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flash SSD Jargon Explained
Power loss protection in SSDs
EOL and the mythical "standard SSD"
SSD Myths and Legends - "write endurance"
the changing face of the industrial SSD market
Noise Damping Techniques for PATA SSDs (pdf)
some business related thoughts about SSD customization
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PATA SSD directory and market overview
... Megabyte found old style wide datapaths
quick enough and reassuringly familiar.
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new roles for IDE / PATA SSDs

by Zsolt Kerekes, editor
The positioning of the PATA SSD market has changed a lot in the past 17 years.

For one thing, the terminology has changed.

Back in July 2000 - when Silicon Storage Technology launched a PATA SSD on a chip - they called it an "ADC" (ATA-Disk Chip). In those days people didn't need to differentiate between PATA and SATA - because the 1st working prototype SATA hard drive wasn't unveiled till August 2000 - and the 1st SATA SSDs didn't appear till 2005.

Today the main role of PATA SSDs is to replace hard drives in legacy embedded equipment systems which were designed before the widespread adoption of SATA SSDs and PCIe SSDs and which may indeed have been originally designed to use hard drives.

Finding new replacement products (as spares or to elongate the market life of dedicated equipment) can be a challenge for buyers today in industrial, medical and military markets.

Some of these BOM issues are discussed in my article - when the socket fits but the datasheet doesn't.
Flexxon SSDs for indistrial medical and automotive applications - overview image

IMA (Industrial, Medical & Automotive)
XTREME series SSDs - from Flexxon
July 2000 - in SSD history
SST Launches PATA SSD on a Chip

July 10, 2000 - SST (Silicon Storage Technology, Inc., today announced that it has entered the embedded mass data storage market with the introduction of a flash memory-based ATA-Disk Chip (ADC) product family

Utilizing the company's proprietary SuperFlash technology for the ATA controller, SST's ADC is the industry's first ATA/IDE protocol-compatible solid-state mass data storage product housed in a multi-chip packaged device. SST's ADC uses a standard ATA/IDE protocol and can be used as a replacement for conventional IDE hard disk drives.

The new product family is ideal for embedded mass data storage applications that require low-power and high-performance yet at the same time, smaller and more reliable mass data storage. These applications include set-top boxes; thin client systems; network computers; Internet appliances; PDAs, cellular phones, MP3 players; digital cameras and other digital handheld devices.

SST's ADC family provides complete IDE hard disk drive functionality and compatibility in a single device. The ADC has built-in microcontroller and file management firmware that supports the ATA standard interface. Because SST's ADC supports the standard ATA-protocol, the host system does not require additional or proprietary software, such as Flash File System (FFS) or Memory Technology Driver (MTD) software to support the ADC. The ATA driver is a standard part of all major operating systems such as Windows 95/98/2000/NT/CE, MAC, Linux, UNIX, etc., and no additional BIOS or OS modification is necessary.

"...Our entry into the embedded mass data storage market allows SST to target a potentially multi-billion dollar digital electronics market that will benefit greatly from a semiconductor equivalent to a hard disk drive" said Bing Yeh, president and CEO of SST.

SST's initial ADC products are packaged in a 32-pin DIP package and are available in a range of capacities from 8 MByte to 64 MByte. SST's ADC supports both 5.0V and 3.3V operation.
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PATA / IDE SSD manufacturers
(includes past and present oems)


Advanced Media




ATP Electronics


BiTMICRO Networks

Buffalo Technology

Cactus Technologies


Delkin Devices





Fortasa Memory Systems


Greenliant Systems

Hagiwara Sys-Com









Micross Components



Phison Electronics


Pretec Electronics

Princeton Technology

Real Ram Disk

Renice Technology


Silicon Motion

Silicon Power

Silicon Storage Technology




Super Talent Technology


Targa Systems Division


Team Group

Transcend Information




Walton Chaintech

Wilk Elektronik

Even industries which weren't expecting to use the newest generations of highest density 3D flash - such as the industrial and military markets - have been hit by shortages in mature planar (2D) memory.
consequences of the 2017 memory shortages
industrial CF cards from Cactus
industrial grade Compact Flash cards
from Cactus Technologies
Notes from SSD market history

The product shown below, from M-Systems (acquired by SanDisk) is from 2005.
M-Systems 2.5" Ultra ATA Flash Disk
2.5" Ultra ATA Flash Disks
from M-Systems
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Notes from SSD market history

The product shown below, from Memtech (acquired by STEC in 2005) is an example of a 3.5" PATA SSD product featured here on in 2004 - the AT3550 Wolverine.
low profile, high capacity  3.5" IDE military temperature range solid state disks from Memtech
3.5" low profile IDE
mil temp solid state disks
from Memtech
2005 - start of SSDs transitioning to serial interfaces
a vendor view from - Guy Freikorn, Product Manager, Rugged Products, M-Systems.

from the 2005 SSD Buyers Guide

"The SSD market has been shifting from Parallel interfaces (PATA, SCSI) to Serial interfaces (SATA and SAS).

Re new applications:- Apple's iPOD Nano is using flash today! It shifted from HDD to Flash. This will boom the flash industry in terms of pricing and flash allocation, providing more flash awareness.

The gap in capacity between hard disk drives and flash SSDs is narrowing. M-Systems offers an Ultra320 SCSI flash SSD product with 352GB capacity."
February 2000 - in SSD market history
BiTMICRO unveils fast 18GB PATA SSD

February 15, 2000 - BiTMICRO unveiled the E-Disk ATE35 - the world's fastest 3.5" PATA SSD with 200 microseconds average access time, 11MB/s burst R/W transfer rates, and 9MB/s sustained R/W. Capacity options ranged upto 19GB.

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