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HD74HC194 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 4-bit Bidirectional Universal Shift Register - Renesas

भाग संख्या HD74HC194
समारोह 4-bit Bidirectional Universal Shift Register
मैन्युफैक्चरर्स Renesas 
लोगो Renesas लोगो 
पूर्व दर्शन
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<?=HD74HC194?> डेटा पत्रक पीडीएफ

HD74HC194 pdf
HD74HC194
Function Table
Inputs
Operating
Outputs
Mode
Clear
Mode
Clock
Serial
Parallel
S1 S0
Shift Left Shift Right A B C D QA QB QC QD
Clear
LXXX
X
X XXXX L L L L
Parallel load H H H
X X abcd a b c d
Shift right
HLH
HLH
Shift left
HH L
HH L
Hold
HL L
HXX
HXX
H : high level (Steady state)
X
L
H
X
X
H
L
X
X
X
H X X X X H QAn QBn QCn
L
XXXX
L QAn QBn QCn
X X X X X QBn QCn QDn H
X X X X X QBn QCn QDn L
X X X X X QA0 QB0 QC0 QD0
X X X X X QA0 QB0 QC0 QD0
X X X X X QA0 QB0 QC0 QD0
L : low level (Steady state)
X : don’t care
: transition from low to high level.
a, b, c, d : the level of steady-state input at inputs A, B, C or D respectively.
QA0, QB0, QC0, QD0 : the level of QA, QB, QC or QD respectively, before the indicated steady-state input conditions were
established.
QAn, QBn, QCn, QDn :
the level of QA, QB, QC or QD respectively before the most recent transition of the clock.
Pin Arrangement
Clear 1
Shift
Right 2
Serial-Input
A3
B4
Parallel
Inputs C 5
D6
Shift
Left 7
Serial-Input
GND 8
R CLR QA
A QB
B QC
C QD
D CK
L S1
S0
(Top view)
16 VCC
15 QA
14 QB
Parallel
13 QC Outputs
12 QD
11 Clock
10 S1
Mode Control
9 S0
Rev.2.00 Jan 31, 2006 page 2 of 8

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