SN74LVC2G125DCU3屬于集成電路（IC）的緩沖器驅(qū)動器接收器收發(fā)器。由美國德州儀器公司制造生產(chǎn)的SN74LVC2G125DCU3緩沖器，驅(qū)動器，接收器，收發(fā)器邏輯緩沖器、驅(qū)動器、接收器和收發(fā)器允許隔離對某個電路的邏輯信號的訪問，以用于另一電路。緩沖器將其輸入信號（不變或反相）傳遞到其輸出，并可能用于清除弱信號或驅(qū)動負(fù)載。在布爾邏輯仿真器中，緩沖器主要用于增加傳播延遲。邏輯接收器和收發(fā)器允許在數(shù)據(jù)總線之間進(jìn)行隔離通信。

1 Features

1? ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model

– 1000-V Charged-Device Model

? Available in the Texas Instruments

NanoFree? Package

? Supports 5-V VCC Operation

? Inputs Accept Voltages to 5.5 V

? Max tpd of 4.3 ns at 3.3 V

? Low Power Consumption, 10-μA Max ICC

? ±24-mA Output Drive at 3.3 V

? Typical VOLP (Output Ground Bounce)

< 0.8 V at VCC = 3.3 V, TA = 25°C

? Typical VOHV (Output VOH Undershoot)

> 2 V at VCC = 3.3 V, TA = 25°C

? Ioff Supports Live Insertion, Partial-Power-Down

Mode, and Back-Drive Protection

? Can Be Used as a Down Translator to Translate

Inputs From a Max of 5.5 V Down

to the VCC Level

? Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

2 Applications

? Cable Modem Termination Systems

? High-Speed Data Acquisition and Generation

? Military: Radars and Sonars

? Motor Controls: High-Voltage

? Power Line Communication Modems

? SSDs: Internal or External

? Video Broadcasting and Infrastructure: Scalable

Platforms

? Video Broadcasting: IP-Based Multi-Format

Transcoders

? Video Communications Systems

3 Description

The SN74LVC2G125 device is a dual bus buffer

gate, designed for 1.65-V to 5.5-V VCC operation.

This device features dual line drivers with 3-state

outputs. The outputs are disabled when the

associated output-enable (OE) input is high.

NanoFree? package technology is a major

breakthrough in IC packaging concepts, using the die

as the package.

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.

This device is fully specified for partial-power-down

applications using Ioff. The Ioff circuitry disables the

outputs, preventing damaging current backflow

through the device when it is powered down.