74LS221 Datasheet, multivibrators equivalent, ON Semiconductor

74LS221 Features and benefits

74LS221 Application

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74LS22 - DUAL 4-INPUT NAND GATE (Motorola)
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74LS21 - DUAL 4-INPUT AND GATE (Motorola)
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74LS243 - Quadruple Bus Transceiver (Fairchild Semiconductor)
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