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CD4538BM Datasheet Dual Precision Monostable

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: CD4538BM CD4538BC Dual Precision Monostable February 1988 CD4538BM CD4538BC Dual Precision.

General Description

The CD4538B 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 ponents 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

Key Features

  • Y Y Y Y Y Y Y Y Y Y Wide supply voltage range 3 0V to 15V High noise immunity 0 45 VCC (typ ) Low power Fan out of 2 driving 74L TTL compatibility or 1 driving 74LS New formula PWOUT e RC (PW in seconds R in Ohms C in Farads) g 1 0% pulse-width variation from part to part (typ ) Wide pulse-width range 1 ms to % Separate latched reset inputs Symmetrical output sink and source capability Low standby current 5 nA (typ ) 5 VDC Pin compatible to CD4528B Block and Connection Diagrams Dual-In-Lin.

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CD4538BM Distributor