M74HC221RM13TR

Product Overview

• Category: Integrated Circuit
• Use: Digital Logic Gates
• Characteristics: High-Speed, Dual Monostable Multivibrator
• Package: SOIC-16
• Essence: Reliable and efficient digital logic gate for timing applications
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2V to 6V
• Logic Family: HC
• Number of Pins: 16
• Operating Temperature Range: -40°C to +125°C
• Propagation Delay: 9 ns (typical)
• Output Current: ±25 mA
• Input Capacitance: 3.5 pF (typical)

Detailed Pin Configuration

1. CLR (Clear)
2. A (Input A)
3. B (Input B)
4. GND (Ground)
5. Q (Output)
6. VCC (Positive Supply Voltage)
7. RCext (External Resistor/Capacitor)
8. RBext (External Resistor/Capacitor)
9. NC (No Connection)
10. NC (No Connection)
11. NC (No Connection)
12. NC (No Connection)
13. NC (No Connection)
14. NC (No Connection)
15. NC (No Connection)
16. NC (No Connection)

Functional Features

• Dual monostable multivibrator with independent inputs
• Wide operating voltage range allows compatibility with various systems
• High-speed operation enables precise timing control
• Schmitt-trigger inputs provide hysteresis for noise immunity
• Output can drive standard TTL or CMOS logic levels

Advantages

• Compact and space-saving package
• Low power consumption
• Wide temperature range for versatile applications
• Reliable and robust design
• Easy integration into existing digital circuits

Disadvantages

• Limited number of available pins for external connections
• Not suitable for high-frequency applications
• Requires additional external components for certain functionalities

Working Principles

The M74HC221RM13TR is a dual monostable multivibrator integrated circuit. It consists of two independent monostable circuits that generate a pulse output upon receiving a trigger signal. The duration of the output pulse is determined by the values of external resistors and capacitors connected to the RCext and RBext pins.

When a trigger signal is applied to either input A or B, the corresponding monostable circuit generates an output pulse with a duration determined by the external components. The output pulse width can be adjusted by varying the values of the external resistors and capacitors.

Detailed Application Field Plans

The M74HC221RM13TR is commonly used in various timing applications where precise control over pulse durations is required. Some specific application fields include:

1. Timing circuits in microcontrollers and microprocessors
2. Pulse-width modulation (PWM) control systems
3. Frequency division and counting circuits
4. Delay generation in communication systems
5. Precision timing in industrial automation

Detailed and Complete Alternative Models

1. CD74HC221E - High-Speed CMOS Logic Dual Monostable Multivibrator
2. SN74HC221N - Dual Monostable Multivibrator with Schmitt-Trigger Inputs
3. MC74HC221AN - Dual Non-Retriggerable Monostable Multivibrator

These alternative models offer similar functionality and can be used as replacements for the M74HC221RM13TR in various applications.

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