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CD74HC123 Datasheet(PDF) 5 Page - Texas Instruments

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Part No. CD74HC123
Description  High Speed CMOS Logic Dual Retriggerable Monostable Multivibrators with Resets
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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CD74HC123 Datasheet(HTML) 5 Page - Texas Instruments

   
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5
RtWL
2
100
-
-
125
-
-
150
-
150
ns
4.5
20
-
-
25
-
-
30
-
30
ns
6
17
-
-
21
-
-
26
-
26
ns
A and B Hold Time
tH
2
50
-
-
65
-
-
75
-
75
ns
4.5
10
-
-
13
-
-
15
-
15
ns
6
9
-
-
11
-
-
13
-
13
ns
Reset Removal Time
tREM
2
50
-
-
65
-
-
75
-
75
ns
4.5
10
-
-
13
-
-
15
-
15
ns
6
9
-
-
11
-
-
13
-
13
ns
Retrigger Time Number
trT
5-
-
-
-
-
-
-
-
-
ns
RX = 10KΩ, CX = 0
-
50
-
-
63
-
-
76
-
ns
Output Pulse Width
tW
5
Q or Q
RX = 10KΩ,CX = 10nF
40
-
50
38.7
-
51.3
38.2
-
51.8
µs
HCT TYPES
Minimum Input,
Pulse Width
tWL
5
-
A20
-
-
25
-
-
30
-
-
ns
BtWH
20
-
-
25
-
-
30
-
-
ns
RtWL
20
-
-
25
-
-
30
-
-
ns
A and B Hold Time
tH
510
-
-
13
-
-
15
-
-
ns
Reset Removal Time
tREM
510
-
-
13
-
-
15
-
ns
Retrigger Time Number
(Note 4)
RX = 10KΩ, CX = 0
trT
5
-
50
-
-
63
-
-
76
-
ns
Output Pulse Width Q or Q
tW
5
40
-
50
38.7
-
51.3
38.2
-
51.8
µs
RX = 10KΩ,CX = 10nF
NOTE:
4. Time to trigger depends on the values of RX and CX. The output pulse width can only be extended when the time between the active-
going edges of the trigger input pulses meet the minimum retrigger time requirement.
Prerequisite for Switching Specifications (Continued)
PARAMETER
SYMBOL
VCC (V)
25oC
-40oC TO 85oC
-55oC TO 125oC
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
CD74HC123, CD74HCT123, CD74HC423, CD74HCT423


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