74hct40104 NXP Semiconductors, 74hct40104 Datasheet - Page 4

• Manufacturer Part Number: 74hct40104
• Description: 4-bit Bidirectional Universal Shift Register; 3-state
• Manufacturer: NXP Semiconductors

Philips Semiconductors
December 1990
4-bit bidirectional universal shift register;
3-state
Fig.4 Functional diagram.
Fig.5 Logic diagram.
4
FUNCTION TABLE
Notes
1. H = HIGH voltage level
OPE-
RATING
MODES
reset
shift left
shift right
parallel
load
L = LOW voltage level
X = don’t care
t
n 1
= state after next LOW-to-HIGH transition of CP
S
L
H
H
L
L
H
H
INPUTS (OE = HIGH)
1
S
L
L
L
H
H
H
H
0
D
X
X
X
L
H
X
X
SR
D
X
L
H
X
X
X
X
SL
74HC/HCT40104
D
D
to
X
X
X
X
H
X
L
0
3
Product specification
Q
L
Q
Q
L
H
L
H
OUTPUTS at t
0
1
1
Q
L
Q
Q
Q
Q
L
H
1
2
2
0
0
Q
L
Q
Q
Q
Q
L
H
2
3
3
1
1
n 1
Q
L
L
H
Q
Q
L
H
3
2
2