74HCT423BQ,115 NXP Semiconductors, 74HCT423BQ,115 Datasheet - Page 15

• Manufacturer Part Number: 74HCT423BQ,115
• Description: IC DUAL RETRIG MULTVIB 16DHVQFN
• Manufacturer: NXP Semiconductors
• Series: 74HCTr

Specifications of 74HCT423BQ,115

• Logic Type: Monostable
• Independent Circuits: 2
• Schmitt Trigger Input: Yes
• Propagation Delay: 22ns
• Current - Output High, Low: 4mA, 4mA
• Voltage - Supply: 4.5 V ~ 5.5 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: 74HCT423BQ-G; 74HCT423BQ-G; 935285426115

NXP Semiconductors
74HC_HCT423
Product data sheet
Fig 14. Power-up output pulse elimination circuit
Fig 15. Power-down protection circuit
12.3 Power-down considerations
A large capacitor C
the capacitor’s stored energy. When a system containing this device is powered-down or a
rapid decrease of V
capacitor discharging through the input protection diodes. To avoid this possibility, use a
damping diode D
large current surges and connect as shown in
nA
nB
nA
nB
All information provided in this document is subject to legal disclaimers.
EXT
1 (9)
2 (10)
EXT
1 (9)
2 (10)
CC
preferably a germanium or Schottky type diode able to withstand
to zero occurs, the monostable may sustain damage, due to the
may cause problems when powering-down the monostable due to
423
Rev. 4 — 18 March 2011
423
GND
8
GND
8
RESET
Dual retriggerable monostable multivibrator with reset
nCEXT
14 (6)
nCEXT
14 (6)
C EXT
nRD
C EXT
3 (11)
nRD
3 (11)
15 (7)
nREXT/CEXT
001aah919
15 (7)
nREXT/CEXT
D EXT
R EXT
13 (5)
4 (12)
R EXT
13 (5)
4 (12)
001aah918
74HC423; 74HCT423
Figure
V
CC
V
CC
nQ
nQ
nQ
nQ
V
CC
15.
© NXP B.V. 2011. All rights reserved.
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