SN74121NG4

Product Overview

Category

SN74121NG4 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronics for various applications such as pulse and timing control.

Characteristics

• High-speed operation
• Wide operating voltage range
• Low power consumption
• Compact size

Package

SN74121NG4 is available in a dual in-line package (DIP) with 14 pins.

Essence

The essence of SN74121NG4 lies in its ability to generate precise pulses and timing signals, making it an essential component in many digital systems.

Packaging/Quantity

SN74121NG4 is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of ICs. The exact quantity may vary depending on the manufacturer.

Specifications

• Supply Voltage: 2V - 6V
• Operating Temperature Range: -40°C to +85°C
• Output Current: 8mA
• Propagation Delay Time: 15ns
• Trigger Voltage: 0.7V

Detailed Pin Configuration

1. CLR (Clear)
2. A (Input A)
3. B (Input B)
4. C (Input C)
5. D (Input D)
6. GND (Ground)
7. Q (Output Q)
8. VCC (Supply Voltage)
9. RC (Resistor-Capacitor)
10. RE (Resistor-Enable)
11. TR (Trigger)
12. TP (Threshold)
13. CT (Control Voltage)
14. NC (No Connection)

Functional Features

• Monostable multivibrator operation
• Adjustable pulse width
• Schmitt-trigger inputs for noise immunity
• Clear input for resetting the circuit
• Enable input for controlling the output state

Advantages and Disadvantages

Advantages

• High-speed operation allows for precise timing control.
• Wide operating voltage range enables compatibility with various systems.
• Low power consumption reduces energy requirements.
• Compact size facilitates integration into space-constrained designs.

Disadvantages

• Limited output current may restrict certain applications.
• Propagation delay time may affect real-time operations in critical systems.

Working Principles

SN74121NG4 operates as a monostable multivibrator, generating a single pulse of adjustable width in response to a trigger input. The pulse width is determined by external resistors and capacitors connected to the RC pin. The circuit can be reset using the clear input or controlled using the enable input.

Detailed Application Field Plans

SN74121NG4 finds applications in various fields, including: 1. Timing circuits in digital clocks and watches. 2. Pulse generation for communication systems. 3. Control signals in industrial automation. 4. Delay circuits in automotive electronics. 5. Triggering events in scientific experiments.

Detailed and Complete Alternative Models

Some alternative models to SN74121NG4 include: - CD74HC123E - MC14528BCL - HEF4538BP - 74LS123N

These alternatives offer similar functionality and can be used as replacements based on specific requirements.

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