SN74AHC123ADRE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Multivibrator
• Characteristics: High-speed, low-power, monostable multivibrator
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Flip-flop circuit with precision timing control
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Supply Voltage Range: 2 V to 5.5 V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 7 ns (typical)
• Output Current: ±8 mA
• Input Capacitance: 3.5 pF (typical)

Detailed Pin Configuration

The SN74AHC123ADRE4 has a total of 16 pins arranged as follows:

1. CLR (Clear) - Active LOW input for resetting the flip-flop
2. A - Input for triggering the flip-flop
3. B - Input for triggering the flip-flop
4. GND (Ground) - Ground reference
5. CEXT (External Capacitor) - Connects an external capacitor for timing control
6. RC (Resistor-Capacitor) - Connects an external resistor for timing control
7. Q (Output) - Output of the flip-flop
8. Q̅ (Complementary Output) - Complementary output of the flip-flop
9. VCC (Positive Power Supply) - Positive power supply voltage
10. NC (No Connection) - No electrical connection
11. NC (No Connection) - No electrical connection
12. NC (No Connection) - No electrical connection
13. NC (No Connection) - No electrical connection
14. NC (No Connection) - No electrical connection
15. NC (No Connection) - No electrical connection
16. VCC (Positive Power Supply) - Positive power supply voltage

Functional Features

• Monostable multivibrator with precision timing control
• Trigger inputs for controlling the output pulse width
• Clear input for resetting the flip-flop
• Complementary outputs for versatile applications
• High-speed operation with low power consumption
• Wide supply voltage range for flexibility

Advantages and Disadvantages

Advantages: - Precise timing control for accurate pulse generation - Versatile functionality with complementary outputs - High-speed operation allows for quick response times - Low power consumption for energy efficiency - Wide supply voltage range enables compatibility with various systems

Disadvantages: - Limited number of trigger inputs may restrict certain applications - External components required for timing control may increase complexity

Working Principles

The SN74AHC123ADRE4 is a monostable multivibrator, also known as a one-shot circuit. It operates based on the principles of flip-flops and timing control. When a trigger signal is applied to either input A or B, the flip-flop changes its state, generating an output pulse. The duration of the output pulse is determined by the external resistor-capacitor (RC) network connected to pins CEXT and RC. The clear input (CLR) can be used to reset the flip-flop and terminate the output pulse prematurely.

Detailed Application Field Plans

The SN74AHC123ADRE4 finds applications in various fields where precise timing control and pulse generation are required. Some potential application areas include:

1. Timing circuits in digital systems
2. Pulse-width modulation (PWM) control
3. Frequency division and counting circuits
4. Delay circuits for synchronization purposes
5. Precision timing in communication systems
6. Industrial automation and control systems
7. Test and measurement equipment

Detailed and Complete Alternative Models

1. CD74HC123E - High-speed CMOS dual retriggerable monostable multivibrator
2. MC74VHC123A - Dual retriggerable monostable multivibrator with reset
3. SN74LVC123A - Dual retriggerable monostable multivibrator with Schmitt-trigger inputs
4. 74HC123D - Dual retriggerable monostable multivibrator with reset

These alternative models offer similar functionality to the SN74AHC123ADRE4 and can be considered as substitutes based on specific requirements.

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