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ACTIVE
Technology family |
ABT |
Supply voltage (min) (V) |
4.5 |
Supply voltage (max) (V) |
5.5 |
Number of channels |
4 |
IOL (max) (mA) |
32 |
Supply current (max) (µA) |
30000 |
IOH (max) (mA) |
-16 |
Input type |
TTL-Compatible CMOS |
Output type |
3-State |
Features |
Over-voltage tolerant inputs, Partial power down (Ioff), Power up 3-state, Ultra high speed (tpd <5ns) |
Rating |
Automotive |
Operating temperature range (°C) |
-40 to 125 |
SOIC (D)-14-51.9 mm² 8.65 x 6
The SN74ABT125Q-Q1 quadruple bus buffer gate features independent line drivers with 3-state outputs. Each output is disabled when the associated output-enable (OE) input is high.
This device is fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict.
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.
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