IC INVERTING BUS TRANSCEIVER SOP-20; Logic Family / Base Number:74LS640; Logic Device Type:Transceiver Inverting; Logic Case Style:SOP; No. of Pins:20Pins; Supply Voltage Min:4.75V; Supply Voltage Max:5.25V; Logic IC Family:74LS ;RoHS Compliant: Yes
Texas Instruments
Texas Instruments - SN74LS640NSRE4
$2.07
Texas Instruments - SN74LS640NSRG4
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Texas Instruments - SN74LS640DWRE4
Texas Instruments - SN74LS640DWE4
Texas Instruments - SN74LS640-1NSRE4
$4.74
Texas Instruments - SN74LS640DBRG4