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SN74BCT25244NTE4 数据表(PDF) 1 Page - Texas Instruments |
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SN74BCT25244NTE4 数据表(HTML) 1 Page - Texas Instruments |
1 / 12 page SN54BCT25244, SN74BCT25244 25- Ω OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCBS064A – JUNE 1990 – REVISED NOVEMBER 1993 Copyright © 1993, Texas Instruments Incorporated 2–1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 • State-of-the-Art BiCMOS Design Significantly Reduces ICCZ • ESD Protection Exceeds 2000 V Per MIL-STD-883C, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0) • Designed to Facilitate Incident-Wave Switching for Line Impedances of 25 Ω or Greater • Distributed V CC and GND Pins Minimize Noise Generated by the Simultaneous Switching of Outputs • Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK) and Flatpacks (W), and Standard Plastic and Ceramic 300-mil DIPs (JT, NT) description These 25- Ω octal buffers and line 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. These buffers are capable of sinking 188-mA IOL, which facilitates switching 25- Ω transmission lines on the incident wave. The distributed VCC and GND pins minimize switching noise for more reliable system operation. When the output-enable (1OE and 2OE) inputs are low, the device transmits data from the A inputs to the Y outputs. When 1OE and 2OE are high, the outputs are in the high-impedance state. The SN54BCT25244 is characterized for operation over the full military temperature range of – 55 °C to 125°C. The SN74BCT25244 is characterized for operation from 0 °C to 70°C. FUNCTION TABLE (each buffer/driver) INPUTS OUTPUT OE A Y L H H L LL H X Z 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 1Y1 GND 1Y2 1Y3 GND 1Y4 2Y1 GND 2Y2 2Y3 GND 2Y4 1OE 1A1 1A2 VCC 1A3 1A4 2A1 2A2 VCC 2A3 2A4 2OE SN54BCT25244 . . . JT OR W PACKAGE SN74BCT25244 . . . DW OR NT PACKAGE (TOP VIEW) 32 1 28 27 12 13 5 6 7 8 9 10 11 25 24 23 22 21 20 19 2OE 2Y4 GND NC 2Y3 2Y2 GND 1A3 VCC 1A2 NC 1A1 1OE 1Y1 426 14 15 16 17 18 SN54BCT25244 . . . FK PACKAGE (TOP VIEW) NC – No internal connection 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. |
类似零件编号 - SN74BCT25244NTE4 |
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类似说明 - SN74BCT25244NTE4 |
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