3.3-V Bus driver

1-V Micro Processor

0.1 µF

1 V regulated

Driver

µC

SN74AUP1G08

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SCES502O – NOVEMBER 2003 – REVISED JUNE 2014

10 Application and Implementation

10.1 Application Information

The AUP family is TI's premier solution to the industry’s low-power needs in battery-powered portable

of 0.8 V to 3.6 V, resulting in an increased battery life. This product also maintains excellent signal integrity. It

has a small amount of hysteresis built in allowing for slower or noisy input signals. The lowered drive produces

slower edges and prevents overshoot and undershoot on the outputs.

The AUP family of single gate logic makes excellent translators for the new lower voltage Micro- processors that

typically are powered from 0.8 V to 1.2 V. They can drop the voltage of peripheral drivers and accessories that

are still powered by 3.3 V to the new µC power levels.

10.2 Typical Application

Figure 5. Typical Application Schematic

10.2.1 Design Requirements

This device uses CMOS technology and has balanced output drive. Care should be taken to avoid bus

contention because it can drive currents that would exceed maximum limits.

10.2.2 Detailed Design Procedure

1. Recommended Input conditions

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Rise time and fall time specifications. See (

Δt/ΔV) in Recommended Operating Conditions table.

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2. Recommend output conditions

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Load currents should not exceed 20 mA on the output and 50 mA total for the part

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