Octal Bus Transceivers
HD74LS645
Octal Bus Transceivers (non-inverted 3-state outputs)
REJ03D0491–0200 Rev.2.00
Feb.18.2005
This octal bus t...
Description
HD74LS645
Octal Bus Transceivers (non-inverted 3-state outputs)
REJ03D0491–0200 Rev.2.00
Feb.18.2005
This octal bus transceivers is designed for asynchronous two-way communication between data buses. The devices transmit data from the A bus to the B bus or from the B bus to the A bus depending upon the level at the direction control (DIR) input. The enable input (G) can be used to disable the device so that the buses are effectively isolated.
Features
Ordering Information
Part Name
Package Type
Package Code (Previous Code)
Package Abbreviation
HD74LS645P
DILP-20 pin
PRDP0020AC-B (DP-20NEV)
P
HD74LS645FPEL SOP-20 pin (JEITA)
PRSP0020DD-B (FP-20DAV)
FP
Note: Please consult the sales office for the above package availability.
Taping Abbreviation (Quantity) —
EL (2,000 pcs/reel)
Pin Arrangement
DIR 1 1A 2 2A 3 3A 4 4A 5 5A 6 6A 7 7A 8 8A 9 GND 10
20 VCC 19 Enable G 18 1B 17 2B 16 3B 15 4B 14 5B 13 6B 12 7B 11 8B
(Top view)
Function Table
Note:
Enable G L L H...
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