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SN74LVC157APW SN74LVC157APW- SN74LVC157APW^ SN74LVC157APW` SN74LVC157APW= SN74LVC157APWE4 SN74LVC157APWG4 SN74LVC157APWR SN74LVC157APWRE4 SN74LVC157APWRG4