Overview
The SN74HC125PWR is a quadruple bus buffer gate with 3-state outputs, manufactured by Texas Instruments. This device is part of the 74HC series and is designed to provide buffered inputs and outputs, making it suitable for a variety of digital logic applications. Each gate in the device performs the Boolean function Y = A in positive logic, ensuring that the output directly follows the input when the output enable (OE) is active.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | TSSOP (PW) | |
| Pins | 14 | |
| Operating Temperature Range | -40°C to 85°C | °C |
| Supply Voltage Range | 2 V to 6 V | V |
| Output Current (High, Low) | 7.8 mA, 7.8 mA | mA |
| Input Current | 1 µA (Maximum) | µA |
| Propagation Delay (Typical at 25°C) | 11 ns (CL = 50 pF), 20 ns (CL = 150 pF) | ns |
| Mounting Type | Surface Mount | |
| RoHS Compliance | Yes |
Key Features
- Buffered inputs
- Wide operating voltage range: 2 V to 6 V
- Wide operating temperature range: –40°C to +85°C
- Supports fanout up to 10 LSTTL loads
- Significant power reduction compared to LSTTL logic ICs
- 3-state outputs for high-impedance state during power-up or power-down
- High-current 3-state outputs interface directly with system logic
- Low input current of 1 µA maximum
Applications
- TV Set-Top Boxes and DVRs
- E-meters
- Smart Grids: Transmission Line Monitoring
- Printers and Computer Peripherals
- Building Security: Control Panels
- IP Phones
- Test and Measurement: Range Readers
Q & A
- What is the SN74HC125PWR?
The SN74HC125PWR is a quadruple bus buffer gate with 3-state outputs, designed for digital logic applications.
- What is the operating voltage range of the SN74HC125PWR?
The operating voltage range is 2 V to 6 V.
- What is the operating temperature range of the SN74HC125PWR?
The operating temperature range is –40°C to +85°C.
- How many buffers does the SN74HC125PWR contain?
The device contains four independent buffers.
- What is the propagation delay of the SN74HC125PWR?
The typical propagation delay at 25°C is 11 ns (CL = 50 pF) and 20 ns (CL = 150 pF).
- Is the SN74HC125PWR RoHS compliant?
Yes, the SN74HC125PWR is RoHS compliant.
- What is the package type of the SN74HC125PWR?
The package type is TSSOP (PW) with 14 pins.
- What are some typical applications of the SN74HC125PWR?
Typical applications include TV Set-Top Boxes, E-meters, Smart Grids, Printers, Building Security systems, IP Phones, and Test and Measurement devices.
- How does the 3-state output feature work?
The 3-state output allows the output to be in a high-impedance state during power-up or power-down, which can be controlled by the output enable (OE) pin.
- What is the fanout capability of the SN74HC125PWR?
The device supports fanout up to 10 LSTTL loads.
