NE555 Status: ACTIVE

Single Precision Timer


      
         
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Datasheet

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 NA555 NE555SA555 SE555 TLC555 
Frequency(Max)(MHz) 0.5  0.5   2.1  
VCC(Min)(V)4.5  4.5  4.5  4.5  2  
VCC(Max)(V)16  16  16  18  15  
Pin/Package8PDIP, 8SOIC  8PDIP, 8SO, 8SOIC, 8TSSOP  8PDIP, 8SOIC  8PDIP, 8SOIC  14TSSOP, 8PDIP, 8SO, 8SOIC  
Operating Temp Range(Celsius)-40 to 105  0 to 70  -40 to 85  -55 to 125  -40 to 125,-40 to 85,0 to 70  
 SamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TLC555: Low Power Timer
  • SE555: Precision Timer
  • NA555: Precision Timers
  • LM2904: Dual Operational Amplifier
  • TPS5430: 5.5V to 36V, 3A, 500kHz Step Down SWIFT™ Converter
  • ADS1258: 24 Bit, Fast Channel Cycling Delta-Sigma ADC

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
NE555DACTIVE0 to 700.16 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
NE555DE4ACTIVE0 to 700.16 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
NE555DG4ACTIVE0 to 700.16 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
NE555DRACTIVE0 to 700.14 | 1kuSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
NE555DRE4ACTIVE0 to 700.14 | 1kuSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
NE555DRG4ACTIVE0 to 700.14 | 1kuSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
NE555PACTIVE0 to 700.16 | 1kuPDIP (P) | 8 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
NE555PE4ACTIVE0 to 700.16 | 1kuPDIP (P) | 8 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
NE555PSLEOBSOLETE0 to 70 SO (PS) | 8 View    Download CAD Format for this FootprintNot Available
NE555PSRACTIVE0 to 700.16 | 1kuSO (PS) | 8 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
NE555PSRE4ACTIVE0 to 700.16 | 1kuSO (PS) | 8 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
NE555PSRG4ACTIVE0 to 700.16 | 1kuSO (PS) | 8 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
NE555PWACTIVE0 to 700.18 | 1kuTSSOP (PW) | 8 View 150 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
NE555PWE4ACTIVE0 to 700.18 | 1kuTSSOP (PW) | 8 View 150 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
NE555PWG4ACTIVE0 to 700.18 | 1kuTSSOP (PW) | 8 View 150 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
NE555PWRACTIVE0 to 700.16 | 1kuTSSOP (PW) | 8 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
NE555PWRE4ACTIVE0 to 700.16 | 1kuTSSOP (PW) | 8 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
NE555PWRG4ACTIVE0 to 700.16 | 1kuTSSOP (PW) | 8 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
NE555YOBSOLETE0 to 70 0     Not Available

* 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 11:52 AM GMT, 26 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksNE555D
AmericasAvnet 23
Rochester Electronics >1k
AsiaFarnell Asia 251
EuropeArrow Northern Europe 50
WorldwideMouser Electronics >1k
TI Lead Time*: 20 WeeksNE555DE4
AmericasAvnet >1k
Rochester Electronics >1k
WorldwideMouser Electronics 928
TI Lead Time*: 20 WeeksNE555DG4
AmericasAvnet >1k
EuropeEBV Elektronik >1k
WorldwideMouser Electronics >1k
TI Lead Time*: 20 WeeksNE555DR
AmericasArrow >1k
Newark >1k
Rochester Electronics >1k
AsiaFarnell Asia >1k
WPI >1k
EuropeAvnet-SILICA >1k
Compel >1k
WorldwideMouser Electronics 139
TI Lead Time*: 20 WeeksNE555DRE4
None Reported
View Distributors
TI Lead Time*: 20 WeeksNE555DRG4
EuropeEBV Elektronik >1k
WorldwideMouser Electronics 611
TI Lead Time*: 20 WeeksNE555P
AmericasArrow >1k
Avnet >1k
Rochester Electronics >1k
AsiaFarnell Asia >1k
EuropeArrow Northern Europe >1k
Avnet-SILICA >1k
EBV Elektronik >1k
Farnell >1k
Spoerle 50
WorldwideMouser Electronics >1k
TI Lead Time*: 20 WeeksNE555PE4
WorldwideMouser Electronics 404
TI Lead Time*: 15 WeeksNE555PSR
AsiaWPI >1k
WorldwideDigiKey >1k
Mouser Electronics >1k
TI Lead Time*: 15 WeeksNE555PSRE4
WorldwideDigiKey  Available
TI Lead Time*: 15 WeeksNE555PSRG4
WorldwideDigiKey  Available
TI Lead Time*: 18 WeeksNE555PW
AmericasArrow 113
Rochester Electronics >1k
AsiaWPI 185
EuropeAvnet-SILICA >1k
TI Lead Time*: 18 WeeksNE555PWE4
None Reported
View Distributors
TI Lead Time*: 18 WeeksNE555PWG4
None Reported
View Distributors
TI Lead Time*: 20 WeeksNE555PWR
AmericasRochester Electronics >1k
TI Lead Time*: 20 WeeksNE555PWRE4
None Reported
View Distributors
TI Lead Time*: 20 WeeksNE555PWRG4
WorldwideMouser Electronics 369
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
NE555D RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
NE555DE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
NE555DG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
NE555DR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
NE555DRE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
NE555DRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
NE555P RoHS Compliant Pb-Free (RoHS) CU NIPDAU N/A for Pkg TypeViewView
NE555PE4 RoHS Compliant Pb-Free (RoHS) CU NIPDAU N/A for Pkg TypeViewView
NE555PSR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
NE555PSRE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
NE555PSRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
NE555PW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
NE555PWE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
NE555PWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
NE555PWR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
NE555PWRE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
NE555PWRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView

* 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 NE555 Help

Datasheet

Selection Guides

Part # Name Product Family Comments
SE555   Precision Timer   CLOCKS AND TIMERS - TIMERS(CT)   Extended temperature of -55 to 125  
NA555   Precision Timers   CLOCKS AND TIMERS - TIMERS(CT)   Extended temperature of -40 to 105  
SA555   Precision Timer   CLOCKS AND TIMERS - TIMERS(CT)   Extended temperature of -40 to 85  
TLC555   Low Power Timer   CLOCKS AND TIMERS - TIMERS(CT)   CMOS version of NE555  
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