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54ACT16825 Arkusz danych(PDF) 1 Page - Texas Instruments |
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54ACT16825 Arkusz danych(HTML) 1 Page - Texas Instruments |
1 / 10 page 54ACT16825, 74ACT16825 18-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCAS155B – JANUARY 1991 – REVISED APRIL 1996 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Members of the Texas Instruments Widebus ™ Family D Inputs Are TTL-Voltage Compatible D Provide Extra Data Width Necessary for Wider Address/Data Paths or Buses With Parity D Flow-Through Architecture Optimizes PCB Layout D Distributed VCC and GND Pin Configuration Minimizes High-Speed Switching Noise D EPIC™ (Enhanced-Performance Implanted CMOS) 1- µm Process D Package Options Include Plastic 300-mil Shrink Small-Outline (DL) Packages Using 25-mil Center-to-Center Pin Spacings and 380-mil Fine-Pitch Ceramic Flat (WD) Packages Using 25-mil Center-to-Center Spacings description The ’ACT16825 18-bit buffers/drivers are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The ’ACT16825 can be used as two 9-bit buffers or one 18-bit buffer. They provide true data from A to Y. The 3-state control gate is a 2-input NOR gate; therefore, if either output-enable (OE1 or OE2) input is high, all nine affected outputs are in the high-impedance state. The 74ACT16825 is packaged in TI’s shrink small-outline package, which provides twice the I/O pin count and functionality of standard small-outline packages in the same printed-circuit-board area. The 54ACT16825 is characterized for operation over the full military temperature range of –55 °C to 125°C. The 74ACT16825 is characterized for operation from –40 °C to 85°C. FUNCTION TABLE (each 9-bit section) INPUTS OUTPUT OE1 OE2 A Y L L L L L LH H H XX Z X H X Z Copyright © 1996, Texas Instruments Incorporated UNLESS OTHERWISE NOTED this document contains PRODUCTION DATA information 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 and Widebus are trademarks of Texas Instruments Incorporated. 54ACT16825 . . . DW PACKAGE 74ACT16825 . . . DL PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 1OE1 1Y1 1Y2 GND 1Y3 1Y4 VCC 1Y5 1Y6 1Y7 GND 1Y8 1Y9 GND GND 2Y1 2Y2 GND 2Y3 2Y4 2Y5 VCC 2Y6 2Y7 GND 2Y8 2Y9 2OE1 1OE2 1A1 1A2 GND 1A3 1A4 VCC 1A5 1A6 1A7 GND 1A8 1A9 GND GND 2A1 2A2 GND 2A3 2A4 2A5 VCC 2A6 2A7 GND 2A8 2A9 2OE2 |
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