SN74LVT125 3.3-V ABT Quadruple Bus Buffers With 3-State Outputs | TI.com

SN74LVT125 (ACTIVE)

3.3-V ABT Quadruple Bus Buffers With 3-State Outputs

3.3-V ABT Quadruple Bus Buffers With 3-State Outputs - SN74LVT125
Datasheet
 

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.

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)

Parametrics

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Part number Order Technology Family VCC (Min) (V) VCC (Max) (V) Bits (#) Voltage (Nom) (V) F @ nom voltage (Max) (MHz) ICC @ nom voltage (Max) (mA) tpd @ nom Voltage (Max) (ns) IOL (Max) (mA) IOH (Max) (mA) Schmitt trigger Rating Operating temperature range (C)
SN74LVT125 Order now LVT     2.7     3.6     4     3.3     100     0.007     4     64     -32     No     Catalog     -40 to 85    
SN74LVT125-EP Order now LVT     2.7     3.6     4     3.3     100     0.007     4.2     32     -32     No     HiRel Enhanced Product     -40 to 125    
SN74LVT125-Q1 Order now LVT     2.7     3.6     4     3.3     100     0.007     4.2     32     -32     No     Automotive     -40 to 125