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SN74ABT16245DL Datasheet(PDF) 1 Page - Texas Instruments |
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SN74ABT16245DL Datasheet(HTML) 1 Page - Texas Instruments |
1 / 10 page SN54ABT16245, SN74ABT16245 16BIT BUS TRANSCEIVERS WITH 3STATE OUTPUTS SCBS084B − D3712, JANUARY 1991 − REVISED DECEMBER 1992 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001 Copyright 1992, Texas Instruments Incorporated 3−1 • Members of the Texas Instruments Widebus Family • State-of-the-Art EPIC-ΙΙB BiCMOS Design Significantly Reduces Power Dissipation • Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17 • Typical V OLP (Output Ground Bounce) < 1 V at VCC = 5 V, TA = 25°C • Distributed V CC and GND Pin Configuration Minimizes High-Speed Switching Noise • Flow-Through Architecture Optimizes PCB Layout • High-Drive Outputs (−32-mA I OH, 64-mA IOL) • Packaged in Plastic 300-mil Shrink Small-Outline and Thin Shrink Small-Outline Packages and 380-mil Fine-Pitch Ceramic Flat Packages Using 25-mil Center-to-Center Spacings description The ′ABT16245 is a 16-bit (dual-octal) noninverting 3-state transceiver designed for synchronous two-way communication between data buses. The control function implementation minimizes external timing requirements. 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 upon 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. To ensure the high-impedance state during power up or power down, 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 SN74ABT16245 is available in TI’s shrink small-outline package (DL), which provides twice the I/O pin count and functionality of standard small-outline packages in the same printed-circuit-board area. The SN54ABT16245 is characterized for operation over the full military temperature range of − 55 °C to 125°C. The SN74ABT16245 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 SN54ABT16245 . . . WD PACKAGE SN74ABT16245 . . . 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 Widebus and EPIC- ΙΙB are trademarks of 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. |
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