74HCT594 Datasheet, PDF (2/12 Pages) Diodes Incorporated – 8-BIT SHIFT REGISTER WITH 8-BIT OUTPUT REGISTER

Pin Descriptions
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin Name
Q1
Q2
Q3
Q4
Q5
Q6
Q7
GND
Q7S
SHR
SHCP
STCP
STR
DS
Q0
Vcc
Description
Parallel Data Output 1
Parallel Data Output 2
Parallel Data Output 3
Parallel Data Output 4
Parallel Data Output 5
Parallel Data Output 6
Parallel Data Output 7
Ground
Serial Data Output
Shift Register Reset active low
Shift Register Clock Input
Storage Register Clock Input
Storage Register Reset active low
Serial Data Input
Parallel Data Output 0
Supply Voltage
Logic Diagram
Functional Diagram
DS
SHCP
SHR
STCP
STR
STAGE 0
D
Q
FF0
CP
R
STAGES 1 TO 6
D
Q
STAGE 7
D
Q
FF7
CP
R
D
Q
LATCH
CP
R
D
Q
LATCH
CP
R
74HCT594
74HCT594
Document number: DS35491 Rev. 2 - 2
Q0
Q1 Q2 Q3 Q4 Q5 Q6
2 of 12
www.diodes.com
Q7
June 2013
© Diodes Incorporated