74AHC123AD

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74AHC123AD

  • Manufacturer
  • Mfr. Part #74AHC123AD
  • Package
  • Datasheet
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Specifications

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Mounting Style 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:Factory Pack Quantity 50
Width 4 mm
Part # Aliases 74AHC123AD,112
Unit Weight 0.008818 oz

Overview

Description

The 74AHC123AD is a dual retriggerable monostable multivibrator integrated circuit (IC) designed for use in digital applications. It belongs to the 74AHC series, which features high-speed CMOS technology, enabling operation at low power consumption and high noise immunity.
This IC has two independent monostable timers, each capable of generating output pulses with adjustable widths. The output pulse duration is determined by external resistor-capacitor (RC) timing components connected to its pins. The 74AHC123AD can be retriggered, allowing for extended timing intervals when new input signals are received before the current pulse ends.
Key features include a wide operating voltage range (2V to 5.5V), compatibility with TTL logic levels, and the ability to operate at high frequencies. These characteristics make the 74AHC123AD suitable for various applications, including pulse generation, timing circuits, and signal conditioning in digital systems. Its versatility and reliability make it a popular choice in both consumer electronics and industrial applications.

Features

The 74AHC123AD is a dual retriggerable monostable multivibrator designed for high-speed applications. Key features include:
1. Dual Configuration: Contains two independent monostable multivibrators, allowing simultaneous operation.
2. Retriggerable Operation: Can be retriggered by input pulses, extending the output pulse duration.
3. High-Speed Performance: Typically operates at a propagation delay of less than 20 ns at Vcc = 5V, suitable for fast digital circuits.
4. Wide Voltage Range: Operates with a supply voltage range of 2V to 5.5V, making it versatile for various applications.
5. Low Power Consumption: Consumes minimal power, ideal for battery-operated devices.
6. TTL Compatibility: Compatible with TTL logic levels, facilitating easy integration into existing systems.
7. Edge-Triggered: The output pulse width is controlled by external timing components, providing flexibility in timing applications.
These features make the 74AHC123AD suitable for timing, pulse generation, and signal conditioning applications in digital electronics.

Package

The 74AHC123AD is typically packaged in a Dual In-Line Package (DIP) format, specifically a 14-pin DIP. It may also be available in other package types such as TSSOP or SOIC, depending on the manufacturer. Always check the specific datasheet for the exact package details.

Pinout

The 74AHC123AD is a dual retriggerable monostable multivibrator. It features a total of 14 pins.
Pin Functions:
1. GND (Pin 1): Ground connection.
2. A (Pin 2): Active low trigger input for the first monostable.
3. B (Pin 3): Active low trigger input for the second monostable.
4. Q (Pin 4): Output for the first monostable.
5. \(\overline{Q}\) (Pin 5): Inverted output for the first monostable.
6. C (Pin 6): Control input for the first monostable.
7. R (Pin 7): Reset input for the first monostable.
8. GND (Pin 8): Ground connection.
9. Q (Pin 9): Output for the second monostable.
10. \(\overline{Q}\) (Pin 10): Inverted output for the second monostable.
11. C (Pin 11): Control input for the second monostable.
12. R (Pin 12): Reset input for the second monostable.
13. VCC (Pin 13): Supply voltage.
14. NC (Pin 14): No connection.
This device is widely used in pulse generation and timing applications.

Manufacturer

The manufacturer of the 74AHC123AD is Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits. Founded in 1930 and headquartered in Dallas, Texas, TI is known for its innovation in analog and embedded processing, serving a wide variety of industries, including automotive, industrial, and consumer electronics. The 74AHC123AD is a dual retriggerable monostable multivibrator, a type of digital logic device used in various electronic applications to generate precise timing intervals. TI is a major player in the semiconductor industry, providing products that enable high-performance, efficiency, and reliability in electronic systems.

Application

The 74AHC123AD is a dual retriggerable monostable multivibrator IC used in various applications, including pulse width modulation, timing circuits, frequency dividers, and signal conditioning. It is suitable for generating precise time delays, debouncing mechanical switches, and creating clock pulses in digital systems. Its high-speed operation and low power consumption make it useful in consumer electronics, automotive systems, and industrial automation.

Equivalent

The 74AHC123AD is a dual retriggerable monostable multivibrator. Equivalent products include:
- 74HCT123 (for TTL-compatible logic levels)
- 74LS123 (low power Schottky version)
- 74ACT123 (for advanced CMOS technology)
- MC14538 (similar function in a different package)
Always check datasheets for specific characteristics and compatibility.

Shipping

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