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Hitachi Semiconductor - Quad 2-Input Multiplexer with Storage

Numéro de référence HD74AC298
Description Quad 2-Input Multiplexer with Storage
Fabricant Hitachi Semiconductor 
Logo Hitachi Semiconductor 





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HD74AC298 fiche technique
HD74AC298/HD74ACT298
Quad 2-Input Multiplexer with Storage
Description
This device is a high-speed multiplexer with storage. It selects four bits of data from two sources (Ports)
under the control of a common Select input (S). The selected data is transferred to the 4-bit output register
synchronous with the HIGH-to-LOW transition of the Clock input (CP). The 4-bit register is fully edge
triggered. The Data inputs (I0 and I1) and Select input (S) must be stable only one setup time prior to the
HIGH-to-LOW transition of the clock for predictable operation.
Features
Outputs Source/Sink 24 mA
HD74ACT298 has TTL-Compatible Inputs
Pin Arrangement
I1b 1
I1a 2
I0a 3
I0b 4
I1c 5
I1d 6
I0d 7
GND 8
(Top view)
16 VCC
15 Qa
14 Qb
13 Qc
12 Qd
11 CP
10 S
9 I0c

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