SN54LS651 THRU SN54LS653 SN74LS651 THRU SN74LS653 .
Texas Instruments
SN74LS652 - OCTAL BUS TRANSCEIVERS/REGISTERS
SN54LS651 THRU SN54LS653 SN74LS651 THRU SN74LS653 OCTAL BUS TRANSCEIVERS AND REGISTERS SDLS191A – JANUARY 1981 – REVISED DECEMBER 2000 PRODUCTION DAT.