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| MC74VHC574_11 Datasheet, PDF (6/8 Pages) ON Semiconductor – Octal D-Type Flip-Flop with 3-State Output | |||
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D0 2
D1 3
D2 4
D3 5
D4 6
D5 7
D6 8
D7 9
MC74VHC574
C
Q
D
C
Q
D
C
Q
D
C
Q
D
C
Q
D
C
Q
D
C
Q
D
C
Q
D
CP 11
OE 1
19 Q0
18 Q1
17 Q2
16 Q3
15 Q4
14 Q5
13 Q6
12 Q7
Figure 6. Expanded Logic Diagram
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
1 kΩ
CL*
CONNECT TO VCC WHEN
TESTING tPLZ AND tPZL.
CONNECT TO GND WHEN
TESTING tPHZ AND tPZH.
*Includes all probe and jig capacitance
INPUT
Figure 7. Test Circuit
Figure 8. INPUT EQUIVALENT CIRCUIT
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