The M74LS132P is a Quad 2-Input NAND Schmitt Trigger manufactured by Mitsubishi. This device contains four independent 2-input NAND gates, each with Schmitt-trigger inputs. Schmitt triggers provide hysteresis, improving noise immunity and allowing the device to be used in applications with slowly changing or noisy input signals.

Applications

• Wave shaping
• Pulse squaring
• Noise suppression
• Switch debouncing
• Line receivers

Features

• Quad 2-input NAND gates
• Schmitt trigger inputs
• Hysteresis: Typically 0.8V
• Low-power Schottky (LS) technology
• TTL compatible inputs and outputs
• Wide operating voltage range: 4.75V to 5.25V

Benefits

• Provides improved noise immunity compared to standard NAND gates
• Allows for reliable operation with slowly changing input signals
• Simplifies circuit design for wave shaping and pulse squaring applications
• Reduces the need for external components for noise suppression

Additional Details

The M74LS132P typically comes in a 14-pin DIP (Dual In-line Package). Each of the four NAND gates functions independently. The Schmitt trigger inputs have a built-in hysteresis, meaning the input voltage threshold for switching the output HIGH is different from the threshold for switching it LOW. This hysteresis prevents oscillation or multiple triggering when the input signal is noisy or slowly changing. The LS technology offers a good balance between speed and power consumption. The TTL compatibility ensures easy interfacing with other TTL logic devices. Because of its noise immunity, this device is often used in industrial control systems, communication equipment, and other applications where noise is a concern.