Overview
The SN74ABT125PWRE4, produced by Texas Instruments, is a quadruple bus buffer gate with TTL-compatible CMOS inputs and 3-state outputs. This component is designed for use in a variety of digital systems where buffer functionality is required. Each output is independently controlled by an output-enable (OE) input, allowing for flexible operation in different application scenarios. The device is fully specified for hot-insertion applications and features power-up 3-state circuitry to prevent driver conflicts during power cycles.
Key Specifications
| Parameter | Value |
|---|---|
| Package | TSSOP (PW) with 14 pins |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Output Current (IOH, IOL) | 32 mA (IOH), 64 mA (IOL) |
| ESD Protection | 2000-V Human-Body Model, 200-V Machine Model |
| Latch-Up Performance | Exceeds 500 mA per JEDEC Standard JESD-17 |
Key Features
- Independent line drivers with 3-state outputs
- High-drive outputs with 32-mA IOH and 64-mA IOL
- Ioff and power-up 3-state support for hot insertion
- Low output ground bounce (<1 V at VCC = 5 V, TA = 25°C)
- ESD protection exceeds JESD 22 standards
- Latch-up performance exceeds 500 mA per JEDEC Standard JESD-17
Applications
The SN74ABT125PWRE4 is suitable for various digital systems requiring buffer functionality, such as data transmission lines, bus systems, and hot-swappable applications. It is particularly useful in scenarios where independent control of each output is necessary and where the device needs to be inserted or removed while the system is powered on.
Q & A
- What is the package type of the SN74ABT125PWRE4?
The SN74ABT125PWRE4 comes in a TSSOP (PW) package with 14 pins. - What is the operating temperature range of the SN74ABT125PWRE4?
The operating temperature range is -40°C to 85°C. - What is the supply voltage range for the SN74ABT125PWRE4?
The supply voltage range is 4.5 V to 5.5 V. - What are the output current capabilities of the SN74ABT125PWRE4?
The output current capabilities are 32 mA (IOH) and 64 mA (IOL). - Does the SN74ABT125PWRE4 have ESD protection?
Yes, it exceeds 2000-V Human-Body Model and 200-V Machine Model ESD protection. - What is the latch-up performance of the SN74ABT125PWRE4?
It exceeds 500 mA per JEDEC Standard JESD-17. - How are the outputs controlled in the SN74ABT125PWRE4?
Each output is independently controlled by an output-enable (OE) input. - Is the SN74ABT125PWRE4 suitable for hot-insertion applications?
Yes, it is fully specified for hot-insertion applications with Ioff and power-up 3-state support. - What is the purpose of the power-up 3-state circuitry in the SN74ABT125PWRE4?
The power-up 3-state circuitry places the outputs in a high-impedance state during power up and power down to prevent driver conflicts. - How should the OE input be connected to ensure the high-impedance state during power cycles?
The OE input should be tied to VCC through a pullup resistor.
