Comprehensive Product Summary – PQI DiskOnModule DJ Series, Model DOM‑0128M‑40V‑019

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### 1. Product Overview

Product Name: DiskOnModule™ (DOM)
Model Number: DOM‑0128M‑40V‑019
Series: DJ Series (Industrial Grade)
Article Number: DOM‑0128M‑40V‑019
Manufacturer: Power Quotient International Co., Ltd. (PQI) – IC Storage Specialist

The PQI DiskOnModule DJ Series is a solid‑state flash storage device designed as a direct IDE (ATA) interface replacement for conventional hard disk drives. The DOM‑0128M‑40V‑019 model provides 128 MB of non‑volatile NAND flash storage in a 40‑pin vertical form factor, optimized for embedded, industrial, and portable computing systems requiring compact, low‑power, and vibration‑resistant data storage.

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### 2. Key Features

- True IDE Compatibility: Fully compliant with the 40‑pin IDE/ATA interface standard, functioning as a plug‑and‑play solid‑state hard drive replacement.
- Non‑Volatile NAND Flash Memory: Utilizes high‑density NAND flash technology with a minimum 10‑year data retention period without external power.
- Industrial‑Grade Reliability: Rated for 0 °C to +70 °C operating temperature and –40 °C to +85 °C non‑operating storage, ensuring stable performance in harsh environments.
- High Performance:
- Sequential read speed: 4.3 MB/s
- Sequential write speed: 3.3 MB/s
- Interface burst rate (PIO Mode 2): 8.3 MB/s
- Low Power Consumption:
- Read: 30 mA (typ.)
- Write: 28 mA (typ.)
- Standby: 3 mA (typ.)
- Error Correction and Data Integrity: Built‑in ECC (22 bits per 256 bytes) and advanced flash management algorithms for wear leveling and bad‑block replacement.
- High MTBF: Mean Time Between Failures of 1,000,000 hours, ensuring long‑term reliability.
- Compact, Cable‑Free Design: Directly plugs into the motherboard IDE connector, eliminating the need for ribbon cables or additional mounting hardware.
- Broad OS Compatibility: Operates transparently with standard BIOS and operating systems (DOS, Windows, Linux, QNX, embedded OSs) without special drivers.
- Shock and Vibration Resistant: No moving parts; rated for 1000 G operational and non‑operational shock.

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### 3. Technical Specifications

Capacity: 128 MB (formatted)
Interface: 40‑pin IDE (2.54 mm pitch), vertical orientation
Flash Type: NAND‑type solid‑state memory
Sector Size: 512 bytes per sector
CHS Parameters (128 MB): 500 cylinders × 16 heads × 32 sectors = 256,000 sectors

Performance Metrics:
- Media Transfer Rate (Read): 4.3 MB/s
- Media Transfer Rate (Write): 3.3 MB/s
- Host Burst Rate (PIO Mode 2): 8.3 MB/s
- 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.)

Power Requirements:
- Supply Voltage: +3.3 V ± 5 % or +5.0 V ± 10 %
- Power Consumption:
- Read: 30 mA (typ.)
- Write: 28 mA (typ.)
- Standby: 3 mA (typ.)

Environmental Ratings:
- Operating Temperature: 0 °C – +70 °C (industrial grade)
- Non‑Operating Temperature: –40 °C – +85 °C
- Relative Humidity: 8 % – 95 % (non‑condensing)
- Shock Resistance: 1000 G (operating and non‑operating)

Reliability:
- MTBF: 1,000,000 hours
- ECC: 22 bits per 256 bytes
- Data Retention: ≥ 10 years

Physical Dimensions:
- Width: 19 mm (PCB width code “019”)
- Height: approx. 35 mm (for 48–256 MB capacities)
- Length: approx. 55 mm
- Weight: < 20 g
- Form Factor: 40‑pin vertical plug‑in module

Materials:
- PCB: FR‑4 industrial‑grade substrate
- Connector: 40‑pin male IDE header (2.54 mm pitch)
- Housing: Plain‑form (no external casing)

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### 4. Functionality

The DOM‑0128M‑40V‑019 operates as a solid‑state IDE hard drive emulator. It connects directly to a host system’s 40‑pin IDE interface and is recognized by the BIOS as a standard ATA device. Data is stored in NAND flash memory managed by an integrated controller that handles wear leveling, bad‑block management, and ECC correction transparently to the host.

Typical Use Cases:
- Embedded industrial controllers and PLCs
- Single‑board computers (SBCs)
- Network appliances, routers, and gateways
- Kiosks, POS terminals, and vending systems
- Transportation and automotive electronics
- Military and avionics data logging
- Legacy PC systems requiring solid‑state IDE storage

Compatibility:
- Fully compatible with IDE/ATA‑33 interface standards
- Supports PIO Mode 0–2
- Works with BIOS auto‑detection or manual CHS configuration
- Compatible with DOS, Windows 95/98/NT/2000, Linux, QNX, and embedded OSs

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### 5. Components & Accessories

Included Components:
- DOM‑0128M‑40V‑019 module (40‑pin vertical)
- 4‑pin power cable (for +5 V supply if IDE pin 20 is not powered)
- Installation and configuration guide

Optional Accessories:
- 40‑pin to 44‑pin IDE adapter cables
- Power adapter harnesses for systems without pin 20 VCC
- Mounting brackets for vertical or horizontal orientation

Connectors:
- 40‑pin male IDE connector (2.54 mm pitch)
- 4‑pin power connector (Molex‑type)
- Optional jumper or ring plug for Master/Slave selection

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### 6. Installation & Setup

Pre‑Installation Precautions:
- Use an anti‑static wrist strap and ensure proper grounding.
- Power off the host system before installation.

