Overview
The SN74LVC125APWTG4 is a quadruple bus buffer gate produced by Texas Instruments. This device is designed to operate within a voltage range of 1.65V to 3.6V, making it versatile for various system environments. It features independent line drivers with 3-state outputs, which can be disabled when the associated output-enable (OE) input is high. This component is suitable for use in mixed 3.3V/5V system environments, allowing it to act as a translator between different voltage levels.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | TSSOP (PW) | - |
| Pins | 14 | - |
| Operating Temperature Range | -40 to 125 | °C |
| VCC Supply Voltage Range | 1.65 to 3.6 | V |
| Input Voltage Range | -0.5 to 6.5 | V |
| Output Voltage Range | -0.5 to VCC + 0.5 | V |
| Continuous Output Current | ±50 | mA |
| Propagation Delay Time (tpd) at 3.3V | 4.8 | ns |
| Typical VOLP (Output Ground Bounce) at VCC = 3.3V, TA = 25°C | < 0.8 | V |
| Typical VOHV (Output VOH Undershoot) at VCC = 3.3V, TA = 25°C | > 2 | V |
Key Features
- 3-State outputs
- Separate OE (Output Enable) for all 4 buffers
- Operates from 1.65V to 3.6V
- Specified from –40°C to 85°C and –40°C to 125°C
- Inputs accept voltages up to 5.5V
- Max tpd of 4.8ns at 3.3V
- Typical VOLP (output ground bounce) < 0.8V at VCC = 3.3V, TA = 25°C
- Typical VOHV (output VOH undershoot) > 2V at VCC = 3.3V, TA = 25°C
- Latch-up performance exceeds 250mA per JESD 17
Applications
The SN74LVC125APWTG4 is suitable for a variety of applications, including:
- Mixed 3.3V/5V system environments where it can act as a voltage translator.
- Buffering and driving signals in high-speed digital systems.
- Implementing logic functions in digital circuits.
- Providing isolation and signal conditioning in data transmission lines.
Q & A
- What is the operating voltage range of the SN74LVC125APWTG4?
The SN74LVC125APWTG4 operates from 1.65V to 3.6V.
- What is the maximum propagation delay time (tpd) at 3.3V?
The maximum propagation delay time (tpd) at 3.3V is 4.8ns.
- Can the inputs of the SN74LVC125APWTG4 be driven from 5V devices?
- What is the typical output ground bounce (VOLP) at VCC = 3.3V and TA = 25°C?
The typical output ground bounce (VOLP) is less than 0.8V.
- What is the latch-up performance of the SN74LVC125APWTG4?
The latch-up performance exceeds 250mA per JESD 17.
- What is the purpose of the separate OE (Output Enable) inputs for each buffer?
The separate OE inputs allow each output to be disabled independently when the associated OE input is high.
- What is the recommended way to ensure high-impedance state during power up or power down?
OE should be tied to VCC through a pullup resistor.
- What is the maximum continuous output current?
The maximum continuous output current is ±50 mA.
- What is the operating temperature range of the SN74LVC125APWTG4?
The operating temperature range is from –40°C to 125°C.
- What type of package does the SN74LVC125APWTG4 come in?
The SN74LVC125APWTG4 comes in a TSSOP (PW) package with 14 pins.
