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74ACT11253D Datasheet(PDF) 1 Page - Texas Instruments |
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74ACT11253D Datasheet(HTML) 1 Page - Texas Instruments |
1 / 5 page 54ACT11253, 74ACT11253 DUAL 1OF4 DATA SELECTORS/MULTIPLEXERS WITH 3STATE OUTPUTS SCAS040A − D3110, MARCH 1988 − REVISED APRIL 1993 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001 Copyright 1993, Texas Instruments Incorporated 2−1 • Inputs Are TTL-Voltage Compatible • 3-State Version of ′ACT11153 • Permits Multiplexing From N Lines to One Line • Performs Parallel-to-Serial Conversion • Package Options Include Plastic Small- Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs • Flow-Through Architecture Optimizes PCB Layout • Center-Pin V CC and GND Configurations Minimize High-Speed Switching Noise • EPICt (Enhanced-Performance Implanted CMOS) 1- mm Process description Each of these data selectors/multiplexers contains inverters and drivers to supply full binary decoding data selection to the AND-OR gates. Separate output control inputs are provided for each of the two four-line sections. The 3-state outputs can interface with and drive data lines of bus-organized systems. With all but one of the common outputs disabled (at a high-impedance state), the low-impedance of the single enabled output will drive the bus line to a high or low logic level. Each output has its own strobe (G). The outputs are disabled when G is high. The 54ACT11253 is characterized for operation over the full military temperature range of − 55 °C to 125 °C. The 74ACT11253 is characterized for operation from − 40 °C to 85°C. FUNCTION TABLE SELECT INPUTS DATA INPUTS OUTPUT CONTROL OUTPUT Y B A C0 C1 C2 C3 CONTROL G Y X X X X X X H Z L LL XXX L L L LH XXX L H L HX LX X L L L HX HX X L H H LX XLX L L H LX XHX L H H HX XX L L L H H X X X H L H Address inputs A and B are common to both sections. 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 A B 1Y GND 2Y 1G 2G 2C3 1C0 1C1 1C2 1C3 VCC 2C0 2C1 2C2 (TOP VIEW) 3 2 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 2C1 2C2 NC 2C3 2G 1C1 1C0 NC A B 54ACT11253 . . . FK PACKAGE (TOP VIEW) NC − No internal connection logic symbol† 2Y 1Y 5 3 2C2 2C1 2C0 2G 1C3 1C2 1C1 1G B A 9 10 11 7 13 14 15 6 2 1 EN 1 0 16 2C3 8 0 1 2 3 MUX G 0 3 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for the D, J, and N packages. 1C0 54ACT11253 ...J PACKAGE 74ACT11253 ...D OR N PACKAGE 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. EPIC is a trademark of Texas Instruments Incorporated. |
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