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74ACT11257DBRE4 数据表(PDF) 1 Page - Texas Instruments |
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74ACT11257DBRE4 数据表(HTML) 1 Page - Texas Instruments |
1 / 13 page 74ACT11257 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS SCAS053B – JANUARY 1989 – REVISED APRIL 1996 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Inputs Are TTL-Voltage Compatible D 3-State Outputs Interface Directly With System Bus D Flow-Through Architecture Optimizes PCB Layout D Center-Pin VCC and GND Configurations Minimize High-Speed Switching Noise D EPICt (Enhanced-Performance Implanted CMOS) 1- mm Process D 500-mA Typical Latch-Up Immunity at 125 °C D Provides Bus Interface From Multiple Sources in High-Performance Systems D Package Options Include Plastic Small-Outline (DW) and Shrink Small-Outline (DB) Packages, and Standard Plastic 300-mil DIPs (N) description The 74ACT11257 is designed to multiplex signals from 4-bit data sources to four output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (OE) input is at a high logic level. The 74ACT11257 is characterized for operation from –40 °C to 85°C. FUNCTION TABLE INPUTS OUTPUT OE SELECT DATA OUTPUT Y OE A/B A B Y H X X X Z L L L XL L L H XH L H X LL L H X H H Copyright © 1996, 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. EPIC is a trademark of Texas Instruments Incorporated. 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 A /B 1Y 2Y GND GND GND GND 3Y 4Y OE 1A 1B 2A 2B VCC VCC 3A 3B 4A 4B DB, DW, OR N PACKAGE (TOP VIEW) |
类似零件编号 - 74ACT11257DBRE4 |
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类似说明 - 74ACT11257DBRE4 |
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