74LS125 Quad Non-Inverting Buffer | 3-State Outputs | DIP-14

Description

The 74LS125 is a Quad 3-state non-inverting buffer. It features four independent buffers, each controlled by an individual active-LOW Output Enable (OE-bar) input. Unlike standard buffers that always drive the signal to a HIGH or LOW state, this device allows the output to be placed into a high-impedance (high-Z) state when the enable pin is HIGH.

This “3-state” capability is essential for bus-oriented systems, as it allows multiple devices to be connected to the same communication line without signal contention. The device is specifically engineered with “break-before-make” timing, where the disable time is shorter than the enable time, ensuring that two outputs never conflict when switching control of a shared bus.

Note: Product images are shown for reference only. The actual product may vary in appearance, manufacturer marking, or logo depending on stock availability.

Features

• Quad (4) independent non-inverting buffers
• 3-state outputs for bus-sharing applications
• Individual active-LOW Output Enable (OE-bar) for each buffer
• High-drive capability for heavy bus loads
• Standard TTL-compatible logic levels
• DIP-14 through-hole package

Benefits

• Enables seamless communication on shared data buses
• High-impedance state prevents electrical contention
• Optimized disable/enable timing ensures bus safety
• Directly drives high-capacitance lines without additional external resistors

Applications

• Bus-Oriented Data Transmission
• Microprocessor Address and Data Bus Buffering
• Peripheral Chip Select Gating
• Digital Signal Isolation
• General Purpose Bus Drivers

Package Includes

• 1 x 74LS125 Quad 3-State Buffer IC (DIP-14 Package)

Specifications