Mfr Part #:

SN74LS221N

The Texas Instruments SN74LS221N is a monostable multivibrator featuring a 45 ns propagation delay and operating within a 4.75V to 5.25V range. It is designed for through-hole mounting.

✓ Total Stock: 203,713 pcs

$ Price Range: $0.50

SN74LS221N Available from 5 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Romaks Technologies ✓ Non-Authorised Inventory information	200,000 pcs On Request	200000 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Components Technology Group, Inc. ✓ Non-Authorised Inventory information	3,500 pcs On Request	3500 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Partservice ✓ Non-Authorised Inventory information	179 pcs On Request	179 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Braun Electronic Components ✓ Non-Authorised Inventory information	25 pcs On Request	25 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Chanetech ✓ Non-Authorised Inventory information	9 pcs On Request	9 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

SN74LS221N Description

Short technical summary and product information.

The Texas Instruments SN74LS221N is a monostable multivibrator IC designed for various logic applications. It offers a propagation delay of 45 ns, making it suitable for timing-critical circuits. The device operates within a voltage range of 4.75V to 5.25V and consumes minimal current.

This component features two independent circuits and is housed in a 16-pin DIP package, designed for through-hole mounting. The operating temperature range is from 0°C to 70°C, ensuring reliable performance in standard environmental conditions. Its logic type is monostable, providing a single stable state.

The SN74LS221N is part of the logic family and is categorized under multivibrators. It is suitable for applications requiring precise timing pulses and signal generation. The through-hole package facilitates easy integration into breadboard prototypes and through-hole PCB designs.

SN74LS221N Quick Information

Product Type: Monostable Multivibrator

Series: SN74LS

Canonical Name: Texas Instruments SN74LS221N Monostable Multivibrator

Subcategory: Multivibrators

SN74LS221N Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

SN74LS221N Estimated Pricing

Qty	Low	High
1+	$0.50	$0.50

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

SN74LS221N Features

Monostable multivibrator logic type.
45 ns typical propagation delay.
Operates from 4.75V to 5.25V.
Through-hole mounting in 16-DIP package.
Suitable for 0°C to 70°C operation.

SN74LS221N Applications

Used for precise pulse generation.
Suitable for timing control circuits.
Ideal for logic signal conditioning.
Applications requiring stable timing.

SN74LS221N FAQs

7 frequently asked questions generated from this part’s specifications.

What is the operating voltage range of the SN74LS221N?

4.75 V to 5.25 V

What package is the SN74LS221N available in?

16-pin DIP (0.300", 7.62mm) and 16-PDIP.

What is the operating temperature range?

0°C to 70°C

What is the logic type of the SN74LS221N?

Monostable multivibrator

What is the propagation delay of the SN74LS221N?

45 ns

How many independent circuits does the SN74LS221N contain?

Does the SN74LS221N have Schmitt trigger inputs?

Category	Multivibrators
Manufacturer Name	Texas Instruments
Current	400µA, 8mA
Independent Circuits	2
Lead Spacing	2.54 mm
Logic Type	Monostable
Mounting Type	Through Hole
Operating Temperature	0°C ~ 70°C
Propagation Delay	45 ns
Schmitt Trigger Input	No
Supplier Device Package	16-PDIP
Supplier Package	16-PDIP
Voltage	4.75 V ~ 5.25 V