DM74LS125AM

The DM74LS125AM from ON Semiconductor is a versatile Quad 3-STATE Buffer integrated circuit. Each of the four independent gates performs a non-inverting buffer function, with outputs capable of 3-STATE operation. This feature allows the outputs to exhibit low impedance characteristics when enabled, providing significant drive capability for bus lines without external resistors. When disabled, the outputs enter a high-impedance state, preventing them from acting as a load or driver on the bus.

Designed for reliable operation, the DM74LS125AM operates within a supply voltage range of 4.75V to 5.25V and functions across an ambient temperature range of 0°C to 70°C. The device is available in a 14-SOIC surface mount package, making it suitable for various electronic assemblies. Its electrical characteristics include a high-level output current of -2.6mA and a low-level output current of 24mA, with an input clamp voltage of -1.5V.

This buffer is ideal for applications requiring bus interfacing and signal buffering where multiple devices share a common data line. The 3-STATE capability is crucial for managing data flow in bus-oriented systems, minimizing contention and ensuring signal integrity. The device's design prioritizes minimizing the possibility of two outputs attempting to drive a common bus to opposite logic levels, with a disable time shorter than the enable time.