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PCMCIA | Tech Info Home Page |

General Information -

PCMCIA (Personal Computer Memory Card International Association) is an international standards body and trade association. It is also a hardware and software standard which controls how PCMCIA cards will function. PCMCIA cards are computer devices the size of a credit card that can be plugged in to a supporting slot on a computer. PCMCIA cards are available as modems, network cards, or many other devices. The PCMCIA card is also referred to as PC Card.

For information on PCMCIA Hardware see the PCMCIA Hardware page. 

There are two types of PCMCIA cards. The "PC Card" which is the older 16-bit version and the "CardBus" which is the newer 32-bit version of the card.

Software Releases

• Release 1.0 - Issued in June 1990
• Release 2.0 - Issued in September 1991
• Release 2.01 - November 1992
• Release 2.1 - July 1993
• February 1995 - PC Card Standard
• March 1997 - PC Card Standard latest edition

PCMCIA Card Types

• PC Card - 
• Small PC Card - 
• Miniature PC Card - 
• SmartMedia Card - 
• MultiMedia Card - 
• CompactFlash -

 

Physical Characteristics - 

PC Card Physical Characteristics

There are 3 types of PCMCIA cards and "extended" cards. They are identical in size

Type I ( 3.3 mm thick )	Type II ( 5.0mm thick )	Type III ( 10.5mm thick )
for Memory (SRAM,Flash,etc)	Modem, LAN, etc This card comes in two versions, the 32-bit, 3.3V PC CardBus card and the16-bit, 5.0V PC card.	hard drives
They all have the same size, and only differ in thickness, a thinner card can be used in a thicker slot, but a thicker card can not be used in a thinner slot Extended Cards are just longer then standard cards.

• Length -  85.6mm
• Width  - 54.0mm
• Connector - They all use the same 68-pin connector. 
• Operating Temp - 0 to 55 C
• Storage Temp. - -20 to 65 C
• Minimum Insertions - Office Env. 10,000 / Harsh Env.  5,000

The connector pin-out is found at the PC-Card.com site.

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