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1.8” PATA SSDs

Industrial 1.8” PATA SSDs

PATA Drives

Solid State Drives (Industrial SSDs) are very robust and low power replacements for Hard Disk Drives (HDDs). SSDs have no moving parts, so vibration and shock tolerance are greatly improved over mechanical Hard Disk Drives, resulting in a much better solution for mobile applications. IDE or Parallel ATA (PATA) SSDDs use the standard PATA interface, and are capable of up to Read: up to 80 MB/s, Write: up to 65 MB/s.

Envoy Data Memory offers a broad selection of PATA SSD products that meet the harshest of applications in commercial, industrial and SSD military markets. Our PATA 1.8” SSDs are offered in commercial or industrial temperature range, made with either Multi-Level Cell (MLC), Econo Single Level Cell (EconoSLC™) or Single Level Cell (SLC) NAND Flash.

Flash Management

Error Correction Code (ECC)

Flash memory cells will deteriorate with use, which might generate random bit errors in the stored data. Thus, ENVOY’S 1.8 inch PATA SSDs and PATA drives apply the BCH ECC algorithm, which can detect and correct errors occur during read process, ensure data been read correctly, as well as protect data from corruption.

Wear Leveling

NAND flash devices can only undergo a limited number of program/erase cycles, and in most cases, the flash media are not used evenly. If some areas get updated more frequently than others, the lifetime of the device would be reduced significantly. Thus, Wear Leveling is applied to extend the lifespan of NAND flash by evenly distributing write and erase cycles across the media. Envoy provides advanced Wear Leveling algorithm, which can efficiently spread out the flash usage through the whole flash media area. Moreover, by implementing both dynamic and static Wear Leveling algorithms, the life expectancy of the NAND flash is greatly improved.

Bad Block Management

Bad blocks are blocks that include one or more invalid bits, and their reliability is not guaranteed. Blocks that are identified and marked as bad by the manufacturer are referred to as “Initial Bad Blocks”. Bad blocks that are developed during the lifespan of the flash are named “Later Bad Blocks”. Envoy implements an efficient bad block management algorithm to detect the factory-produced bad blocks and manages any bad blocks that appear with use. This practice further prevents data being stored into bad blocks and improves the data reliability.

Firmware Upgrade

Firmware can be considered as a set of instructions on how the device communicates with the host. Firmware will be upgraded when new features are added, compatibility issues are fixed, or read/write performance gets improved.

Advanced Device Security Features

Secure Erase

Secure Erase is a standard ATA command and will write all “0xFF” to fully wipe all the data on hard drives and SSDs. When this command is issued, the SSD controller will erase its storage blocks and return to its factory default settings.

Write Protect

When a SSD contains too many bad blocks and data are continuously written in, then the SSD might not be usable anymore. Thus, Write Protect is a mechanism to prevent data from being written in and protect the accuracy of data that are already stored in the SSD.

SSD Lifetime Management

Terabytes Written (TBW)

TBW (Terabytes Written) is a measurement of SSDs’ expected lifespan, which represents the amount of data written to the device. To calculate the TBW of a SSD, the following equation is applied: TBW = [(NAND Endurance) x (SSD Capacity) x (WLE)] / WAF NAND Endurance: NAND endurance refers to the P/E (Program/Erase) cycle of a NAND flash. SSD Capacity: The SSD capacity is the specific capacity in total of a SSD. WLE: Wear Leveling Efficiency (WLE) represents the ratio of the average amount of erases on all the blocks to the erases on any block at maximum. WAF: Write Amplification Factor (WAF) is a numerical value representing the ratio between the amount of data that a SSD controller needs to write and the amount of data that the host’s flash controller writes. A better WAF, which is near 1, guarantees better endurance and lower frequency of data written to flash memory. Envoy Data Memory provides MLC 2.5″ products, PATA drives, 1.8″ PATA SSDs, and industrial 1.8″ PATA SSDs.

InterfaceStandard ATA/IDE Bus InterfaceStandard ATA/IDE Bus InterfaceStandard ATA/IDE Bus Interface
ConnectorStandard 40-pin 1.8” form factorStandard 40-pin 1.8” form factorStandard 40-pin 1.8” form factor
Physical Form Factor71mm x 54mm x 5mm71mm x 54mm x 5mm71mm x 54mm x 5mm
Industry Standard
Flash Type Toshiba A19 MLCToshiba A19 MLCToshiba 24mm SLC
Density 4GB – 256GB4GB ~ 128GB4GB – 128GB
Data Retention 10 years FOB / 1 Year EOL10 years FOB / 1 Year EOL10 years FOB / 1 Year EOL
Operating Temperature Commercial: 0°C to 70°CCommercial: 0°C to 70°C
Industrial: -40°C to 85°C
Commercial: 0°C to 70°C
Industrial: -40°C to 85°C
Shock 1500 G1500 G1500 G
Vibration 20 G20 G20 G
Humidity85% RH 85°C, 1000 Hrs85% RH 85°C, 1000 Hrs85% RH 85°C, 1000 Hrs
Read Performanceup to 80 MB/sup to 80 MB/sup to 80 MB/s
Write Performanceup to 65 MB/sup to 65 MB/sup to 65 MB/s
Voltage3.3 VDC3.3 VDC3.3 VDC
Power – ReadUp to 940mWUp to 940mWUp to 940mW
Power – WriteUp to 1,200mWUp to 1,200mWUp to 1,200mW
Power – DEVSLP up to 5mWUp to 5mWUp to 5mW

Contact Us

1310 W. Boxwood Ave Gilbert, AZ 85233

Toll Free: 800-368-6971

Telephone: 480-829-6565

Fax: 480-829-9045

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