CD74HCT640EE4

高速CMOS逻辑八路三态总线收发器，反相 High-Speed CMOS Logic Octal Three-State Bus Transceiver, Inverting

Transceiver, Inverting 1 Element 8 Bit per Element 3-State Output 20-PDIP

得捷:
IC TRANSCVR TRI-ST 8BIT 20DIP

艾睿:
Bus XCVR Single 8-CH 3-ST 20-Pin PDIP Tube