NC7SZ74
Logic Symbol
IEEE/IEC
Connection Diagrams
Pin Descriptions
Pin Names
D
CK
CLR
Q, Q
PR
Description
Data Input
Clock Pulse Input
Direct Clear Input
Flip-Flop Output
Direct Preset Input
(Top View)
Pin One Orientation Diagram
Truth Table
Inputs
CLR
L
H
L
H
H
H
PR
H
L
L
H
H
H
D
X
X
X
L
H
X
CK
X
X
X
Outputs
Function
Q
L
H
H
L
H
Q
n
Q
H
L
H
H
L
Q
n
Clear
Preset
—
—
—
No Change
Pad Assignments for MicroPak
AAA represents Product Code Top Mark - see ordering code
Note:
Orientation of Top Mark determines Pin One location. Read the top
product code mark left to right, Pin One is the lower left pin (see diagram).
↑
↑
↓
H
=
HIGH Logic Level
L
=
LOW Logic Level
Q
n
=
No change in data
Z
=
High Impedance
X
=
Immaterial
↑ =
Rising Edge
↓ =
Falling edge
(Top Thru View)
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