M74HC4538TTR STMicroelectronics, M74HC4538TTR Datasheet - Page 4

IC MULTIVIBRATOR DUAL 16-TSSOP

M74HC4538TTR

Manufacturer Part Number
M74HC4538TTR
Description
IC MULTIVIBRATOR DUAL 16-TSSOP
Manufacturer
STMicroelectronics
Series
74HCr
Datasheet

Specifications of M74HC4538TTR

Logic Type
Monostable
Independent Circuits
2
Schmitt Trigger Input
No
Propagation Delay
25ns
Current - Output High, Low
5.2mA, 5.2mA
Voltage - Supply
2 V ~ 6 V
Operating Temperature
-55°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
16-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-8197-2
M74HC4538TTR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M74HC4538TTR
Manufacturer:
STM
Quantity:
212
Part Number:
M74HC4538TTR
Manufacturer:
TI/德州仪器
Quantity:
20 000
Pin connection and IEC logic symbols
4/18
Figure 4.
Figure 5.
1. Cx, Rx, Dx are external components.
2. Dx is a clamping diode.
The external capacitor is charged to V
turned off Cx is discharged mainly through an internal parasitic diode (see figures). If Cx is sufficiently large
and V
up. If the voltage supply filter capacitor is large enough and V
automatically limited and damage to the IC is avoided. The maximum forward current of the parasitic diode
is approximately 20 mA. In cases where Cx is large the time taken for the supply voltage to fall to 0.4 V
can be calculated as follows: t
In cases where t
current.
CC
decreases rapidly, there will be some possibility of damaging the IC with a surge current or latch-
Timing chart
Block diagram
f
is too short an external clamping diode is required to protect the IC from the surge
f
> (V
CC
CC
- 0.7) x Cx/20 mA.
in the standby state, i.e. no trigger. When the supply voltage is
CC
decreases slowly, the surge current is
M74HC4538
CC

Related parts for M74HC4538TTR