TC74HC123APNEWF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Timing Control
• Characteristics: High-Speed, Monostable Multivibrator
• Package: DIP-16 (Dual In-line Package with 16 pins)
• Essence: The TC74HC123APNEWF is a monostable multivibrator IC used for timing control applications.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage: 2V to 6V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 25 ns (typical)
• Output Current: ±5.2 mA
• Input Capacitance: 3 pF (typical)

Detailed Pin Configuration

The TC74HC123APNEWF has a total of 16 pins arranged as follows:

1. Clear Input (CLR)
2. A Input (A)
3. B Input (B)
4. Ground (GND)
5. Bypass Capacitor Connection (VCC)
6. Output (Q)
7. Trigger Input (TR)
8. Reset Input (RD)
9. Threshold Input (TH)
10. Control Voltage Input (CV)
11. Discharge Output (DO)
12. Discharge Output (DO)
13. Discharge Output (DO)
14. Discharge Output (DO)
15. VCC
16. Not Connected (NC)

Functional Features

• Monostable Operation: The TC74HC123APNEWF can be configured as a monostable multivibrator, generating a single pulse of a specific duration upon triggering.
• Adjustable Pulse Width: The pulse width can be adjusted using the external resistor and capacitor connected to the timing control pins.
• Schmitt Trigger Inputs: The inputs (A, B, TR, RD, TH) are equipped with Schmitt trigger circuits, ensuring reliable operation even in the presence of noise.
• Wide Operating Voltage Range: The IC can operate within a voltage range of 2V to 6V, making it suitable for various applications.

Advantages and Disadvantages

Advantages: - High-speed operation - Adjustable pulse width - Schmitt trigger inputs for noise immunity - Wide operating voltage range

Disadvantages: - Limited number of discharge outputs - Requires external resistor and capacitor for timing control

Working Principles

The TC74HC123APNEWF operates as a monostable multivibrator by utilizing an external resistor and capacitor connected to the timing control pins. Upon triggering, the IC generates a single pulse with a duration determined by the values of the external components. The Schmitt trigger inputs ensure reliable operation by providing noise immunity.

Detailed Application Field Plans

The TC74HC123APNEWF finds applications in various fields where precise timing control is required. Some of the potential application areas include:

1. Timing Control Circuits: The IC can be used in timing control circuits for applications such as pulse generation, time delay, and synchronization.
2. Communication Systems: It can be employed in communication systems for signal timing and synchronization purposes.
3. Industrial Automation: The IC can be utilized in industrial automation systems for controlling timing sequences in machinery and equipment.
4. Automotive Electronics: It finds applications in automotive electronics for timing-related functions like ignition control and sensor synchronization.

Detailed and Complete Alternative Models

1. CD74HC123E: This IC from Texas Instruments offers similar functionality and features as the TC74HC123APNEWF.
2. MC74HC123AN: Manufactured by ON Semiconductor, this IC is another alternative with comparable specifications and pin configuration.
3. SN74HC123N: This IC from Texas Instruments is a drop-in replacement for the TC74HC123APNEWF, offering similar performance characteristics.

Note: The above list is not exhaustive, and there may be other alternative models available from different manufacturers.

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