74HC123D,653 NXP Semiconductors, 74HC123D,653 Datasheet - Page 16

• Manufacturer Part Number: 74HC123D,653
• Description: IC MULTIVIBRATR DUAL MONO 16SOIC
• Manufacturer: NXP Semiconductors
• Series: 74HCr

Specifications of 74HC123D,653

• Logic Type: Monostable
• Package / Case: 16-SOIC (3.9mm Width)
• Independent Circuits: 2
• Schmitt Trigger Input: No
• Propagation Delay: 65ns
• 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 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: 568-1390-2; 74HC123D-T; 933713960653

NXP Semiconductors
74HC_HCT123
Product data sheet
12.3 Power-down considerations
A large capacitor C
the energy stored in this capacitor. When a system containing this device is
powered-down or a rapid decrease of V
damage, due to the capacitor discharging through the input protection diodes. To avoid
this possibility, use a damping diode (D
diode able to withstand large current surges and connect as shown in
Fig 15. Power-down protection circuit
All information provided in this document is subject to legal disclaimers.
EXT
nA
nB
may cause problems when powering-down the monostable due to
Rev. 6 — 14 March 2011
1 (9)
2 (10)
Dual retriggerable monostable multivibrator with reset
123
GND
8
EXT
CC
) preferably a germanium or Schottky type
to zero occurs, the monostable may sustain
nCEXT
14 (6)
74HC123; 74HCT123
C EXT
nRD
3 (11)
15 (7)
nREXT/CEXT
001aaa614
D EXT
R EXT
13 (5)
4 (12)
nQ
nQ
V
CC
Figure
© NXP B.V. 2011. All rights reserved.
15.
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