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SN74HC257DR датащи(PDF) 1 Page - Texas Instruments |
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SN74HC257DR датащи(HTML) 1 Page - Texas Instruments |
1 / 17 page SN54HC257, SN54HC258, SN74HC257, SN74HC258 QUADRUPLE 2LINE TO 1LINE DATA SELECTORS/MULTIPLEXERS WITH 3STATE OUTPUTS SCLS224B − DECEMBER 1982 − REVISED SEPTEMBER 2003 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 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 Sources in High-Performance Systems 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 A/B 1A 1B 1Y 2A 2B 2Y GND VCC G 4A 4B 4Y 3A 3B 3Y SN54HC257, SN54HC258...J PACKAGE SN74HC257, SN74HC258...D, N, NS, OR PW PACKAGE (TOP VIEW) 32 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 4A 4B NC 4Y 3A SN54HC257, SN54HC258...FK PACKAGE (TOP VIEW) NC − No internal connection 1B 1Y NC 2A 2B description/ordering information ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP − N Tube of 25 SN74HC257N SN74HC257N PDIP − N Tube of 25 SN74HC258N SN74HC258N Tube of 40 SN74HC257D Reel of 2500 SN74HC257DR HC257 SOIC − D Reel of 250 SN74HC257DT HC257 SOIC − D Tube of 40 SN74HC258D HC258 Reel of 2500 SN74HC258DR HC258 −40 °C to 85°C SOP − NS Reel of 2000 SN74HC257NSR HC257 −40 C to 85 C SOP − NS Reel of 2000 SN74HC258NSR HC258 Tube of 90 SN74HC257PW Reel of 2000 SN74HC257PWR HC257 TSSOP − PW Reel of 250 SN74HC257PWT HC257 TSSOP − PW Tube of 90 SN74HC258PW Reel of 2000 SN74HC258PWR HC258 Reel of 250 SN74HC258PWT HC258 CDIP − J Tube of 25 SNJ54HC257J SNJ54HC257J −55 °C to 125°C CDIP − J Tube of 25 SNJ54HC258J SNJ54HC258J −55 °C to 125°C LCCC − FK Tube of 55 SNJ54HC257FK SNJ54HC257FK LCCC − FK Tube of 55 SNJ54HC258FK SNJ54HC258FK † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Copyright 2003, 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. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. On products compliant to MILPRF38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters. |
Аналогичный номер детали - SN74HC257DR |
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Аналогичное описание - SN74HC257DR |
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