MM74HC123AMX

Product Overview

• Category: Integrated Circuit
• Use: Multivibrator
• Characteristics: High-speed, Monostable
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Monostable Multivibrator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2V to 6V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 15 ns
• Output Current: ±25 mA
• Input Capacitance: 3 pF
• Output Capacitance: 8 pF
• Power Dissipation: 500 mW

Detailed Pin Configuration

The MM74HC123AMX has a total of 16 pins. The pin configuration is as follows:

1. Clear (CLR)
2. A Input (A)
3. B Input (B)
4. Ground (GND)
5. Output (Q)
6. Complementary Output (Q̅)
7. Control Voltage (CV)
8. Threshold Voltage (THRES)
9. Trigger Voltage (TRIG)
10. Reset (RESET)
11. Discharge (DISCH)
12. VCC (Positive Power Supply)
13. Control Voltage (CV)
14. Threshold Voltage (THRES)
15. Trigger Voltage (TRIG)
16. Reset (RESET)

Functional Features

The MM74HC123AMX is a high-speed monostable multivibrator integrated circuit. It is designed to generate a single pulse of a fixed duration in response to an external trigger signal. The key features of this product include:

• Wide supply voltage range for flexibility in various applications.
• Fast propagation delay time for quick response.
• High output current capability for driving external loads.
• Low input and output capacitance for efficient operation.
• Power dissipation within acceptable limits.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with different systems. - Fast propagation delay time ensures quick pulse generation. - High output current capability enables driving of external loads. - Low input and output capacitance minimizes power consumption.

Disadvantages: - Limited functionality as it is specifically designed for monostable multivibrator applications. - Not suitable for applications requiring continuous oscillation.

Working Principles

The MM74HC123AMX operates based on the principles of a monostable multivibrator. When a trigger signal is applied to the TRIG pin, the circuit generates a single pulse of fixed duration determined by the values of external resistors and capacitors connected to the CV, THRES, and DISCH pins. The pulse width can be adjusted by varying these external components.

Detailed Application Field Plans

The MM74HC123AMX finds applications in various fields where a precise timing pulse is required. Some of the common application areas include:

1. Timing circuits in digital systems.
2. Pulse generation for control signals in microcontrollers.
3. Delay circuits in communication systems.
4. Precision timing in scientific instruments.
5. Triggering events in industrial automation.

Detailed and Complete Alternative Models

1. CD74HC123E - High-Speed CMOS Logic Dual Retriggerable Monostable Multivibrator
2. SN74HC123N - Dual Retriggerable Monostable Multivibrator
3. MC74HC123AN - Dual Monostable Multivibrator

These alternative models offer similar functionality and can be used as substitutes for the MM74HC123AMX depending on specific requirements.

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