Qualified for Automotive Applications

Typical VOLP (Output Ground Bounce)

<1 V at VCC = 5 V, TA = 25°C

High-Drive Outputs

(−16-mA IOH, 32-mA IOL)

Ioff and Power-Up 3-State Support Hot

Insertion

Latch-Up Performance Exceeds 500 mA Per

JEDEC Standard JESD-17

ESD Protection Exceeds JESD 22

− 2000-V Human-Body Model (A114-A)

− 200-V Machine Model (A115-A)

description/ordering information

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.