SN74LS640 查看數據表（PDF） - ON Semiconductor

零件编号

产品描述 (功能)

比赛名单

SN74LS640

Octal Bus Transceivers

ON Semiconductor 

SN74LS640 SN74LS641 SN74LS642 SN74LS645

CONNECTION DIAGRAMS DIP (TOP VIEW)

ENABLE

VCC G B1 B2 B3 B4 B5 B6 B7 B8

20 19 18 17 16 15 14 13 12 11

ENABLE

VCC G B1 B2 B3 B4 B5 B6 B7 B8

20 19 18 17 16 15 14 13 12 11

1 2 3 4 5 6 7 8 9 10

DIR A1 A2 A3 A4 A5 A6 A7 A8 GND

SN74LS640

SN74LS642

1 2 3 4 5 6 7 8 9 10

DIR A1 A2 A3 A4 A5 A6 A7 A8 GND

SN74LS641

SN74LS645

http://onsemi.com

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