Overview
The SN74ABT125PWR is a quadruple bus buffer gate produced by Texas Instruments. This component features independent line drivers with 3-state outputs, making it suitable for a variety of digital logic applications. Each output is disabled when the associated output-enable (OE) input is high, and the device is fully specified for hot-insertion applications using Ioff and power-up 3-state circuitry. This ensures that the outputs are in a high-impedance state during power up and power down, preventing driver conflict.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | TSSOP (PW) | - |
| Pins | 14 | - |
| Operating Temperature Range | -40 to 85 | °C |
| Supply Voltage Range | 4.5 to 5.5 | V |
| High-Level Input Voltage | 2 | V |
| Low-Level Input Voltage | 0.8 | V |
| High-Level Output Current | -32 | mA |
| Low-Level Output Current | 64 | mA |
| Input Transition Rise or Fall Rate | 10 | ns/V |
| Power-Up Ramp Rate | 200 | μs/V |
Key Features
- Typical VOLP (Output Ground Bounce) < 1 V at VCC = 5 V, TA = 25°C.
- High-Drive Outputs (32-mA IOH, 64-mA IOL).
- Ioff and Power-Up 3-State Support for Hot Insertion.
- 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 SN74ABT125PWR is designed for use in various digital logic applications, including:
- Hot-insertion applications where devices need to be powered up or down without causing damage or conflicts.
- Systems requiring high-drive outputs to drive heavy loads or long bus lines.
- Applications needing robust ESD protection to ensure device reliability.
- General-purpose digital logic circuits where 3-state outputs are necessary.
Q & A
- What is the package type of the SN74ABT125PWR?
The SN74ABT125PWR comes in a TSSOP (PW) package with 14 pins.
- What is the operating temperature range of the SN74ABT125PWR?
The operating temperature range is -40°C to 85°C.
- What are the supply voltage and input voltage ranges for the SN74ABT125PWR?
The supply voltage range is 4.5 V to 5.5 V, and the input voltage range is 0 to VCC.
- What are the high-level and low-level output currents of the SN74ABT125PWR?
The high-level output current is -32 mA, and the low-level output current is 64 mA.
- Does the SN74ABT125PWR support hot insertion?
Yes, it supports hot insertion with Ioff and power-up 3-state circuitry.
- What kind of ESD protection does the SN74ABT125PWR have?
The device has ESD protection exceeding JESD 22 standards, including 2000-V Human-Body Model and 200-V Machine Model.
- How do I ensure the high-impedance state during power up or power down?
To ensure the high-impedance state, the OE input should be tied to VCC through a pullup resistor.
- What are the typical propagation delay times for the SN74ABT125PWR?
The propagation delay times vary but are typically around 1-6 ns for different conditions.
- Is the SN74ABT125PWR RoHS compliant?
Yes, the device is RoHS compliant and free of Sb/Br.
- What are some common applications for the SN74ABT125PWR?
Common applications include hot-insertion systems, high-drive output requirements, and general-purpose digital logic circuits.
