SN74LS221N - Texas Instruments

Manufacturer Part Number

SN74LS221N

Manufacturer

Texas Instruments

Introduction

The SN74LS221N is a dual monostable multivibrator from Texas Instruments, designed for generating precise time delays and sequences.

Product Features and Performance

Dual monostable multivibrators

45 ns typical propagation delay

Schmitt-trigger inputs are absent

Outputs can source or sink 400µA high, 8mA low

Supply voltage operational range from 4.75V to 5.25V

Designed for 0°C to 70°C operating temperature

Through-hole mounting for secure PCB attachment

Product Advantages

Dual circuits offer flexibility for multiple timing configurations

Precise propagation delay enhances timing accuracy

High output drive and low side switching capability

Compatible with 5V systems, ideal for TTL environments

Key Technical Parameters

Logic Type: Monostable

Independent Circuits: 2

Propagation Delay: 45 ns

Current Output High, Low: 400µA, 8mA

Voltage Supply: 4.75 V ~ 5.25 V

Operating Temperature: 0°C ~ 70°C

Mounting Type: Through Hole

Package / Case: 16-DIP (0.300", 7.62mm)

Quality and Safety Features

Manufactured by Texas Instruments, ensuring high reliability and performance standards

Designed to operate within standard temperature ranges for industrial electronics

Compatibility

Suitable for integration into TTL logic systems

Through-hole mounting supports traditional PCB designs

Application Areas

Timing circuits

Pulse generation

Sequential timers for industrial controls

Digital signal processing

Product Lifecycle

Status: Active

The product is currently in active production with no immediate discontinuation plans

Replacement or upgrade options are available for future needs

Several Key Reasons to Choose This Product

High precision timing control for critical applications

Dual monostable configuration offers versatile timing solutions

Reliable performance within a wide range of supply voltages

High-quality manufacturing from Texas Instruments ensures dependability

Easy integration into existing TTL logic systems and traditional PCB layouts