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SN74ALB16245DGG Datasheet(PDF) 1 Page - Texas Instruments |
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SN74ALB16245DGG Datasheet(HTML) 1 Page - Texas Instruments |
1 / 7 page SN74ALB16245 3.3-V ALB 16-BIT TRANSCEIVER WITH 3-STATE OUTPUTS SCBS678B – SEPTEMBER 1996 – REVISED JULY 1997 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Member of the Texas Instruments Widebus ™ Family D State-of-the-Art Advanced Low-Voltage BiCMOS (ALB) Technology Design for 3.3-V Operation D Schottky Diodes on All Inputs to Eliminate Overshoot and Undershoot D Industry Standard ’16245 Pinout 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) and Thin Shrink Small-Outline (DGG) Packages description The SN74ALB16245 is a 16-bit transceiver designed for high-speed, low-voltage (3.3-V) VCC operation. This device is intended to replace the conventional transceiver in any speed-critical path. The small propagation delay is achieved using a unity gain amplifier on the input and feedback resistors from input to output, which allows the output to track the input with a small offset voltage. This device can be used as two 8-bit transceivers or one 16-bit transceiver. It allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated. The SN74ALB16245 is characterized for operation from –40 °C to 85°C. FUNCTION TABLE (each 8-bit section) INPUTS OPERATION OE DIR OPERATION L L B data to A bus L H A data to B bus H X Isolation DGG OR 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 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 1DIR 1B1 1B2 GND 1B3 1B4 VCC 1B5 1B6 GND 1B7 1B8 2B1 2B2 GND 2B3 2B4 VCC 2B5 2B6 GND 2B7 2B8 2DIR 1OE 1A1 1A2 GND 1A3 1A4 VCC 1A5 1A6 GND 1A7 1A8 2A1 2A2 GND 2A3 2A4 VCC 2A5 2A6 GND 2A7 2A8 2OE Copyright © 1997, Texas Instruments Incorporated 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. Widebus is a trademark 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. |
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