74HCT257, 74HC257 Datasheet - Texas Instruments

74HCT257 High-Speed CMOS Logic Quad 2-Input Multiplexer

ordering information NC * No internal connection ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP * N Tube of 25 SN74HC257N SN74HC258N SN74HC257N SN74HC258N Tube of 40 SN74HC257D Reel of 2500 SN74HC257DR HC257 SOIC * D Reel of 250 .

SN54HC257, SN54HC258, SN74HC257, SN74HC258 QUADRUPLE 2ĆLINE TO 1ĆLINE DATA SELECTORS/MULTIPLEXERS WITH 3ĆSTATE OUTPUTS SCLS224B DECEMBER 1982 REVISED SEPTEMBER 2003 D Wide Operating Voltage Range of 2 V to 6 V D High-Current Inverting Outputs Drive Up To 15 LSTTL Loads D Low Power Consumption, 80-µA Max ICC D ’HC257 . . . Typical tpd = 9 ns D ’HC258 . . . Typical tpd = 12 ns D ±6-mA Output Drive at 5 V D Low Input Current of 1 µA Max D Provides Bus Interface from Multiple S.

74HC257-etcTI.pdf