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規格
| 屬性 | 價值 |
| Shipping Restrictions | Mouser does not presently sell this product in your region. |
| Mounting Type | SMD/SMT |
| Package / Case | SOIC-16 |
| Minimum Operating Temperature | - 40 C |
| Maximum Operating Temperature | + 125 C |
| Brand | Nexperia |
| Product Type | Monostable Multivibrator |
| Subcategory | Logic ICs |
| Logic Type | Monostable Multivibrator |
| Logic Family | AHC |
| Elements per Chip | 2 Element |
| Propagation Delay Time | 24.1 ns, 14 ns |
| Supply Voltage - Min | 4.5 V |
| Supply Voltage - Max | 5.5 V |
| Low Level Output Current | 8 mA |
| High Level Output Current | - 8 mA |
| Height | 1.45 mm |
| Length | 10 mm |
| Operating Supply Voltage | 5 V |
| Factory Pack Quantity | 50 |
| Width | 4 mm |
| Part # Aliases | 74AHC123AD,112 |
| Unit Weight | 0.008818 oz |
概述
Description
The 74AHC123AD is a dual retriggerable monostable multivibrator, part of the 74AHC family of high-speed CMOS logic devices. It is designed to generate a single output pulse in response to a trigger input, with the pulse width determined by external resistor and capacitor components. The device features two independent monostable circuits, allowing for versatile applications in timing and pulse generation.
Key features include a wide operating voltage range (2V to 5.5V) and fast response times, making it suitable for high-speed applications. The 74AHC123AD also supports asynchronous retriggering, meaning it can extend the output pulse duration if triggered again before the original pulse ends.
This IC is widely used in various digital circuits for applications such as pulse width modulation, timer circuits, and event counting, making it integral in both consumer electronics and industrial applications. Its robust design and compatibility with TTL levels enhance its utility in modern electronic systems.
Key features include a wide operating voltage range (2V to 5.5V) and fast response times, making it suitable for high-speed applications. The 74AHC123AD also supports asynchronous retriggering, meaning it can extend the output pulse duration if triggered again before the original pulse ends.
This IC is widely used in various digital circuits for applications such as pulse width modulation, timer circuits, and event counting, making it integral in both consumer electronics and industrial applications. Its robust design and compatibility with TTL levels enhance its utility in modern electronic systems.
Equivalent
The 74AHC123AD is a dual retriggerable monostable multivibrator. Equivalent products include:
1. 74HC123 (standard version)
2. 74HCT123 (with TTL-compatible inputs)
3. 74AC123 (faster version)
Ensure to check the specific voltage and temperature ranges for compatibility in your application.
1. 74HC123 (standard version)
2. 74HCT123 (with TTL-compatible inputs)
3. 74AC123 (faster version)
Ensure to check the specific voltage and temperature ranges for compatibility in your application.
Features
The 74AHC123AD is a dual retriggerable monostable multivibrator that features:
1. Dual Functionality: Contains two independent monostable circuits.
2. Retriggerable: Can be retriggered, allowing for extended pulse duration.
3. Wide Supply Voltage: Operates from 2V to 5.5V, making it suitable for various applications.
4. Fast Switching: Offers high-speed operation with a propagation delay of approximately 10 ns at 5V.
5. Low Power Consumption: Designed for low power usage, ideal for battery-operated devices.
6. TTL Compatibility: Compatible with TTL logic levels, ensuring easy integration with other digital components.
7. Temperature Range: Functions reliably over a temperature range of -40°C to +125°C.
8. Active High/Low Trigger: Input can be triggered by active high or low signals, providing design flexibility.
This IC is commonly used in timers, pulse width modulation, and digital signal processing applications.
1. Dual Functionality: Contains two independent monostable circuits.
2. Retriggerable: Can be retriggered, allowing for extended pulse duration.
3. Wide Supply Voltage: Operates from 2V to 5.5V, making it suitable for various applications.
4. Fast Switching: Offers high-speed operation with a propagation delay of approximately 10 ns at 5V.
5. Low Power Consumption: Designed for low power usage, ideal for battery-operated devices.
6. TTL Compatibility: Compatible with TTL logic levels, ensuring easy integration with other digital components.
7. Temperature Range: Functions reliably over a temperature range of -40°C to +125°C.
8. Active High/Low Trigger: Input can be triggered by active high or low signals, providing design flexibility.
This IC is commonly used in timers, pulse width modulation, and digital signal processing applications.
