SN54LS257B, SN54LS258B, SN54S257, SN54S258 SN74LS257B, SN74LS258B, SN74S257, SN74S258 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS SDLS148 OCTOBER 1976 REVISED MARCH 1988 Copyright 1988, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. 1 POST OFFICE BOX 655303 DALLAS, TEXAS 75265SN54LS257B, SN54LS258B, SN54S257, SN54S258 SN74LS257B, SN74LS258B, SN74S257, SN74S258 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS SDLS148 OCTOBER 1976 REVISED MARCH 1988 2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265