Overview
The SN74ABT125D is a quadruple bus buffer gate produced by Texas Instruments. This integrated circuit features four independent line drivers with 3-state outputs, making it suitable for various digital logic applications. The device operates within a voltage range of 4.5V to 5.5V and is packaged in a 14-pin SOIC (Small Outline Integrated Circuit) package. It is fully specified for hot-insertion applications and includes power-up 3-state and Ioff circuitry to prevent damaging current backflow and driver conflict during power transitions.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | SOIC (D) 14 pins |
| Operating Temperature Range (°C) | -40 to 85 |
| Supply Voltage Range (V) | 4.5 to 5.5 |
| Supply Voltage Nominal (V) | 5 |
| Supply Current Max (mA) | 30 |
| Output Low Current Max (mA) | 64 |
| Output High Current Max (mA) | 32 |
| Propagation Delay Max @ Nominal Supply (ns) | 4.9 |
| Output Characteristics | 3-state |
| ESD Protection | 2000-V Human-Body Model, 200-V Machine Model |
| Latch-Up Performance | Exceeds 500 mA per JEDEC Standard JESD-17 |
| Moisture Sensitivity Level | 1 |
| Peak Reflow Temperature (°C) | 260 |
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
- ESD Protection Exceeds JESD 22 (2000-V Human-Body Model, 200-V Machine Model)
- Latch-Up Performance Exceeds 500 mA per JEDEC Standard JESD-17
Applications
The SN74ABT125D is designed for use in various digital logic and bus buffer applications, particularly where hot insertion and power-up 3-state capabilities are required. It is suitable for systems that need high-drive outputs and robust ESD protection. Common applications include computer peripherals, networking equipment, and other digital systems requiring reliable bus buffering.
Q & A
- What is the operating voltage range of the SN74ABT125D?
The operating voltage range is 4.5V to 5.5V. - What type of package does the SN74ABT125D come in?
The device is packaged in a 14-pin SOIC (D) package. - What is the maximum operating temperature of the SN74ABT125D?
The maximum operating temperature is 85°C. - Does the SN74ABT125D support hot insertion?
Yes, it supports hot insertion with Ioff and power-up 3-state circuitry. - What is the propagation delay of the SN74ABT125D?
The propagation delay is 4.9 ns at nominal supply voltage. - What kind of ESD protection does the SN74ABT125D have?
The device has ESD protection exceeding JESD 22 standards (2000-V Human-Body Model, 200-V Machine Model). - Is the SN74ABT125D RoHS compliant?
Yes, the SN74ABT125D is RoHS compliant. - What is the output current capability of the SN74ABT125D?
The output current capability is up to 64 mA for low output and 32 mA for high output. - How many channels does the SN74ABT125D have?
The device has four independent channels. - What is the purpose of the Ioff circuitry in the SN74ABT125D?
The Ioff circuitry disables the outputs to prevent damaging current backflow when the device is powered down.
