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SN74ABT162825DL Folha de dados(PDF) 1 Page - Texas Instruments |
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SN74ABT162825DL Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 7 page SN54ABT162825, SN74ABT162825 18-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCBS474C – JUNE 1994 – REVISED MAY 1997 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Members of the Texas Instruments Widebus ™ Family D Output Ports Have Equivalent 25-Ω Series Resistors, So No External Resistors Are Required D State-of-the-Art EPIC-ΙΙB™ BiCMOS Design Significantly Reduces Power Dissipation D Typical VOLP (Output Ground Bounce) < 1 V at VCC = 5 V, TA = 25°C D High-Impedance State During Power Up and Power Down D Distributed VCC and GND Pin Configuration Minimizes High-Speed Switching Noise D Flow-Through Architecture Optimizes PCB Layout D Package Options Include Plastic 300-mil Shrink Small-Outline (DL) Package and 380-mil Fine-Pitch Ceramic Flat (WD) Package Using 25-mil Center-to-Center Spacings description The ’ABT162825 are 18-bit buffers and line drivers designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. These devices provide true data, and can be used as two 9-bit buffers or one 18-bit buffer. The 3-state control gate is a 2-input AND gate with active-low inputs so that if either output-enable (OE1 or OE2) input is high, all nine affected outputs are in the high-impedance state. The outputs, which are designed to source or sink up to 12 mA, include equivalent 25- Ω series resistors to reduce overshoot and undershoot. When VCC is between 0 and 2.1 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 2.1 V, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The SN54ABT162825 is characterized for operation over the full military temperature range of –55 °C to 125°C. The SN74ABT162825 is characterized for operation from –40 °C to 85°C. Copyright © 1997, 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. Widebus and EPIC- ΙΙB are trademarks of Texas Instruments Incorporated. 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. SN54ABT162825 . . . WD PACKAGE SN74ABT162825 . . . 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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Descrição semelhante - SN74ABT162825DL |
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