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Motorola Semiconductors - OCTAL BIDIRECTIONAL TRANSCEIVER WITH 3-STATE OUTPUTS

Numéro de référence MC74AC623
Description OCTAL BIDIRECTIONAL TRANSCEIVER WITH 3-STATE OUTPUTS
Fabricant Motorola Semiconductors 
Logo Motorola Semiconductors 





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MC74AC623 fiche technique
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MC74AC623
MC74ACT623
Octal Bidirectional Transceiver
with 3ĆState Outputs
The MC74AC623/74ACT623 octal bus transceiver is designed for asynchronous
two-way communication between data buses. The device transmits data from bus A
to bus B when T/R = HIGH, or from bus B to bus A when T/R = LOW. The enable
input can be used to disable the device so the buses are effectively isolated.
Bidirectional Data Path
A and B Outputs Sink 24 mA/Source –24 mA
• ′ACT623 Has TTL Compatible Inputs
VCC GBA B0 B1 B2 B3 B4 B5 B6 B7
20 19 18 17 16 15 14 13 12 11
OCTAL BIDIRECTIONAL
TRANSCEIVER WITH
3-STATE OUTPUTS
N SUFFIX
CASE 738-03
PLASTIC
1 2 3 4 5 6 7 8 9 10
GAB A0 A1 A2 A3 A4 A5 A6 A7 GND
PIN NAMES
A0–A7
GAB
GBA
B0–B7
Side A Inputs or 3-State Outputs
Enable B Outputs
Enable A Outputs
Side B Inputs or 3-State Outputs
TRUTH TABLE
GAB
GBA
HH
HH
LL
LL
H = HIGH Voltage Level
L = LOW Voltage Level
Applied
Inputs
H
L
H
L
Valid
Direction
I/PO/P
A to B
A to B
B to A
B to A
Output
H
L
H
L
DW SUFFIX
CASE 751D-04
PLASTIC
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FACT DATA
5-1

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