74F794 데이터 시트보기 (PDF) - Fairchild Semiconductor
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74F794 Datasheet PDF : 6 Pages
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Input Loading/Fan-Out
Pin Names
OE
CP
D0–D7
Q0–Q7
Description
Output Enable Input
Clock Pulse Inputs
D Bus Inputs/
3-STATE Outputs
Q Bus Outputs
HIGH/LOW
(U.L.)
Current
1.0/1.0 20 µA/−0.6 mA
1.0/1.0
20 µA/−0.6 mA
3.5/1.083 70 µA/−650 µA
750/106.6 −15 mA/64 mA
750/106.6 −15 mA/64 mA
Truth Table
Logic Diagram
Inputs
Outputs
CP
OE Q
D
L or H or ↓
L or H or ↓
↑
↑
L Qn
H Qn
L Qn
HD
Output, Q
Input
Output, Q (Note 1)
Input
Note 1: In this case the output of the register is clocked to the inputs and
the overall Q output is unchanged at Qn.
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