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SN74LVT125
  • SN74LVT125
  • SN74LVT125
  • SN74LVT125
  • SN74LVT125

SN74LVT125

ACTIVE

4-ch, 2.7-V to 3.6-V buffers with bus-hold, TTL-compatible CMOS inputs and 3-state outputs

Texas Instruments SN74LVT125 Product Info

1 April 2026 0

Parameters

Technology family

LVT

Supply voltage (min) (V)

2.7

Supply voltage (max) (V)

3.6

Number of channels

4

IOL (max) (mA)

64

Supply current (max) (µA)

7000

IOH (max) (mA)

-32

Input type

TTL-Compatible CMOS

Output type

3-State

Features

Bus-hold, Over-voltage tolerant inputs, Partial power down (Ioff), Ultra high speed (tpd <5ns)

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Package

SOIC (D)-14-51.9 mm² 8.65 x 6

Features

  • Supports Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC)
  • Supports Unregulated Battery Operation Down to 2.7 V
  • Typical VOLP (Output Ground Bounce)
       <0.8 V at VCC = 3.3 V, TA = 25°C
  • Ioff Supports Partial-Power-Down Mode Operation
  • Bus-Hold Data Inputs Eliminate the Need for External Pullup Resistors
  • 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)

  • Supports Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC)
  • Supports Unregulated Battery Operation Down to 2.7 V
  • Typical VOLP (Output Ground Bounce)
       <0.8 V at VCC = 3.3 V, TA = 25°C
  • Ioff Supports Partial-Power-Down Mode Operation
  • Bus-Hold Data Inputs Eliminate the Need for External Pullup Resistors
  • 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

This bus buffer is designed specifically for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment.

The SN74LVT125 features independent line drivers with 3-state outputs. Each output is in the high-impedance state when the associated output-enable (OE) input is high.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.

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.

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 bus buffer is designed specifically for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment.

The SN74LVT125 features independent line drivers with 3-state outputs. Each output is in the high-impedance state when the associated output-enable (OE) input is high.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.

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.

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.

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