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SN74221 - DUAL MONOSTABLE MULTIVIBRATORS

Description

The ’221 and ’LS221 devices are dual multivibrators with performance characteristics virtually identical to those of the ’121 devices.

Features

  • a negative-transitiontriggered input and a positive-transition-triggered input, either of which can be used as an inhibit input. SN54221, SN54LS221, SN74221, SN74LS221 DUAL.

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Full PDF Text Transcription

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D Dual Versions of Highly Stable SN54121 and SN74121 One Shots D SN54221 and SN74221 Demonstrate Electrical and Switching Characteristics That Are Virtually Identical to the SN54121 and SN74121 One Shots D Pinout Is Identical to the SN54123, SN74123, SN54LS123, and SN74LS123 D Overriding Clear Terminates Output Pulse TYPE SN54221 SN74221 SN54LS221 SN74LS221 MAXIMUM OUTPUT PULSE LENGTH(S) 21 28 49 70 description/ordering information The ’221 and ’LS221 devices are dual multivibrators with performance characteristics virtually identical to those of the ’121 devices. Each multivibrator features a negative-transitiontriggered input and a positive-transition-triggered input, either of which can be used as an inhibit input.
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