Part Number
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HD74HCT640 |
Manufacturer
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Hitachi Semiconductor |
Description
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Octal Bus Transceivers (with 3-state outputs) |
Published
|
Mar 23, 2005 |
Detailed Description
|
HD74HCT640/HD74HCT643
Octal Bus Transceivers (with 3-state outputs)
Description
Both the HD74HCT640 and the HD74HCT643 ...
|
Datasheet
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HD74HCT640
|
Overview
HD74HCT640/HD74HCT643
Octal Bus Transceivers (with 3-state outputs)
Description
Both the HD74HCT640 and the HD74HCT643 have one active low enable input (G ), and a direction control (DIR).
When the DIR input is high, data flows from the A inputs to the B outputs.
When DIR is low, data flows from B to A.
The HD74HCT640 transfers inverted data from one bus to the other.
The HD74HCT643 transfers inverted data from the A bus to the B bus and non-inverted data from the B bus to the A bus.
Features
• • • • • • LSTTL Output Logic Level Compatibility as well as CMOS Output Compatibility High Speed Operation: tpd (A to B) = 14.
5 ns typ (CL = 50 pF) High Output Current: Fanout of 15 LSTTL Loads Wide...
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