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SN74AS353BDR Scheda tecnica(PDF) 1 Page - Texas Instruments |
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SN74AS353BDR Scheda tecnica(HTML) 1 Page - Texas Instruments |
1 / 9 page SN74AS353B DUAL 1OF4 DATA SELECTOR/MULTIPLEXER WITH 3STATE OUTPUTS SDAS222A − APRIL 1982 − REVISED DECEMBER 1994 Copyright 1994, Texas Instruments Incorporated 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 • Inverting Version of ′AS253 • Permits Multiplexing From n Lines to One Line • Performs Parallel-to-Serial Conversion • Package Options Include Plastic Small-Outline (D) Packages and Standard Plastic (N) 300-mil DIPs description This data selector/multiplexer contains inverters and drivers to supply full binary decoding data selection to the AND-OR-invert gates. Separate output-enable (OE) inputs are provided for each of the two 4-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 the high-impedance state), the low impedance of the single enabled output drives the bus line to a high or low logic level. Each section has its own output enable. The output is disabled when OE is high. The SN74ALS353B is characterized for operation from 0 °C to 70°C. FUNCTION TABLE INPUTS OUTPUT SELECT DATA OE OUTPUT Y B A C0 C1 C2 C3 OE Y X X X X X X H Z L LL XX X L H L LH XX X L L L HX LX XL H L HX HX X L L H LX XL XL H H LX XH X L L H HX XX L L H H H X X X H L L Select inputs A and B are common to both sections. D OR N PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 1OE B 1C3 1C2 1C1 1C0 1Y GND VCC 2OE A 2C3 2C2 2C1 2C0 2Y 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. |
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