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CD54HC194 Datasheet(PDF) 2 Page - Texas Instruments

Part No. CD54HC194
Description  High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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CD54HC194 Datasheet(HTML) 2 Page - Texas Instruments

 
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Functional Diagram
TRUTH TABLE
OPERATING
MODE
INPUTS
OUTPUT
CP
MR
S1
S0
DSR
DSL
Dn
Q0
Q1
Q2
Q3
Reset (Clear)
X
L
X
X
X
X
X
LLLL
Hold (Do Nothing)
X
H
l
l
X
X
X
q0
q1
q2
q3
Shift Left
H
h
l
XlX
q1
q2
q3
L
Hh
l
X
h
X
q1
q2
q3
H
Shift Right
Hl
h
l
X
X
L
q0
q1
q2
Hl
h
h
X
X
H
q0
q1
q2
Parallel Load
Hh
h
X
X
dn
d0
d1
d2
d3
H = High Voltage Level,
h = High Voltage Level One Set-up Time Prior To The Low to High Clock Transition,
L = Low Voltage Level,
l = Low Voltage Level One Set-up Time Prior to the Low to High Clock Transition,
dn (qn) = Lower Case Letters Indicate the State of the Referenced Input (or output) One Set-up Time Prior to the Low To High Clock
Transition,
X = Don’t Care,
↑ = Transition from Low to High Level
14
12
13
15
Q0
Q1
Q2
Q3
7
6
3
4
5
D0
D1
D2
D3
GND = 8
VCC = 16
2
9
10
1
11
DSL
DSR
S0
S1
MR
CP
CD54HC194, CD74HC194, CD74HCT194


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