HCF4094B_04 Datasheet, PDF (2/13 Pages) STMicroelectronics – 8 STAGE SHIFT AND STORE BUS REGISTER WITH 3-STATE OUTPUTS

HCF4094B
IINPUT EQUIVALENT CIRCUIT
FUNCTIONAL DIAGRAM
PIN DESCRIPTION
PIN N°
2
1
3
9, 10
4, 5, 6, 7, 14,
13, 12, 11
15
8
16
SYMBOL
DATA
STROBE
CLOCK
Q_S, Q’_S
Q1 to Q8
NAME AND FUNCTION
Data Input
Strobe Input
Clock Input
Serial Outputs
Parallel Outputs
OUTPUT
ENABLE
V_SS
V_DD
Output Enable Input
Negative Supply Voltage
Positive Supply Voltage
TRUTH TABLE
CLOCK
OUTPUTS
ENABLE
STROBE
DATA
PARALLEL OUTPUTS
Q₁
Q_n
SERIAL OUTPUTS
Q*_S
Q’_S
L
X
X
OC
OC
Q7
No Change
L
X
X
OC
OC
No Change
Q7
H
L
X
No Change No Change
Q7
No Change
H
H
L
L
Q_n - 1
Q7
No Change
H
H
H
H
Q_n - 1
Q7
No Change
H
H
H
No Change No Change No Change
Q7
X : Don’t Care
OC : Open Circuit
* At the positive clock edge information on the 7th shift register stage is transferred to the 8th register stage and the Q_S output.
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