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TYPES SN54221, SN54LS221, SN74221, SN74LS221 DUAL MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS
R E V IS E D D E C E M B E R 1 9 8 3
SN54221, SM54LS221, SN74221 and SN74LS221 Are Dual Vers