Overview
The SN74LVT125PWR is a quadruple bus buffer produced by Texas Instruments, designed for low-voltage (3.3-V) VCC operation with the capability to interface with 5-V systems. This device features independent line drivers with 3-state outputs, making it suitable for a variety of applications requiring signal buffering and level translation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | TSSOP (PW) | |
| Pins | 14 | |
| Operating Temperature Range | -40 to 85 | °C |
| Supply Voltage Range | -0.5 to 4.6 | V |
| Input Voltage Range | -0.5 to VCC + 0.5 | V |
| Output Clamp Current (VO < 0) | -50 | mA |
| Propagation Delay Time (tPLH, tPHL) at VCC = 3.3 V | 2.7 to 4.9 | ns |
| Package Thermal Impedance (θJA) | 113 | °C/W |
| Storage Temperature Range | -65 to 150 | °C |
Key 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) and 200-V Machine Model (A115-A)
Applications
The SN74LVT125PWR is suitable for various applications requiring signal buffering, level translation, and 3-state output control. These include:
- Low-voltage (3.3-V) systems that need to interface with 5-V systems
- Partial-power-down applications where Ioff is necessary to prevent current backflow
- Systems requiring bus-hold circuitry to maintain valid logic states on unused or undriven inputs
- Applications demanding high ESD protection and latch-up performance
Q & A
- What is the operating temperature range of the SN74LVT125PWR?
The operating temperature range is -40°C to 85°C.
- What is the supply voltage range for the SN74LVT125PWR?
The supply voltage range is -0.5 V to 4.6 V.
- Does the SN74LVT125PWR support mixed-mode signal operation?
- What is the typical output ground bounce (VOLP) at VCC = 3.3 V and TA = 25°C?
OLP is less than 0.8 V. - Does the SN74LVT125PWR have ESD protection?
- What is the purpose of the bus-hold circuitry in the SN74LVT125PWR?
- Can the SN74LVT125PWR be used in partial-power-down applications?
- What is the propagation delay time for the SN74LVT125PWR at VCC = 3.3 V?
PLH, tPHL) ranges from 2.7 to 4.9 ns). - What package types are available for the SN74LVT125?
- How does the Ioff feature work in the SN74LVT125PWR?
off circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down).
