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SN74ABT16500BDLR Scheda tecnica(PDF) 2 Page - Texas Instruments |
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SN74ABT16500BDLR Scheda tecnica(HTML) 2 Page - Texas Instruments |
2 / 11 page SN54ABT16500B, SN74ABT16500B 18-BIT UNIVERSAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCBS057G – DECEMBER 1990 – REVISED MAY 1997 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 description (continued) When VCC is between 0 and 2.1 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 2.1 V, OE should be tied to VCC through a pullup resistor and OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sinking/current-sourcing capability of the driver. The SN54ABT16500B is characterized for operation over the full military temperature range of –55 °C to 125°C. The SN74ABT16500B is characterized for operation from –40 °C to 85°C. FUNCTION TABLE† INPUTS OUTPUT OEAB LEAB CLKAB A B L X X X Z H HX L L H HX H H H L ↓ LL H L ↓ HH H LH X B0‡ H L L X B0§ † A-to-B data flow is shown: B-to-A flow is similar but uses OEBA, LEBA, and CLKBA. ‡ Output level before the indicated steady-state input conditions were established § Output level before the indicated steady-state input conditions were established, provided that CLKAB was low before LEAB went low |
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