TI Home > Semiconductors > Clocks and Timers > Timers >

SE555 Status: ACTIVE

Precision Timer


      
         
Alert me about changes<br/>to this product


Datasheet

Download - PDF Icon

 NA555 NE555 SA555 SE555
Frequency(Max)(MHz) 0.5  0.5   
VCC(Min)(V)4.5  4.5  4.5  4.5  
VCC(Max)(V)16  16  16  18  
Pin/Package8PDIP, 8SOIC  8PDIP, 8SO, 8SOIC, 8TSSOP  8PDIP, 8SOIC  8PDIP, 8SOIC  
Operating Temp Range(Celsius)-40 to 105  0 to 70  -40 to 85  -55 to 125  
 SamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventory

Other qualified versions of SE555

Version Part Number Definition
Military SE555M QML certified for Military and Defense Applications

Customers Who Evaluated This Product Also Evaluated

  • NE555: Single Precision Timer
  • TLC555: Low Power Timer
  • SE555M: Precision Timer
  • TMP141: Digital Out Temperature Sensor

More Related Products

Product Information

Features

  • Timing From Microseconds to Hours
  • Astable or Monostable Operation
  • Adjustable Duty Cycle
  • TTL–Compatible Output Can Sink or Source up to 200 mA

DESCRIPTION/ORDERING INFORMATION

These devices are precision timing circuits capable of producing accurate time delays or oscillation. In the time-delay or monostable mode of operation, the timed interval is controlled by a single external resistor and capacitor network. In the astable mode of operation, the frequency and duty cycle can be controlled independently with two external resistors and a single external capacitor.

The threshold and trigger levels normally are two-thirds and one-third, respectively, of VCC. These levels can be altered by use of the control-voltage terminal. When the trigger input falls below the trigger level, the flip-flop is set, and the output goes high. If the trigger input is above the trigger level and the threshold input is above the threshold level, the flip-flop is reset and the output is low. The reset (RESET) input can override all other inputs and can be used to initiate a new timing cycle. When RESET goes low, the flip-flop is reset, and the output goes low. When the output is low, a low-impedance path is provided between discharge (DISCH) and ground.

The output circuit is capable of sinking or sourcing current up to 200 mA. Operation is specified for supplies of 5 V to 15 V. With a 5-V supply, output levels are compatible with TTL inputs.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
SE555DACTIVE-55 to 1250.40 | 1kuSOIC (D) | 8 View 75 Download CAD Format for this Symbol Download CAD Format for this Footprint
SE555DG4ACTIVE-55 to 1250.40 | 1kuSOIC (D) | 8 View 75 Download CAD Format for this Symbol Download CAD Format for this Footprint
SE555DRACTIVE-55 to 1250.43 | 1kuSOIC (D) | 8 View 2500 Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
SE555DRG4ACTIVE-55 to 1250.43 | 1kuSOIC (D) | 8 View 2500 Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
SE555NOBSOLETE-55 to 125 (N) | 8     Not Available
SE555PACTIVE-55 to 1250.40 | 1kuPDIP (P) | 8 View 50 Download CAD Format for this Symbol Download CAD Format for this Footprint

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 11:23 AM GMT, 06 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 8 WeeksSE555D
AmericasArrow >1k
Newark 784
Rochester Electronics >1k
AsiaFarnell Asia 64
WPI 63
EuropeFarnell 64
WorldwideDigiKey 345
Mouser Electronics 985
TI Lead Time*: 6 WeeksSE555DG4
EuropeArrow Northern Europe 188
Avnet-SILICA 225
EBV Elektronik 55
WorldwideDigiKey 141
TI Lead Time*: 15 WeeksSE555DR
AmericasAvnet >1k
Rochester Electronics >1k
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksSE555DRG4
WorldwideDigiKey  Available
TI Lead Time*: 15 WeeksSE555P
AmericasArrow >1k
Avnet 905
Newark >1k
Rochester Electronics >1k
AsiaFarnell Asia 179
EuropeEBV Elektronik 5
Farnell 179
WorldwideDigiKey >1k
View all Distributors  

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
SE555D  TBD CU NIPDAU Level-1-220C-UNLIMViewView
SE555DG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
SE555DR  TBD CU NIPDAU Level-1-220C-UNLIMViewView
SE555DRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
SE555P RoHS Compliant Pb-Free (RoHS) CU NIPDAU N/A for Pkg TypeViewView

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for SE555 Help

Datasheet

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
NE555 Single Precision Timer CLOCKS AND TIMERS-TIMERS(CT) TI customers also evaluated this product.
TLC555 Low Power Timer CLOCKS AND TIMERS-TIMERS(CT) TI customers also evaluated this product.
SE555M Precision Timer CLOCKS AND TIMERS-TIMERS(CT) TI customers also evaluated this product.
TLC551 LinCMOS(TM) Timer CLOCKS AND TIMERS-TIMERS(CT) TI customers also evaluated this product.
NA555 Precision Timers CLOCKS AND TIMERS-TIMERS(CT) TI customers also evaluated this product.
SA555 Precision Timer CLOCKS AND TIMERS-TIMERS(CT) TI customers also evaluated this product.
TMP141 Digital Out Temperature Sensor TEMPERATURE SENSORS AND CONTROL ICs-TEMPERATURE SENSOR TI customers also evaluated this product.

Support and Community

Customer Tags Help

No Tags are Available for this Part Number

Other Support



Click Here