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SN74CB3T1G125DCKR Folha de dados(PDF) 2 Page - Texas Instruments |
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SN74CB3T1G125DCKR Folha de dados(HTML) 2 Page - Texas Instruments |
2 / 12 page SN74CB3T1G125 SINGLE FET BUS SWITCH 2.5V/3.3V LOW VOLTAGE BUS SWITCH WITH 5V TOLERANT LEVEL SHIFTER SCDS150 − OCTOBER 2003 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 description/ordering information (continued) VCC ≈VCC 5.5 V 0 V NOTE A: If the input high voltage (VIH) level is greater than or equal to VCC − 1 V, and less than or equal to 5.5 V, then the output high voltage (VOH) level will be equal to approximately the VCC voltage level. Input Voltages Output Voltages 0 V ≈VCC − 1 V ≈VCC − 1 V VCC IN OUT CB3T Figure 1. Typical DC Voltage-Translation Characteristics This device is fully specified for partial-power-down applications using Ioff. The Ioff feature ensures that damaging current will not backflow through the device when it is powered down. The device has isolation during power off. 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. FUNCTION TABLE INPUT INPUT/OUTPUT FUNCTION INPUT OE INPUT/OUTPUT A FUNCTION L B A port = B port H Z Disconnect logic diagram (positive logic) OE B A SW 2 1 4 |
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