SN54LS640J,OCTAL BUS TRANSCEIVERS 20-CDIP -
SN54LS645J,OCTAL BUS TRANSCEIVERS 20-CDIP -
SN54LS669J,SYNCHRONOUS 4-BIT UP/DOWN COUNTE
SN54LS670J,4-BY-4 REGISTER FILES WITH 3-STA
SN54LS673J,16-BIT SHIFT REGISTERS 24-CDIP -
SN54LS674J,16-BIT SHIFT REGISTERS 24-CDIP -
SN54LS682J,8-BIT IDENTITY/MAGNITUDE COMPARA
