
SN74LS221D
Dual monostable multivibrators with Schmitt-trigger inputs
Availability: In Stock
Package Type: SOIC-16
CAD Models: Symbol, Footprint, 3D Model
What is SnapEDA?
SnapEDA is a free library of symbols & footprints for the SN74LS221D by Texas Instruments and for millions of electronic components.
Compatible with Eagle, Altium, Cadence OrCad & Allegro, KiCad, & more.
Discover parts from Texas Instruments, Microchip, TE Connectivity, Vishay & more.
- Symbol and Footprint
- 3D Model
Symbol

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Footprint

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3D Model
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Get this 3D Model for $0.99 $29
courtesy of Digikey.
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Verification | Issues | Specs |
Specifications for the SN74LS221D
Part Name | SN74LS221D |
Manufacturer | Texas Instruments |
MOQ | 1 |
Formats Available for Symbols and Footprints |
Altium, Eagle, KiCAD, Cadence OrCad/Allegro, PADS, DxDesigner, PCB123, Pulsonix, Proteus |
Datasheet | See Datasheet PDF |
Inventory for the SN74LS221D by Texas Instruments from major distributors.
Supplier | Quantity | Price | Purchase | |
---|---|---|---|---|
★ Featured
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627
|
|
Visit Site | |
★ Featured
![]() |
1,066
|
|
Visit Site | |
★ Featured
![]() |
2,319
|
|
Visit Site | |
Arrow China |
693
|
|
Visit Site | |
Avnet America |
368
|
600 x $0.43
|
Visit Site | |
Chip One Stop |
693
|
|
Visit Site | |
Holdelec |
120
|
|
Visit Site | |
Newark Electronics |
368
|
250 x $1.28
|
Visit Site | |
Verical |
310
|
|
Visit Site | |
Win Source |
7,500
|
|
Visit Site |
Recent Questions
Added 2 days, 8 hours ago.
Is the 2450AT18B100E part correct?
the Symbol shows 1 pin but the footprint is 2 pin. this will flag net connection errors in Altium... (more)
Added 4 days, 19 hours ago.
Why does this show the optional pinout?
On the last page of the datasheet, "No optional pinning for 5 Vin models"
Added 5 days, 14 hours ago.
No issues have been reported for the SN74LS221D
If you experienced any issues with the symbol or footprint, please report it.