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HCF4098 Datasheet(PDF) 2 Page - STMicroelectronics

Part No. HCF4098
Description  DUAL MONOSTABLE MULTIVIBRATOR
Download  14 Pages
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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HCF4098 Datasheet(HTML) 2 Page - STMicroelectronics

 
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FUNCTIONAL DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VDD*
Supply Voltage : HC C Types
HCF Types
– 0.5 to + 20
– 0.5 to + 18
V
V
V i
Input Voltage
– 0.5 to VDD + 0.5
V
I I
DC Input Current (any one input)
± 10
mA
Pto t
Total Power Dissipation (per package)
Dissipation per Output Transistor
for T op = Full Package-temperature Range
200
100
mW
mW
T op
Operating Temperature : HCC Types
HCF Types
–55 to + 125
–40 to + 85
°C
°C
T stg
Storage Temperature
– 65 to + 150
°C
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Value
Unit
VDD
Supply Voltage : HC C Types
HCF Types
3to 18
3to 15
V
V
VI
Input Voltage
0 to VDD
V
T op
Operating Temperature : HCC Types
HCF Types
– 55 to + 125
–40 to + 85
°C
°C
Stresses above those listed under ”Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only
and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification
is not implied. Exposure to absolute maximum rating conditions for external periods may affect device reliability.
* All voltage values are referred to VSS pin voltage.
pulse one period) on the application of each new
trigger pulse. For operation in the non-triggerable
mode, Q is connected to –TR when leading-edge
triggering (+ TR) is used or Q is connected to + TR
when trailing-edge triggering (– TR) is used. The time
period (T) for this multivibrator can be approximated
by TX = 1/2 RX CX for CX
≥ 0.01 µF. Time periods as
a function of RX for values of CX and VDD are given in
fig. 8. Values of T vary from unit to unit and as a func-
tion of voltage, temperature, and RX CX. The minimum
value of external resistance, RX,is 5 k
Ω. The maxi-
mum value of external capacitance, CX, is 100
µF.
Fig.9 shows time periods as a function of CX forvalues
of RX and VDD. The output pulse width has vari-
ations of
±2.5%typically, over the temperature range
of – 55
°C to 125° Cfor CX = 1000pF and RX = 100
k
Ω. For power supply variations of ± 5%, the output
pulse width has variations of
± 0.5% typically, for VDD
= 10V and 15V and
± 1% typically, for VDD =5 V at
CX = 1000 pF and RX =5k
Ω.
HCC/HCF4098B
2/14


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