74HCT4538N,112 NXP Semiconductors, 74HCT4538N,112 Datasheet - Page 11
74HCT4538N,112
Manufacturer Part Number
74HCT4538N,112
Description
IC DUAL RETRIG MULTIVIB 16DIP
Manufacturer
NXP Semiconductors
Series
74HCTr
Datasheet
1.74HC4538N652.pdf
(13 pages)
Specifications of 74HCT4538N,112
Logic Type
Monostable
Independent Circuits
2
Schmitt Trigger Input
Yes
Propagation Delay
35ns
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Through Hole
Package / Case
16-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output High, Low
-
Other names
74HCT4538N
74HCT4538N
933670470112
74HCT4538N
933670470112
Philips Semiconductors
September 1993
Dual retriggerable precision monostable
multivibrator
Fig.11 Power-down protection circuit.
Fig.12 Typical pulse width accuracy versus external capacitance; V
Fig.13 Typical pulse width accuracy versus external resistance; V
11
Power-down considerations
A large capacitor (C
powering-down the monostable due to the energy stored
in this capacitor. When a system containing this device is
powered-down or a rapid decrease of V
the monostable may sustain damage, due to the capacitor
discharging through the input protection diodes. To avoid
this possibility, use a damping diode (D
germanium or Schottky type diode able to withstand large
current surges and connect as shown in Fig.11.
CC
CC
X
) may cause problems when
= 4.5 V; T
= 4.5 V; T
74HC/HCT4538
amb
amb
= 25 C.
= 25 C.
Product specification
CC
X
) preferably a
to zero occurs,