74HC423BQ,115 NXP Semiconductors, 74HC423BQ,115 Datasheet - Page 14
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74HC423BQ,115
Manufacturer Part Number
74HC423BQ,115
Description
IC DUAL RETRIG MULTIVIB 16DHVQFN
Manufacturer
NXP Semiconductors
Series
74HCr
Datasheet
1.74HCT423DB112.pdf
(24 pages)
Specifications of 74HC423BQ,115
Logic Type
Monostable
Independent Circuits
2
Schmitt Trigger Input
Yes
Propagation Delay
20ns
Current - Output High, Low
5.2mA, 5.2mA
Voltage - Supply
2 V ~ 6 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
16-VQFN Exposed Pad, 16-HVQFN, 16-SQFN, 16-DHVQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
74HC423BQ-G
74HC423BQ-G
935285428115
74HC423BQ-G
935285428115
NXP Semiconductors
12. Application information
74HC_HCT423
Product data sheet
Fig 13. Timing component connections
(1) For minimum noise generation it is recommended that the nCEXT pins (6, 14) are connected to ground externally to
the GND pin (8).
12.1.1 Minimum monostable pulse width
12.1 Timing component connections
12.2 Power-up considerations
The basic output pulse width is essentially determined by the values of the external timing
components R
To set the minimum pulse width, when C
when C
t
t
R
C
When the monostable is powered-up it may produce an output pulse, with a pulse width
defined by the values of R
circuit shown in
W
W
EXT
EXT
= 0.45 × R
= pulse width in μs;
= external resistor in kΩ;
= external capacitor in nF.
EXT
> 10 nF, the output pulse width is defined as:
nA
nB
EXT
EXT
All information provided in this document is subject to legal disclaimers.
Figure
× C
and C
1 (9)
2 (10)
EXT
14.
Rev. 4 — 18 March 2011
EXT
(typ.), where:
423
EXT
8
GND
.
and C
(1)
Dual retriggerable monostable multivibrator with reset
nCEXT
14 (6)
C EXT
EXT
3 (11)
nRD
, this output pulse can be eliminated using the
EXT
15 (7)
001aah917
nREXT/CEXT
R EXT
13 (5)
4 (12)
< 10 nF, see
74HC423; 74HCT423
V
CC
nQ
nQ
Figure 8
and
© NXP B.V. 2011. All rights reserved.
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