Datasheet

December 1990 5
Philips Semiconductors Product specification
8-stage shift-and-store bus register 74HC/HCT4094
FUNCTION TABLE
Notes
1. H = HIGH voltage level
L = LOW voltage level
X = don’t care
Z = high impedance OFF-state
NC= no change
↑ = LOW-to-HIGH CP transition
↓ = HIGH-to-LOW CP transition
Q’
6
= the information in the seventh register stage is transferred to the 8th register stage and QS
n
output at the
positive clock edge
INPUTS PARALLEL OUTPUTS
SERIAL
OUTPUTS
CP OE STR D QP
0
QP
n
QS
1
QS
2
↑
↓
↑
↑
↑
↓
L
L
H
H
H
H
X
X
L
H
H
H
X
X
X
L
H
H
Z
Z
NC
L
H
NC
Z
Z
NC
QP
n - 1
QP
n - 1
NC
Q’
6
NC
Q’
6
Q’
6
Q’
6
NC
NC
QP
7
NC
NC
NC
QP
7
Fig.6 Timing diagram.