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SN74LS221DB

Texas Instruments

Reset input、Adjustable pulse width、Dual edge triggering SSOP-16-208mil Monostable Multivibrators ROHS

Extended
DatasheetJLCPCBLCSCti/SN74LS221DB
Category
Monostable Multivibrators
Package
SSOP-16-208mil
Pins
16

Overview

The SN74LS221DB is a monostable Multivibrator made by Texas Instruments in a SSOP-16-208mil package with 16 pins. Reset input、Adjustable pulse width、Dual edge triggering SSOP-16-208mil Monostable Multivibrators ROHS.

PCBKit's library has its KiCad symbol (74xx:74LS221, from KiCad's library) and its footprint (Package_SO:SSOP-16_5.3x6.2mm_P0.65mm, from KiCad's library), ready for a KiCad board. 10 are in stock at JLCPCB (part C2652511).

Symbol

A1B2CLR3Q4Q13Cext14RCext15
74xx:74LS221From KiCad's library

Footprint

12345678910111213141516
Package_SO:SSOP-16_5.3x6.2mm_P0.65mmFrom KiCad's library

Parameters

1
Function
Adjustable pulse width

Order codes

1

Pinout

16
The pins of the SN74LS221DB
PinNameType
1AInput
2BInput
3CLRInput
4QOutput
5QOutput
6CextInput
7RCextInput
8GNDPower in
9AInput
10BInput
11CLRInput
12QOutput
13QOutput
14CextInput
15RCextInput
16VCCPower in

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Questions

Is there a KiCad symbol and footprint for the SN74LS221DB?

Yes. The symbol is 74xx:74LS221 and the footprint Package_SO:SSOP-16_5.3x6.2mm_P0.65mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the SN74LS221DB?

SSOP-16-208mil, with 16 pins. Its footprint is drawn on this page.

Where is the SN74LS221DB datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the SN74LS221DB?

JLCPCB lists it as part C2652511, with 10 in stock; the sellers' links on this page open their listings.

What can replace the SN74LS221DB?

Parts like it in the library: the 74HC123DB by Nexperia, the 74HC4538DB by Nexperia, the 74HCT123DB by Nexperia and the 74HCT4538DB by Nexperia. Check their datasheets: a part that fits the footprint may still differ in its ratings.

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