Back to Texas Instruments

Texas Instruments SN74LV125AT Quad Bus Buffer Gates

Texas Instruments SN74LV125AT Quad Bus Buffer Gates have independent line drivers with 3-state outputs. Each output is disabled when the associated output-enable (/OE) input is high. The /OE should be tied to VCC through a pull-up resistor to ensure the high-impedance state during power up or down. The driver's current-sinking capability determines the minimum value of the resistor. The Texas Instruments SN74LV125AT is fully specified for partial power-down applications using the Ioff circuitry. When powered down, the Ioff circuitry disables the outputs and prevents a damaging current backflow through the device.

Features

  • Inputs are TTL-voltage compatible
  • 4.5V to 5.5V VCC operation
  • Typical tpd of 3.8ns at 5V
  • Typical VOLP (output ground bounce) < 0.8V at VCC = 5V, TA = 25°C
  • Typical VOHV (output VOH undershoot) > 2.3V at VCC = 5V, TA = 25°C
  • Supports mixed-mode voltage operation on all ports
  • Ioff supports partial-power-down mode operation
  • Latch-up performance exceeds 250mA per JESD 17

Applications

  • Flow meters
  • Solid State Drives (SSDs) (enterprise)
  • Power Over Ethernet (PoE)
  • Programmable Logic Controllers (PLCs)
  • Motor drives and controls
  • Electronic Points of Sale (POS)

Logic Diagram (Positive Logic)

Block Diagram - Texas Instruments SN74LV125AT Quad Bus Buffer Gates

Development Tools

Texas Instruments 14-24-LOGIC-EVM Logic Evaluation Module (EVM)

Generic evaluation module developed to support any TI logic leaded device in a 14 to 24 pin count.

Learn Moreabout Texas Instruments 14-24-LOGIC-EVM Logic Evaluation Module (EVM) View Productsrelated to Texas Instruments 14-24-LOGIC-EVM Logic Evaluation Module (EVM)

Texas Instruments 14-24-NL-LOGIC-EVM Logic Evaluation Module (EVM)

Supports any logic or translation device in a BQA, BQB, RGY (14-24 pin), RSV, RJW, or RHL package.

Learn Moreabout Texas Instruments 14-24-NL-LOGIC-EVM Logic Evaluation Module (EVM) View Productsrelated to Texas Instruments 14-24-NL-LOGIC-EVM Logic Evaluation Module (EVM)
Published: 2025-04-29 | Updated: 2025-05-12