Pinout
The 74AHC123AD is a dual retriggerable monostable multivibrator IC with a pin count of 14. It features two independent monostable circuits, which can be triggered by either a rising or falling edge.
Pin Functions:
1. 1 (A) - Trigger Input A
2. 2 (B) - Trigger Input B
3. 3 (Q) - Output Q for A
4. 4 (Q̅) - Inverted Output Q for A
5. 5 (R) - Reset Input A
6. 6 (GND) - Ground
7. 7 (VCC) - Supply Voltage (typically 2V to 5.5V)
8. 8 (C) - Control Voltage A
9. 9 (C̅) - Control Voltage B
10. 10 (D) - Delay Time Adjust (external resistor/capacitor)
11. 11 (Q) - Output Q for B
12. 12 (Q̅) - Inverted Output Q for B
13. 13 (R) - Reset Input B
14. 14 (B) - Trigger Input B
This IC is widely used in timing applications to generate precise time delays.
Pin Functions:
1. 1 (A) - Trigger Input A
2. 2 (B) - Trigger Input B
3. 3 (Q) - Output Q for A
4. 4 (Q̅) - Inverted Output Q for A
5. 5 (R) - Reset Input A
6. 6 (GND) - Ground
7. 7 (VCC) - Supply Voltage (typically 2V to 5.5V)
8. 8 (C) - Control Voltage A
9. 9 (C̅) - Control Voltage B
10. 10 (D) - Delay Time Adjust (external resistor/capacitor)
11. 11 (Q) - Output Q for B
12. 12 (Q̅) - Inverted Output Q for B
13. 13 (R) - Reset Input B
14. 14 (B) - Trigger Input B
This IC is widely used in timing applications to generate precise time delays.
Manufacturer
The 74AHC123AD is manufactured by Texas Instruments (TI), a prominent American technology company. Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits, which are essential components in electronics. The company is known for its extensive range of products, including analog devices, embedded processors, and digital signal processors.
Founded in 1930, TI has evolved into a leader in the semiconductor industry, focusing on innovation and engineering excellence. It serves a wide array of markets, such as automotive, industrial, communications, consumer electronics, and more. TI's commitment to research and development has positioned it as a key player in the global electronics market, emphasizing high-performance and energy-efficient solutions. The 74AHC123AD is a dual retriggerable monostable multivibrator, commonly used in timing applications and pulse generation in digital circuits.
Founded in 1930, TI has evolved into a leader in the semiconductor industry, focusing on innovation and engineering excellence. It serves a wide array of markets, such as automotive, industrial, communications, consumer electronics, and more. TI's commitment to research and development has positioned it as a key player in the global electronics market, emphasizing high-performance and energy-efficient solutions. The 74AHC123AD is a dual retriggerable monostable multivibrator, commonly used in timing applications and pulse generation in digital circuits.
Application
The 74AHC123AD is a dual retriggerable monostable multivibrator. Its primary application areas include:
1. Pulse Width Modulation (PWM): Generates precise timing pulses for control purposes.
2. Timing Applications: Used in timers and delays for various electronic circuits.
3. Signal Conditioning: Cleans up noisy signals by converting them into clean square waves.
4. Frequency Division: Can be used in frequency divisors in digital circuits.
5. Debouncing: Eliminates noise in mechanical switches and buttons.
Its versatility in handling timing and pulse-related functions makes it suitable for a wide range of digital applications.
1. Pulse Width Modulation (PWM): Generates precise timing pulses for control purposes.
2. Timing Applications: Used in timers and delays for various electronic circuits.
3. Signal Conditioning: Cleans up noisy signals by converting them into clean square waves.
4. Frequency Division: Can be used in frequency divisors in digital circuits.
5. Debouncing: Eliminates noise in mechanical switches and buttons.
Its versatility in handling timing and pulse-related functions makes it suitable for a wide range of digital applications.
Package
The 74AHC123AD is available in a Dual In-Line Package (DIP) form factor, specifically a 14-pin package. This type of package is designed for easy insertion into circuit boards and provides reliable electrical performance.