ON Semiconductor MC74LCX125DTG - Low-Voltage CMOS Quad Buffer

The MC74LCX125DTG from ON Semiconductor is a high-performance, quad buffer that operates with a low voltage and is designed for use in systems that interface with both 3.3V and 5V supply levels. This device is part of ON Semiconductor's LCX family, which is known for its low power consumption and high noise immunity, making it an excellent choice for a wide range of applications, including computing, networking, and telecommunications.

This particular buffer features four independent non-inverting buffer gates with 3-state outputs. Each gate is equipped with its own output-enable (OE) input, which, when held high, places the gate's output in a high impedance state. This is particularly useful for creating bidirectional interfaces, as it allows multiple devices to share a common data bus without the risk of contention or data corruption.

The MC74LCX125DTG is designed to operate with a supply voltage range of 2.3V to 3.6V, ensuring compatibility with low-voltage systems and providing a power-efficient solution. Additionally, it is capable of interfacing with 5V logic signals without any additional components, thanks to its 5V tolerant inputs.

Key features of the MC74LCX125DTG include:

• Low-voltage operation: 2.3V to 3.6V
• High-speed operation: t<sub>PD = 4.5ns (max) at V<sub>CC = 3.3V
• 5V tolerant inputs for interfacing with 5V logic levels
• Power down high impedance inputs and outputs
• Supports live insertion and withdrawal (partial power-down)
• IOFF and power-up 3-state support
• Low quiescent current: I<sub>CC = 4µA (max)
• ESD performance: HBM > 2000V; Machine Model > 200V
• Industry-standard TSSOP-14 packaging for easy integration

The MC74LCX125DTG also boasts an impressive electrostatic discharge (ESD) performance, ensuring robustness and reliability in environments where static discharge can be a concern. Its compact TSSOP-14 package allows for efficient use of PCB space, and its standard pinout ensures easy drop-in replacement in existing designs.

Whether you're designing a new system or upgrading an existing one, the MC74LCX125DTG from ON Semiconductor offers a versatile and reliable solution for your buffering needs.