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74LS221 Datasheet Dual Non-retriggerable One-shot

Manufacturer: Fairchild (now onsemi)

Overview: DM74LS221 Dual Non-Retriggerable One-Shot with Clear and Complementary Outputs August 1986 Revised April 2000 DM74LS221 Dual Non-Retriggerable One-Shot with Clear and Complementary.

General Description

The DM74LS221 is a dual monostable multivibrator with Schmitt-trigger input.

Each device has three inputs permitting the choice of either leading-edge or trailing-edge triggering.

Pin (A) is an active-LOW trigger transition input and pin (B) is an active-HIGH transition Schmitt-trigger input that allows jitter free triggering for inputs with transition rates as slow as 1 volt/second.

Key Features

  • s A dual, highly stable one-shot s Compensated for VCC and temperature variations s Pin-out identical to DM74LS123 (Note 1) s Output pulse width range from 30 ns to 70 seconds s Hysteresis provided at (B) input for added noise immunity s Direct reset terminates output pulse s Triggerable from CLEAR input s DTL, TTL compatible s Input clamp diodes Note 1: The pin-out is identical to DM74LS123 but, functionally it is not; refer to Operating Rules #10 in this datasheet. Ordering Code: Order Nu.

74LS221 Distributor

Similar Datasheet

Brand Logo Part Number Description Manufacturer
ON Semiconductor Logo 74LS221 Dual Monostable Multivibrators ON Semiconductor

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