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SN74LVCR16245ADL Datasheet(PDF) 2 Page - Texas Instruments |
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SN74LVCR16245ADL Datasheet(HTML) 2 Page - Texas Instruments |
2 / 16 page SN74LVCR16245A 16BIT BUS TRANSCEIVER WITH 3STATE OUTPUTS SCES427A − FEBRUARY 2003 − REVISED NOVEMBER 2004 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 description/ordering information (continued) All outputs, which are designed to sink up to 12 mA, include equivalent 26- W series resistors to reduce overshoot and undershoot. Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment. 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. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. terminal assignments 12 34 5 6 A 1DIR NC NC NC NC 1OE B 1B2 1B1 GND GND 1A1 1A2 C 1B4 1B3 VCC VCC 1A3 1A4 D 1B6 1B5 GND GND 1A5 1A6 E 1B8 1B7 1A7 1A8 F 2B1 2B2 2A2 2A1 G 2B3 2B4 GND GND 2A4 2A3 H 2B5 2B6 VCC VCC 2A6 2A5 J 2B7 2B8 GND GND 2A8 2A7 K 2DIR NC NC NC NC 2OE NC − No internal connection 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 GQL OR ZQL PACKAGE (TOP VIEW) J H G F E D C B A 2 13 4 6 5 K |
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