74HC423D,652 NXP Semiconductors, 74HC423D,652 Datasheet - Page 14

• Manufacturer Part Number: 74HC423D,652
• Description: IC MULTIVIBRATOR DL MONO 16SOIC
• Manufacturer: NXP Semiconductors
• Series: 74HCr

Specifications of 74HC423D,652

• Logic Type: Monostable
• Package / Case: 16-SOIC (3.9mm Width)
• 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
• Elements Per Chip: 2
• Logic Family: HC
• Input Bias Current (max): 0.008 mA
• Propagation Delay Time: 255 ns, 51 ns, 43 ns
• High Level Output Current: - 5.2 mA
• Low Level Output Current: 5.2 mA
• Supply Voltage (max): 6 V
• Supply Voltage (min): 2 V
• Maximum Power Dissipation: 500 mW
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 568-1467-5; 74HC423D; 933714870652

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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