| Power Supply | DC +3.3 V ± 10 % or DC +5.0 V ± 10 % |
| Power Consumption | Read 21 mA (typ.), Write 28 mA (typ.), Sleep 0.3 mA (typ.) |
| Media Transfer Rate (Read) | 2.5 MB/s (typical) |
| Media Transfer Rate (Write) | 1.2 MB/s (typical) |
| Host Burst Transfer Rate | PIO Mode 2 – 8.3 MB/s (max.) |
| Average Data Transfer Rate | 6 MB/s (typical) |
| Average Seek Time | < 0.1 ms |
| Random Read Time | 0.3 ms (typ.) |
| Random Write Time | 9.67 ms (typ.) |
| Sequential Read Time | 0.3 ms (typ.) |
| Sequential Write Time | 9.71 ms (typ.) |
### 4. Functionality
Operating Principle:
The DOM‑0256M‑44V‑426 functions as a solid‑state IDE drive. It connects directly to a 44‑pin IDE interface, emulating a conventional hard disk at the hardware level. The onboard flash controller manages data storage, wear‑leveling, and error correction transparently to the host system.
Use Cases & Applications:
- Embedded industrial controllers
- Data acquisition and measurement systems
- Telecommunications equipment and routers
- Point‑of‑Sale (POS) and kiosk terminals
- Set‑top boxes and digital signage
- Transportation and vehicle computers
- Military and aerospace embedded systems
- Portable and hand‑held computers
- Network appliances and gateways
Compatibility:
- Fully compatible with IDE/ATA standards (40/44‑pin interfaces)
- Supported by all major operating systems without drivers: Windows 95/98/NT/2000, WinCE, Embedded NT, QNX, Linux, and others.
- BIOS auto‑detection supported (AUTO or User‑Defined CHS mode).
### 5. Components & Accessories
Included Items:
- DOM‑0256M‑44V‑426 module (plain form vertical 44‑pin)
- Jumper for Master/Slave selection (JP1)
- Optional protective housing (model FD256‑426PA)
Optional Accessories:
- 44‑pin IDE extension cable (FDA44C)
- 40‑to‑44‑pin adapter (FDA04C)
- Power adapter cable (for 40‑pin variants only)
Connectors:
- 44‑pin male IDE connector (2.00 mm pitch) with integrated +5 V power pins (41–44).
- Jumper block for Master/Slave configuration (JP1 On = Master, Off = Slave).
### 6. Installation & Setup
Requirements:
- Host system with 44‑pin IDE interface (2.00 mm pitch).
- BIOS support for IDE storage devices ≥ 256 MB.
- Power supply providing +5 V (±10 %) or +3.3 V (±10 %).
Mounting Options:
- Vertical mount directly onto motherboard IDE connector.
- Optional housing for mechanical protection (FDxxx‑426PA).
Configuration Procedure:
1. Power Off System: Ensure the host is powered down and grounded to prevent ESD.
2. Insert Module: Align pin 1 (triangle mark) on the DOM with pin 1 on the IDE socket.
3. Set Master/Slave: Use JP1 jumper (default Master). Remove jumper for Slave mode.
4. Power On and BIOS Setup: Enter BIOS and enable AUTO drive detection or manually enter CHS values (C=979, H=32, S=16 for 256 MB).
5. Partition and Format: Use FDISK and FORMAT utilities under pure DOS to create and format partitions.
6. Ready to Use: After formatting, the DOM appears as a standard IDE drive.
Cautions:
- Always align pin 1 correctly to avoid damage.
- Use both hands to remove the module to prevent connector stress.
- Avoid static discharge by wearing a grounded wrist strap during installation.
