Overview
The SN74LVC125APWR, produced by Texas Instruments, is a quadruple bus buffer gate designed for operation within a voltage range of 1.65V to 3.6V. This device features independent line drivers with 3-state outputs, making it suitable for a variety of applications, including mixed 3.3V/5V system environments. Each output is disabled when the associated output-enable (OE) input is high, and the device ensures a high-impedance state during power up or power down by tying OE to VCC through a pull-up resistor.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 1.65V to 3.6V | V |
| Operating Temperature Range | –40°C to 85°C and –40°C to 125°C | °C |
| Input Voltage Range | 0 to 5.5V | V |
| Maximum Propagation Delay (tpd) at 3.3V | 4.8ns | ns |
| Output Current (IOH/IOL) | -24mA / 24mA (at VCC = 3V) | mA |
| Package Type | TSSOP-14 | - |
| Pins | 14 | - |
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
- Maximum propagation delay (tpd) of 4.8ns at 3.3V
- Typical output ground bounce (VOLP) < 0.8V at VCC = 3.3V, TA = 25°C
- Typical output VOH undershoot (VOHV) > 2V at VCC = 3.3V, TA = 25°C
- Latch-up performance exceeds 250mA per JESD 17
Applications
The SN74LVC125APWR is versatile and can be used in various applications, including:
- Mixed 3.3V/5V system environments as a voltage translator
- Buffering and driving signals in digital circuits
- High-speed data transmission systems due to its low propagation delay
- Industrial and automotive applications requiring a wide operating temperature range
Q & A
- What is the operating voltage range of the SN74LVC125APWR?
The SN74LVC125APWR operates from 1.65V to 3.6V.
- What is the maximum propagation delay (tpd) at 3.3V?
The maximum propagation delay (tpd) at 3.3V is 4.8ns.
- What is the package type of the SN74LVC125APWR?
The package type is TSSOP-14.
- Can the inputs accept voltages higher than the VCC?
Yes, the inputs can accept voltages up to 5.5V.
- How do you ensure the high-impedance state during power up or power down?
Ensure the high-impedance state by tying OE to VCC through a pull-up resistor.
- 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 SN74LVC125APWR?
The latch-up performance exceeds 250mA per JESD 17.
- Can this device be used in mixed 3.3V/5V system environments?
Yes, it can be used as a translator in mixed 3.3V/5V system environments.
- What is the operating temperature range of the SN74LVC125APWR?
The operating temperature range is from –40°C to 85°C and –40°C to 125°C.
- What is the maximum continuous output current through VCC or GND?
The maximum continuous output current through VCC or GND is ±100mA.
