SN74LS221DR The Texas Instruments SN74LS221DR is a dual monostable multivibrator IC. It features Schmitt-trigger inputs and operates within a voltage range of 4.75V to 5.25V.
Mfr Part #:

SN74LS221DR

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments SN74LS221DR is a dual monostable multivibrator IC. It features Schmitt-trigger inputs and operates within a voltage range of 4.75V to 5.25V.
✓ Total Stock: 47,700 pcs
$ Price Range: $0.50

SN74LS221DR Available from 2 distributors

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
45,200 pcs
45200 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
2,500 pcs
2500 pcs On Request 1 On Request On Request On Request On Request On Request

SN74LS221DR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Features
Halogen Free
Independent Circuits
Industrial Grade
Input Type
Logic Type
Medical Grade
Military Grade
Mounting Type
Number of Channels
Operating Temperature
Output Type
Propagation Delay
SVHC Present
Schmitt Trigger Input
Supplier Device Package
Supply Current
Tape & Reel
Voltage

SN74LS221DR Description

Short technical summary and product information.

The SN74LS221DR from Texas Instruments is a dual monostable multivibrator integrated circuit. This component belongs to the LS technology family and is designed for applications requiring precise pulse generation.

 

Key electrical characteristics include a typical supply current of 27000µA, a maximum output low current (IOL) of 8mA, and a maximum output high current (IOH) of -0.4mA. The device operates within a supply voltage range of 4.75V to 5.25V, with a standard propagation delay of 45 ns. It features Schmitt-trigger input circuitry for enhanced noise immunity.

 

This multivibrator IC is housed in a 16-SOIC package, suitable for surface mounting. The operating temperature range is from 0°C to 70°C, making it appropriate for various commercial and industrial environments. Each of the two independent circuits can be triggered to generate a stable output pulse, with the pulse width adjustable via external timing components.

 

The SN74LS221DR is designed for applications where controlled pulse generation is critical, such as timing circuits, pulse shaping, and delay generation.

SN74LS221DR Quick Information

Product Type: Dual Monostable Multivibrator
Series: LS
Canonical Name: SN74LS221DR Dual Monostable Multivibrator
Subcategory: Monostable

SN74LS221DR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: No

SN74LS221DR Estimated Pricing

Qty Low High
1+ $0.50 $0.50

Estimated market price range - modelled values for guidance only, not live distributor offers.

SN74LS221DR Features

  • Dual monostable multivibrator IC.
  • Schmitt-trigger input for noise immunity.
  • Operates from 4.75V to 5.25V.
  • 45 ns propagation delay.
  • Surface mountable 16-SOIC package.

SN74LS221DR Applications

  • Pulse generation circuits.
  • Timing and delay applications.
  • Signal conditioning.
  • Monostable multivibrator functions.

SN74LS221DR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the SN74LS221DR?

The operating voltage range is 4.75V to 5.25V.

What package does the SN74LS221DR come in?

It comes in a 16-SOIC surface-mount package.

What is the operating temperature range?

The operating temperature range is 0°C to 70°C.

How many channels does the SN74LS221DR have?

It has 2 independent channels.

What is the logic type of the SN74LS221DR?

It is a monostable multivibrator.

Does the SN74LS221DR have Schmitt-Trigger inputs?

Yes, it has Schmitt-Trigger inputs.

What is the typical propagation delay?

The typical propagation delay is 45ns.

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