### 7. Performance & Capabilities
| Performance Metric | Value (typical) |
|-------------------------|--------------------|
| Read Speed | 2.5 MB/s |
| Write Speed | 1.2 MB/s |
| Host Burst Rate | 8.3 MB/s (PIO Mode 2) |
| Average Transfer Rate | 6 MB/s |
| Seek Time | < 0.1 ms |
| Random Read Time | 0.3 ms |
| Random Write Time | 9.67 ms |
| Sequential Read Time | 0.3 ms |
| Sequential Write Time | 9.71 ms |
| Power Consumption (Read/Write/Sleep) | 21 mA / 28 mA / 0.3 mA |
| MTBF | 300,000 rewrite cycles @ 25 °C |
| ECC Capability | 32 bits per sector hardware correction |
| Defect Management | Automatic bad‑block replacement with reserved blocks |
| Wear Leveling | Dynamic algorithm for uniform cell usage |
| Data Retention | ≥ 10 years without power |
Limitations:
- Capacity limited to 384 MB for 44‑pin DOM series (256 MB model is mid‑range).
- PIO Mode 2 interface limits maximum burst rate to 8.3 MB/s.
- Not hot‑swappable; requires power‑off installation.
### 8. Standards & Compliance
- Interface Standard: ATA/IDE (ANSI X3.221‑1994 ATA‑2 compliant)
- Electrical Interface: 44‑pin IDE (2.00 mm pitch) with integrated power pins
- Signal Compatibility: PIO Mode 0–2 supported
- Environmental Compliance: Industrial temperature range (0 °C – 70 °C)
- Shock & Vibration Compliance: Meets industrial embedded system requirements
- Regulatory Compliance: CE and FCC Class B (typical for PQI industrial modules)
- RoHS Status: Compliant with lead‑free manufacturing standards (when specified)
- Trademark Notice: DiskOnModule™ is a registered trademark of Power Quotation International Co., Ltd.
### 9. Additional Information
Warranty:
Standard manufacturer warranty (typically 1 year limited hardware warranty against defects in materials and workmanship).
Technical Support:
PQI provides technical documentation, installation guides, and engineering support for OEM and industrial customers.
Maintenance:
- No moving parts or mechanical wear; no routine maintenance required.
- Periodic data backup recommended for critical applications.
- Avoid exposure to electrostatic discharge and excessive heat.
Firmware & Updates:
- Firmware embedded in controller manages ECC, wear‑leveling, and defect mapping.
- Updates are not user‑serviceable; factory firmware is optimized for reliability.
Product Lifecycle Status:
- DOM‑0256M‑44V‑426 (256 MB 44‑pin vertical) listed as “On‑going product” in PQI catalog.
- Earlier FDxxx‑426P models (4 MB – 384 MB) remain available for legacy support.
Ordering Information:
| Capacity | Part Number | Form Factor | Housing | Status |
|---------------|----------------|----------------|--------------|-------------|
| 256 MB | FD256‑426P | 44‑pin Vertical Plain | No | On‑going product |
| 256 MB | FD256‑426PA | 44‑pin Vertical Plain | Yes | On‑going product |
Related Models:
- FDxxx‑432LXX (L‑form 44‑pin DOM)
- FDxxx‑439LXX (L‑form with housing)
- FDxxx‑25 (2.5″ IDE Flash Disk form factor)
Manufacturer Contact:
Power Quotation International Co., Ltd.
IC Storage Specialist Division
Taipei, Taiwan
© 2002 Power Quotation International Co., Ltd. All rights reserved.
Specifications subject to change without notice.
### Summary
The DOM‑0256M‑44V‑426 is a robust, industrial‑grade 256 MB Disk On Module engineered for embedded and industrial computing environments requiring compact, reliable, and maintenance‑free storage. Its 44‑pin vertical IDE interface ensures seamless integration with standard IDE controllers, while NAND flash technology provides fast access, low power draw, and high endurance. With built‑in ECC, wear‑leveling, and defect‑block management, the module delivers long‑term data integrity even under continuous operation.
Designed for applications where mechanical hard drives are impractical—such as industrial controllers, kiosks, and portable systems—the DOM‑0256M‑44V‑426 offers a proven, plug‑and‑play solid‑state alternative that meets IDE standards and industrial reliability expectations.
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