Overview
The SN74LVC125APWRG4 is a quadruple bus buffer gate produced by Texas Instruments. This device is designed for operation within a wide voltage range of 1.65V to 3.6V, making it versatile for various electronic systems. It features independent line drivers with 3-state outputs, allowing each output to be disabled when the associated output-enable (OE) input is high. This functionality is particularly useful in mixed 3.3V/5V system environments, enabling the device to act as a voltage translator.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 1.65 to 3.6 | V |
| Operating Temperature Range | –40 to 125 | °C |
| Maximum Propagation Delay (tpd) at 3.3V | 4.8 | ns |
| Typical Output Ground Bounce (VOLP) at VCC = 3.3V, TA = 25°C | < 0.8 | V |
| Typical Output VOH Undershoot (VOHV) at VCC = 3.3V, TA = 25°C | > 2 | V |
| Package Type | TSSOP (PW) | |
| Number of Pins | 14 | |
| Latch-up Performance | > 250mA per JESD 17 |
Key Features
- 3-State outputs with separate OE for all 4 buffers
- Operates from 1.65V to 3.6V, allowing for use in mixed 3.3V/5V systems
- Inputs accept voltages up to 5.5V
- Low propagation delay: maximum tpd of 4.8ns at 3.3V
- Low output ground bounce and VOH undershoot
- Latch-up performance exceeds 250mA per JESD 17
- Ioff feature supports Live Insertion, Partial Power-Down Mode, and Back-Drive Protection
Applications
The SN74LVC125APWRG4 is suitable for a variety of applications, including:
- Mixed 3.3V/5V system environments where voltage translation is necessary
- High-speed data transmission systems requiring low propagation delays
- Systems that require 3-state outputs for bus control
- Applications needing live insertion, partial power-down mode, and back-drive protection
Q & A
- What is the operating voltage range of the SN74LVC125APWRG4?
The operating voltage range is from 1.65V to 3.6V.
- What is the maximum propagation delay at 3.3V for the SN74LVC125APWRG4?
The maximum propagation delay at 3.3V is 4.8ns.
- 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 package type is the SN74LVC125APWRG4 available in?
The device is available in a TSSOP (PW) package with 14 pins.
- Can the SN74LVC125APWRG4 be used in mixed 3.3V/5V systems?
- What is the latch-up performance of the SN74LVC125APWRG4?
The latch-up performance exceeds 250mA per JESD 17.
- How should the OE input be managed during power up or power down?
The OE input should be tied to VCC through a pullup resistor to ensure the high-impedance state.
- What is the Ioff feature and its benefits?
The Ioff feature supports Live Insertion, Partial Power-Down Mode, and Back-Drive Protection, enhancing the device's usability in various power management scenarios.
- What are some common applications for the SN74LVC125APWRG4?
- What is the operating temperature range of the SN74LVC125APWRG4?
The operating temperature range is from –40°C to 125°C.
