CD4538BCN product image

CD4538BCN

Monostable Multivibrator
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Manufacturer
FAIRCHILD Semiconductor
Description
 
The  CD4538BCN  is a dual, precision monostable multivibrator with independent trigger and reset controls. The device is retriggerable and resettable, and the control inputs are internally latched. Two trigger inputs are provided to allow either rising or falling edge triggering. The reset inputs are active LOW and prevent triggering while active. Precise control of output pulse-width has been achieved using linear CMOS techniques. The pulse duration and accuracy are determined by external components RX and CX. The device does not allow the timing capacitor to discharge through the timing pin on power-down condition. For this reason, no external protection resistor is required in series with the timing pin. Input protection from static discharge is provided on all pins.
 
CD4538BCN Features
 
• Wide supply voltage range: 3.0V to 15V
•High noise immunity: 0.45 VCC (typ.)
•Low power TTL compatibility: Fan out of 2 driving 74L or 1 driving 74LS
•New formula:  PWOUT = RC (PW in seconds, R in Ohms, C in Farads)
•±1.0% pulse-width variation from part to part (typ.)
•Wide pulse-width range: 1 µs to ∞
•Separate latched reset inputs
•Symmetrical output sink and source capability
•Low standby current: 5 nA (typ.) @ 5 VDC
•Pin compatible to CD4528BC

 

Parametrics
Propagation Delay Time:600 ns, 300 ns, 220 ns
High Level Output Current:- 4.2 mA
Low Level Output Current:4.2 mA
Supply Voltage - Max:15 V
Supply Voltage - Min:3 V
Maximum Operating Temperature:+ 125 C
Minimum Operating Temperature:-55 C
Operating Supply Voltage:3.3 V, 5 V, 9 V, 12 V
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