The MM74HC14MX is a hex inverting Schmitt trigger chip. Here is its English introduction:

General Introduction

The MM74HC14MX belongs to the 74HC logic family and is designed with advanced silicon-gate CMOS technology. It combines the low power consumption and high noise immunity characteristics of standard CMOS and has the ability to drive 10 LS-TTL loads.

Features

• Logic Function: It consists of six inverting Schmitt trigger circuits. The Schmitt trigger input can convert slowly changing input signals into clear and jitter-free output signals, which is useful for waveform shaping and signal stabilization5.
• Power Supply Range: It has a wide power supply voltage range of 2V to 6V, which can adapt to different power supply environments.
• Low Power Consumption: The quiescent current is low, with a maximum of 20 μA in the 74HC series, helping to reduce overall power consumption.
• Low Input Current: The maximum input current is 1 μA, which means it has little impact on the driving source and is beneficial for signal transmission and processing.
• High Fanout Capability: It can drive 10 LS-TTL loads, having strong driving ability and being able to meet the needs of different circuit connection requirements.
• Typical Hysteresis Voltage: At VCC = 4.5V, the typical hysteresis voltage is 0.9V, which can effectively improve the anti-interference ability of the circuit.
• Fast Propagation Speed: The typical propagation delay is 13 ns, which can realize high-speed signal processing and transmission and improve the operating efficiency of the circuit.
• ESD Protection: Internal diodes are clamped to VCC and ground to protect all inputs from ESD damage, enhancing the reliability and stability of the device.

Package and Pinout

• Package Type: It is usually packaged in 14-lead small outline integrated circuit (SOIC) format, which is suitable for surface mount technology and can save PCB space3.
• Pinout: It has 14 pins, including 6 input pins, 6 output pins, power supply pins and ground pins.

Applications

• Waveform and Pulse Shaping: It can convert signals with irregular waveforms into standard square waves, which is widely used in clock signal generation, data transmission and other circuits.
• Multivibrator Circuits: It can be used to build astable and monostable multivibrator circuits to generate specific frequency pulses or time delays.
• Logic Signal Conversion: In digital logic circuits, it can convert signals between different logic levels and play a role in buffering and inverting signals.