制造商:Texas Instruments
功能描述:OCTAL BUS TRANSCEIVER
SN74LS640DBRG4
SN74LS640DW
SN74LS640DWE4
SN74LS640DWG4
SN74LS640DWR
SN74LS640DWRE4
SN74LS640DWRG4
SN74LS640N
SN74LS640NE4
SN74LS640NS