CD74HCT221M96E4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic Gate
• Characteristics: High-Speed CMOS, Dual Monostable Multivibrator
• Package: SOIC-16
• Essence: The CD74HCT221M96E4 is a dual monostable multivibrator IC that can be used in various digital logic applications.
• Packaging/Quantity: Available in reels of 2500 pieces.

Specifications

• Supply Voltage: 2V to 6V
• Logic Family: HCT
• Number of Channels: 2
• Propagation Delay: 33 ns
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The CD74HCT221M96E4 has a total of 16 pins arranged as follows:

1. CLR1 - Clear Input for Channel 1
2. A1 - Trigger Input for Channel 1
3. B1 - Threshold Input for Channel 1
4. Q1 - Output for Channel 1
5. VCC - Positive Power Supply
6. GND - Ground
7. Q1 - Complementary Output for Channel 1
8. Q2 - Output for Channel 2
9. B2 - Threshold Input for Channel 2
10. A2 - Trigger Input for Channel 2
11. CLR2 - Clear Input for Channel 2
12. Q2 - Complementary Output for Channel 2
13. NC - No Connection
14. NC - No Connection
15. NC - No Connection
16. NC - No Connection

Functional Features

• Dual monostable multivibrator with independent control inputs for each channel.
• Each channel can be triggered and cleared independently.
• Monostable pulse duration can be adjusted using external resistors and capacitors.
• High-speed operation suitable for time-critical applications.
• Compatible with other HCT logic family devices.

Advantages

• Independent control inputs allow flexible timing configurations.
• Wide operating voltage range enables compatibility with various systems.
• High-speed operation ensures accurate timing in time-sensitive applications.
• Compact SOIC-16 package offers space-saving integration.

Disadvantages

• Limited number of channels compared to some other multivibrator ICs.
• Requires external resistors and capacitors for precise timing adjustment.

Working Principles

The CD74HCT221M96E4 operates as a dual monostable multivibrator. Each channel can be triggered by applying a positive pulse to the respective trigger input (A1 or A2). The output (Q1 or Q2) will then go high for a duration determined by the external resistor and capacitor connected to the threshold (B1 or B2) and ground (GND) pins. The clear input (CLR1 or CLR2) can be used to reset the output before the end of the monostable period.

Detailed Application Field Plans

The CD74HCT221M96E4 is commonly used in various digital logic applications, including:

1. Timing circuits
2. Pulse generation
3. Frequency division
4. Delay circuits
5. Control systems

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the CD74HCT221M96E4 are:

1. SN74LS221N - Dual Monostable Multivibrator IC
2. MC14538B - Dual Precision Monostable Multivibrator IC
3. CD4098BE - Dual Precision Monostable Multivibrator IC
4. 74HC123D - Dual Retriggerable Monostable Multivibrator IC

These alternative models offer similar functionality and can be used as replacements depending on specific requirements.

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