MC74HC4094A Datasheet, PDF (5/12 Pages) ON Semiconductor – 8-Bit Shift and Store Register

MC74HC4094A
FUNCTIONAL TABLE
INPUTS
PARALLEL OUTPUTS
SERIAL OUTPUTS
CP
OE
STR
D
QP0
QPn
QS1
QS2
↑
L
X
X
Z
Z
Q’6
NC
↓
L
X
X
Z
Z
NC
QP7
↑
H
L
X
NC
NC
Q’6
NC
↑
H
H
L
L
QPn−1
Q’6
NC
↑
H
H
H
H
QPn−1
Q’6
NC
↓
H
H
H
NC
NC
NC
QP7
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 QSn output at the positive clock edge
CLOCK INPUT
CP
DATA INPUT
D
STROBE INPUT
STR
OUTPUT ENABLE INPUT OE
INTERNAL Q’0
FF0
OUTPUT
QP0
INTERNAL Q’6
FF6
OUTPUT
QP6
SERIAL OUTPUT
QS1
SERIAL OUTPUT
QS2
Z−state
Z−state
Figure 6. Timing Diagram
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