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SN74LVT543NSR Datasheet(PDF) 2 Page - Texas Instruments |
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SN74LVT543NSR Datasheet(HTML) 2 Page - Texas Instruments |
2 / 15 page SN54LVT543, SN74LVT543 3.3-V ABT OCTAL REGISTERED TRANSCEIVERS WITH 3-STATE OUTPUTS SCBS137D – MAY 1992 – REVISED JULY 1995 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 description (continued) 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 SN74LVT543 is available in TI’s shrink small-outline package (DB), which provides the same I/O pin count and functionality of standard small-outline packages in less than half the printed-circuit-board area. The SN54LVT543 is characterized for operation over the full military temperature range of – 55 °C to 125°C. The SN74LVT543 is characterized for operation from – 40 °C to 85°C. FUNCTION TABLE† INPUTS OUTPUT CEAB LEAB OEAB A B H X X X Z X XH X Z L HL X B0‡ L LL L L L L L H H † A-to-B data flow is shown; B-to-A flow control is the same except that it uses CEBA, LEBA, and OEBA. ‡ Output level before the indicated steady-state input conditions were established logic symbol§ 1 1 4 2C6 14 3 A1 4 A2 B1 22 5D 5 A3 6 A4 7 A5 8 A6 9 A7 10 A8 B2 21 B3 20 B5 18 B4 19 B6 17 B8 15 B7 16 LEAB 3 G2 11 CEAB 2EN4 13 OEAB 1C5 1 LEBA G1 23 CEBA 1EN3 2 OEBA 6D § This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for the DB, DW, JT, and PW packages. |
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