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CD54HC123 Datasheet(PDF) 2 Page - Texas Instruments

Part No. CD54HC123
Description  High-Speed CMOS Logic Dual Retriggerable Monostable Multivibrators with Resets
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

CD54HC123 Datasheet(HTML) 2 Page - Texas Instruments

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2
Pinout
CD54HC123, CD54HCT123
(CERDIP)
CD74HC123
(PDIP, SOIC, SOP, TSSOP)
CD74HC423
(PDIP, SOIC, SOP)
CD74HCT123, CD74HCT423
(PDIP, SOIC)
TOP VIEW
Functional Diagram
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
1A
1B
1R
1Q
2Q
2CX
GND
2RXCX
VCC
1CX
1Q
2Q
2R
2B
2A
1RXCX
2R
11
2A
9
10
5
12
2Q
2Q
2B
MONO 2
VCC
67
2Cx
2RxCx
1R
3
1A
2
1
13
4
1Q
1Q
1B
MONO 1
VCC
14
15
1Cx
1RxCx
1Cx
1Rx
2Cx
2Rx
TRUTH TABLE
INPUTS
OUTPUTS
AB
RQ
Q
CD74HC/HCT123
HX
H
L
H
XL
H
L
H
L
H
HH
XX
L
L
H
LH
CD74HC/HCT423
HX
H
L
H
XL
H
L
H
L
H
HH
XX
L
L
H
H = High Voltage Level, L = Low Voltage Level,
X = Don’t Care.
CD54/74HC123, CD54/74HCT123, CD74HC423, CD74HCT423


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