Installation Steps:
1. Open the system chassis and locate the 40‑pin IDE connector.
2. Align pin 1 (marked by a triangle on the DOM) with pin 1 on the host IDE connector.
3. Insert the DOM vertically into the IDE socket.
4. Connect the 4‑pin power cable to an unused +5 V power connector (if required).
5. Verify all connections and close the chassis.

BIOS Configuration:
- Enable Auto‑Detect Drive in BIOS setup.
- If auto‑detection fails, manually enter CHS parameters (500 / 16 / 32 for 128 MB).
- Save settings and reboot.

Formatting and Partitioning:
- Boot from a DOS diskette or equivalent utility.
- Use FDISK.EXE to create partitions.
- Format using FORMAT C:/S to make the DOM bootable.

Master/Slave Configuration:
- For 40‑pin DOMs, Master/Slave is set via the power connector:
- White connector = Master (default)
- Blue connector = Slave
- If IDE pin 20 provides +5 V, a ring plug can be used:
- Ring inserted = Master
- Ring removed = Slave

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### 7. Performance & Capabilities

Data Transfer Performance:
- Sequential Read: 4.3 MB/s
- Sequential Write: 3.3 MB/s
- Host Burst Rate (PIO Mode 2): 8.3 MB/s
- Average Data Transfer Rate: ~3.8 MB/s
- Access Time: < 0.1 ms

Power Efficiency:
- Operates at low current draw, suitable for battery‑powered or fanless systems.
- No mechanical components, eliminating spin‑up delays and reducing heat generation.

Reliability Enhancements:
- ECC Engine: Corrects single‑bit errors and detects double‑bit errors per 256 bytes.
- Bad‑Block Management: Automatically remaps defective blocks to reserved spare areas.
- Wear Leveling: Distributes write/erase cycles evenly across memory cells to extend lifespan.
- Data Protection: Device locks against further writes when all spare blocks are exhausted, preserving read access for data recovery.

Limitations:
- Fixed capacity (128 MB)
- PIO Mode 2 interface limits maximum throughput to 8.3 MB/s
- Not intended for high‑frequency write applications (e.g., continuous logging without wear‑leveling consideration)

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### 8. Standards & Compliance

- Interface Standard: ATA/ATAPI‑4 (IDE 40‑pin)
- Signal Protocol: True IDE Mode, PIO Mode 0–2
- Electrical Compliance: +3.3 V ± 5 % / +5 V ± 10 % DC
- Environmental Compliance: Industrial temperature range 0 °C – 70 °C
- Shock/Vibration: 1000 G operational and non‑operational
- Humidity: 8 % – 95 % non‑condensing
- Regulatory: CE and FCC Class B (typical for PQI industrial products)
- RoHS: Compliant (lead‑free PCB and solder)
- Trademark: DiskOnModule™ is a registered trademark of PQI

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### 9. Additional Information

Warranty:
- Standard manufacturer warranty (typically 1 year limited, extendable for industrial customers).

Support & Maintenance:
- PQI provides technical documentation, installation guides, and firmware support.
- No user‑serviceable parts; maintenance limited to proper handling and environmental protection.

Firmware & Updates:
- Controller firmware includes built‑in flash management algorithms; updates are not user‑accessible.
- PQI may release firmware revisions for OEM customers to enhance compatibility or endurance.

Product Lifecycle & Availability:
- Ongoing production status for industrial supply chains.
- Long‑term availability guaranteed for embedded OEM applications.

Ordering Information:
- Part Number: FD128‑019P (equivalent to DOM‑0128M‑40V‑019)
- Form: Plain‑form, vertical 40‑pin DOM
- Capacity Range (Series): 16 MB – 1.5 GB
- Related Models:
- FD016‑019P (16 MB)
- FD032‑019P (32 MB)
- FD064‑019P (64 MB)
- FD128‑019P (128 MB)
- FD256‑019P (256 MB)

Maintenance Recommendations:
- Avoid frequent power cycling during write operations.
- Ensure proper ESD protection during handling.
- Operate within specified temperature and voltage limits.

End‑of‑Life Handling:
- Dispose of electronic components according to local e‑waste regulations.
- PQI supports recycling and environmentally responsible disposal.

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### Summary

The PQI DOM‑0128M‑40V‑019 is a compact, industrial‑grade 128 MB DiskOnModule designed for embedded and legacy systems requiring reliable, low‑power, solid‑state storage. It offers full IDE compatibility, robust ECC protection, and long‑term data retention in a maintenance‑free design. With its vertical 40‑pin form factor, the module installs directly onto standard IDE connectors, providing a durable and vibration‑resistant alternative to mechanical hard drives. Its combination of high reliability, low power draw, and broad OS support makes it ideal for industrial control, automation, and embedded computing environments where stability and longevity are critical.