Datasheet Texas Instruments SN74LS221

ManufacturerTexas Instruments
SeriesSN74LS221
Datasheet Texas Instruments SN74LS221

Dual monostable multivibrators with Schmitt-trigger inputs

Datasheets

SN54221, SN54LS221, SN74221, SN74LS221 datasheet
PDF, 933 Kb, Revision: B, File published: Nov 9, 2004
Extract from the document

Prices

Status

SN74LS221DSN74LS221DBRSN74LS221DG4SN74LS221DRSN74LS221DRE4SN74LS221NSN74LS221N3SN74LS221NE4SN74LS221NSR
Lifecycle StatusActive (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Obsolete (Manufacturer has discontinued the production of the device)Active (Recommended for new designs)Active (Recommended for new designs)
Manufacture's Sample AvailabilityNoNoNoNoNoNoNoNoNo

Packaging

SN74LS221DSN74LS221DBRSN74LS221DG4SN74LS221DRSN74LS221DRE4SN74LS221NSN74LS221N3SN74LS221NE4SN74LS221NSR
N123456789
Pin161616161616161616
Package TypeDDBDDDNNNNS
Industry STD TermSOICSSOPSOICSOICSOICPDIPPDIPPDIPSOP
JEDEC CodeR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDIP-TR-PDIP-TR-PDIP-TR-PDSO-G
Package QTY402000402500250025252000
CarrierTUBELARGE T&RTUBELARGE T&RLARGE T&RTUBETUBELARGE T&R
Device MarkingLS221LS221LS221LS221LS221SN74LS221NSN74LS221N74LS221
Width (mm)3.915.33.913.913.916.356.356.355.3
Length (mm)9.96.29.99.99.919.319.319.310.3
Thickness (mm)1.581.951.581.581.583.93.93.91.95
Pitch (mm)1.27.651.271.271.272.542.542.541.27
Max Height (mm)1.7521.751.751.755.085.085.082
Mechanical DataDownloadDownloadDownloadDownloadDownloadDownloadDownloadDownloadDownload

Parametrics

Parameters / ModelsSN74LS221D
SN74LS221D
SN74LS221DBR
SN74LS221DBR
SN74LS221DG4
SN74LS221DG4
SN74LS221DR
SN74LS221DR
SN74LS221DRE4
SN74LS221DRE4
SN74LS221N
SN74LS221N
SN74LS221N3
SN74LS221N3
SN74LS221NE4
SN74LS221NE4
SN74LS221NSR
SN74LS221NSR
Approx. Price (US$)0.40 | 1ku
Bits22222222
Bits(#)2
F @ Nom Voltage(Max), Mhz3535353535353535
F @ Nom Voltage(Max)(Mhz)35
ICC @ Nom Voltage(Max), mA2727272727272727
ICC @ Nom Voltage(Max)(mA)27
Input TypeTTL
Operating Temperature Range, C0 to 700 to 700 to 700 to 700 to 700 to 700 to 700 to 70
Operating Temperature Range(C)0 to 70
Output Drive (IOL/IOH)(Max), mA8/-0.48/-0.48/-0.48/-0.48/-0.48/-0.48/-0.48/-0.4
Output Drive (IOL/IOH)(Max)(mA)8/-0.4
Output TypeTTL
Package GroupSOICSSOPSOICSOICSOICPDIPPDIPPDIPSO
Package Size: mm2:W x L, PKG16SOIC: 59 mm2: 6 x 9.9(SOIC)16SSOP: 48 mm2: 7.8 x 6.2(SSOP)16SOIC: 59 mm2: 6 x 9.9(SOIC)16SOIC: 59 mm2: 6 x 9.9(SOIC)16SOIC: 59 mm2: 6 x 9.9(SOIC)See datasheet (PDIP)See datasheet (PDIP)16SO: 80 mm2: 7.8 x 10.2(SO)
Package Size: mm2:W x L (PKG)See datasheet (PDIP)
RatingCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalog
Schmitt TriggerNoNoNoNoNoNoNoNoNo
Technology FamilyLSLSLSLSLSLSLSLSLS
VCC(Max), V5.255.255.255.255.255.255.255.25
VCC(Max)(V)5.25
VCC(Min), V4.754.754.754.754.754.754.754.75
VCC(Min)(V)4.75
Voltage(Nom), V55555555
Voltage(Nom)(V)5
tpd @ Nom Voltage(Max), ns8080808080808080
tpd @ Nom Voltage(Max)(ns)80

Eco Plan

SN74LS221DSN74LS221DBRSN74LS221DG4SN74LS221DRSN74LS221DRE4SN74LS221NSN74LS221N3SN74LS221NE4SN74LS221NSR
RoHSCompliantCompliantCompliantCompliantCompliantCompliantNot CompliantCompliantCompliant
Pb FreeYesYesNo

Application Notes

  • Designing with the SN74LVC1G123 Monostable Multivibrator
    PDF, 158 Kb, File published: Jul 14, 2015
  • Designing with the SN54/74LS123 (Rev. A)
    PDF, 118 Kb, Revision: A, File published: Mar 1, 1997
    The Texas Instruments (TI) SN54/74LS123 dual retriggerable monostable multivibrator is a one-shot device capable of verylong output pulses and up to 100% duty cycle. The ?LS123 also features dc triggering from gated low-level active A andhigh-level active B inputs and provides a clear input that terminates the output pulse of any predetermined time independentof timing components R ext and

Model Line

Manufacturer's Classification

  • Semiconductors> Logic> Specialty Logic> Monostable Multivibrator