Product Descriptions

This quadruple bus buffer gate is designed for 1.65V to 3.6V VCC operation.

The SN74LVC125A device features independent line drivers with 3-state outputs. Each output is disabled when the associated output-enable (OE) input is high.

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.

Inputs can be driven from either 3.3V or 5V devices. This feature allows the use of this device as a translator in a mixed 3.3V/5V system environment.

Product Features

• 3-State outputs

• Separate OE for all 4 buffers

• Operates from 1.65V to 3.6V

• Specified from –40°C to 85°C and –40°C to 125°C

• Inputs accept voltages to 5.5V

• Max tpd of 4.8ns at 3.3V

• Typical VOLP (output ground bounce)

< 0.8V at VCC = 3.3V, TA = 25°C

• Typical VOHV (output VOH undershoot)

> 2V at VCC = 3.3V, TA = 25°C

• Latch-up performance exceeds 250mA per JESD 17

Product Applications

• Cable modem termination systems

• IP phones: wired and wireless

• Optical modules

• Optical networking:

– EPON or video over fiber

• Point-to-point microwave backhaul

• Power: telecom DC/DC modules:

– Analog or digital

• Private branch exchanges (PBX)

• TETRA base stations

• Telecom base band units

• Telecom shelters:

– Filter units

– Power distribution units (PDU)

– Power monitoring units (PMU)

– Wireless battery monitoring

– Remote electrical tilt units (RET)

– Remote radio units (RRU)

– Tower mounted amplifiers (TMA)

• Vector signal analyzers and generators

• Video conferencing: IP-based HD

• WiMAX and wireless infrastructure equipment

• Wireless communications testers

• xDSL modems and DSLAM

Product Photos

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