SN74AHCT123ANG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Multivibrator
• Characteristics: High-speed, low-power, monostable multivibrator
• Package: 16-pin DIP (Dual In-line Package)
• Essence: Monostable multivibrator with retriggerable/resettable capability
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2 V to 5.5 V
• Input Voltage Range: 0 V to VCC
• Output Voltage Range: 0 V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 10 ns (typical)
• Trigger Pulse Width: 20 ns (minimum)
• Reset Pulse Width: 20 ns (minimum)

Detailed Pin Configuration

1. CLR (Clear) - Active LOW input for resetting the multivibrator
2. A (Trigger) - Active HIGH input for triggering the multivibrator
3. B (Retrigger) - Active HIGH input for retriggering the multivibrator
4. RC (Resistor-Capacitor) - External resistor-capacitor timing components
5. Q (Output) - Output of the multivibrator
6. GND (Ground) - Ground reference
7. Q' (Complementary Output) - Complementary output of the multivibrator
8. VCC (Supply Voltage) - Positive supply voltage

Functional Features

• Monostable operation: Generates a single pulse of fixed duration upon trigger input
• Retriggerable capability: Allows the multivibrator to be retriggered before the pulse ends
• Resettable capability: Resets the multivibrator to its initial state using the clear input
• Wide operating voltage range: Can operate from 2 V to 5.5 V supply voltage
• High-speed operation: Propagation delay time of only 10 ns (typical)
• Low-power consumption: Suitable for battery-powered applications

Advantages and Disadvantages

Advantages: - Flexible timing control with external resistor-capacitor components - Retriggerable and resettable capability enhances versatility - Wide operating voltage range allows compatibility with various systems - High-speed operation enables rapid pulse generation - Low-power consumption extends battery life in portable devices

Disadvantages: - Limited functionality as a monostable multivibrator, not suitable for other applications - Requires additional external components for timing control

Working Principles

The SN74AHCT123ANG4 is a monostable multivibrator that generates a single pulse of fixed duration upon receiving a trigger input. The pulse width is determined by the external resistor-capacitor (RC) timing components connected to pins RC. The multivibrator can be retriggered before the pulse ends by applying a retrigger input to pin B. The clear input (CLR) resets the multivibrator to its initial state.

Detailed Application Field Plans

1. Timing circuits: The SN74AHCT123ANG4 is commonly used in timing circuits where precise pulse generation is required, such as in clock synchronization or data sampling applications.
2. Communication systems: It finds application in communication systems for generating precise timing signals during data transmission or reception processes.
3. Industrial automation: The multivibrator can be utilized in industrial automation systems for controlling timing sequences in various processes.
4. Test and measurement equipment: It is suitable for test and measurement equipment that requires accurate pulse generation for signal analysis or calibration purposes.

Detailed and Complete Alternative Models

1. CD74HC123E - Monostable multivibrator with similar specifications and pin configuration, manufactured by Texas Instruments.
2. MC74HC123AN - Monostable multivibrator with comparable characteristics and pinout, produced by ON Semiconductor.
3. 74HCT123D - Monostable multivibrator with retriggerable capability, available in a surface-mount package, manufactured by Nexperia.

(Note: The above alternative models are provided for reference and may have slight variations in specifications or packaging.)

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