SN74LVC126A Quadruple Bus Buffer Gate With 3-State Outputs

1 Features

• Operates from 1.65V to 3.6V

• Specified from –40°C to +125°C

• Inputs accept voltages up to 5.5V

• Maximum tpd of 4.7ns 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

2 Applications

• AV Receivers

• Audio Docks: Portable

• Blu-ray Players and Home Theaters

• MP3 Players or Recorders

• Personal Digital Assistants (PDAs)

• Power: Telecom, Server, and AC-DC Supplies

(Single-Controller, Analog, and Digital)

• Solid State Drives (SSDs): Client and Enterprise

• TVs: LCD, Digital, and High-Definition (HDTV)

• Tablets: Enterprise

• Video Analytics: Server

• Wireless Headsets, Keyboards, and Mice

3 Description

The SN74LVC126A device is a quadruple bus buffer

gate designed for 1.65V to 3.6V VCC operation.

The SN74LVC126A device features independent line

drivers with 3-state outputs. Each output is disabled

when the associated output-enable (OE) input is low.

To ensure the high-impedance state during power up

or power down, OE must be tied to GND through a

pulldown resistor; the minimum value of the resistor

is determined by the current-sourcing 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 and 5V system

environment.

Package Information

PART NUMBER

PACKAGE (1)

PACKAGE

SIZE(2)

BODY SIZE(3)

SN74LVC126A

BQA (WQFN, 14)

3mm × 2.5mm

3mm × 2.5mm

D (SOIC, 14)

8.65mm x 6mm

8.65mm × 3.91mm

DB (SSOP, 14)

6.2mm x 7.8mm

6.20mm × 5.30mm

DGV (TVSOP, 14)

3.60mm × 6.4mm

3.60mm × 4.40mm

NS (SOP, 14)

10.2mm x 7.8mm

10.20mm × 5.30mm

PW (TSSOP, 14)

5mm x 6.4mm

5.00mm × 4.40mm

RGY (VQFN, 14)

3.50mm ×

3.50mm

3.50mm × 3.50mm

(1)

For more information, see Mechanical, Packaging, and

Orderable Information.

(2)

The package size (length × width) is a nominal value and

includes pins, where applicable.

(3)

The body size (length × width) is a nominal value and does

not include pins.

1

1OE

2

1A

1Y

3

4

2OE

5

2A

2Y

6

10

3OE

9

3A

3Y

8

13

4OE

12

4A

4Y

11

Copyright © 2016, Texas Instruments Incorporated

Simplified Schematic

SN74LVC126A

SCAS339T – MARCH 1994 – REVISED MAY 2024

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.