CD74HC123M96E4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Multivibrator and Monostable Multivibrator
• Characteristics: High-speed CMOS logic, dual retriggerable monostable multivibrator
• Package: 16-pin SOIC (Small Outline Integrated Circuit)
• Essence: Reliable timing control for digital circuits
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 2V to VCC
• Low-Level Input Voltage: GND to 0.8V
• High-Level Output Current: -4mA
• Low-Level Output Current: 4mA
• Propagation Delay Time: 14ns
• Trigger Pulse Width Range: 23ns to 1000s
• Trigger Pulse Width Accuracy: ±2%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. CLR (Clear) - Active LOW input for resetting the internal flip-flop
2. A (Trigger) - Active HIGH input for triggering the multivibrator
3. B (Retrigger) - Active HIGH input for retriggering the multivibrator
4. Q (Output) - Output of the multivibrator
5. GND (Ground) - Ground reference for the IC
6. Q (Complementary Output) - Complementary output of the multivibrator
7. RCext (External Resistor/Capacitor) - External resistor/capacitor connection for timing control
8. VCC (Supply Voltage) - Positive supply voltage for the IC
9. NC (No Connection) - No electrical connection
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. NC (No Connection) - No electrical connection

Functional Features

• Dual retriggerable monostable multivibrator with independent trigger and retrigger inputs
• Provides precise timing control for digital circuits
• High-speed CMOS logic allows for fast operation
• Wide supply voltage range enables compatibility with various systems
• Low power consumption for energy-efficient applications

Advantages and Disadvantages

Advantages

• Reliable and accurate timing control
• Dual functionality for versatile applications
• High-speed operation for time-critical tasks
• Wide supply voltage range for compatibility
• Low power consumption for energy efficiency

Disadvantages

• Limited number of available pins for additional functionalities
• Requires external resistor/capacitor for precise timing control

Working Principles

The CD74HC123M96E4 is a dual retriggerable monostable multivibrator IC. It consists of two independent sections, each capable of generating a stable output pulse upon receiving a trigger signal. The duration of the output pulse is determined by an external resistor and capacitor connected to the RCext pin.

When the CLR input is brought LOW, it resets the internal flip-flop, disabling the multivibrator. Upon receiving a HIGH trigger signal at the A input, the multivibrator is triggered, and the Q output goes HIGH for a specific duration determined by the RCext components. If a retrigger signal is received at the B input during this period, the output pulse is extended, restarting the timing cycle.

The CD74HC123M96E4 provides reliable timing control for digital circuits, ensuring precise synchronization and sequencing of operations.

Detailed Application Field Plans

The CD74HC123M96E4 finds applications in various fields, including:

1. Timing and synchronization circuits in microcontrollers and microprocessors
2. Pulse generation for digital communication systems
3. Delay circuits for signal processing and data transmission
4. Precision timing control in industrial automation and robotics
5. Frequency division and clock generation in electronic devices
6. Sequential logic circuitry in computer architectures
7. Timing control in automotive electronics and instrumentation
8. Timer circuits for consumer electronics and appliances

Detailed and Complete Alternative Models

1. CD74HC123M96 - Similar specifications and functionality, different package (14-pin TSSOP)
2. CD74HCT123M96E4 - Similar functionality with TTL compatibility, different supply voltage range (4.5V to 5.5V)
3. CD4098B - Dual monostable multivibrator IC with similar functionality, different logic family (CMOS)
4. NE555 - Single-timer IC with similar functionality, widely used in various applications
5. MC14538B - Dual retriggerable mon