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TLC552 Status: ACTIVE

Dual LinCMOS(TM) Timer


      
         
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 TLC552
Frequency(Max)(MHz)2.8  
VCC(Min)(V)1  
VCC(Max)(V)18  
Pin/Package14PDIP, 14SOIC  
 Samples
 Inventory

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Product Information

Features

  • Very Low Power Consumption . . . 2 mW Typ at VDD = 5 V
  • Capable of Operation in Astable Mode
  • CMOS Output Capable of Swinging Rail to Rail
  • High Output-Current Capability
    Sink 100 mA Typ
    Source 10 mA Typ
  • Output Fully Compatible With CMOS, TTL, and MOS
  • Low Supply Current Reduces Spikes During Output Transitions
  • High-Impedance Inputs . . . 1012 Typ
  • Single-Supply Operation From 1 V to 18 V
  • Functionally Interchangeable With the NE556; Has Same Pinout

Description

The TLC552 is a dual monolithic timing circuit fabricated using TI LinCMOSTM process, which provides full compatibility with CMOS, TTL, and MOS logic and operation at frequencies up to 2 MHz. Accurate time delays and oscillations are possible with smaller, less-expensive timing capacitors than the NE555 because of the high input impedance. Power consumption is low across the full range of power supply voltages.

Like the NE556, the TLC552 has a trigger level approximately one-third of the supply voltage and a threshold level approximately two-thirds of the supply voltage. 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 input can override all other inputs and can be used to initiate a new timing cycle. If the reset input is low, the flip-flop is reset and the output is low. Whenever the output is low, a low-impedance path is provided between the discharge terminal and ground.

While the CMOS output is capable of sinking over 100 mA and sourcing over 10 mA, the TLC552 exhibits greatly reduced supply-current spikes during output transitions. This minimizes the need for the large decoupling capacitors required by the NE556.

These devices have internal electrostatic discharge (ESD) protection circuits that will prevent catastrophic failures at voltages up to 2000 V as tested under MIL-STD-883C, Method 3105.2. However, care should be exercised in handling these devices as exposure to ESD may result in a degradation of the device parametric performance.

All unused inputs should be tied to an appropriate logic level to prevent false triggering.

The TLC552C is characterized for operation from 0°C to 70°C.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusPrice | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
TLC552CDACTIVE1.00 | 1kuSOIC (D) | 14 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
TLC552CDG4ACTIVE1.00 | 1kuSOIC (D) | 14 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
TLC552CDRACTIVE0.90 | 1kuSOIC (D) | 14 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TLC552CDRG4ACTIVE0.90 | 1kuSOIC (D) | 14 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TLC552CNACTIVE0.90 | 1kuPDIP (N) | 14 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
TLC552CNE4ACTIVE0.90 | 1kuPDIP (N) | 14 View 25 | TUBE 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 10:30 AM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 4 WeeksTLC552CD
AmericasAvnet 475
Newark 999
Rochester Electronics >1k
AsiaFarnell Asia 999
WPI 62
WorldwideDigiKey 911
Mouser Electronics 873
TI Lead Time*: 4 WeeksTLC552CDG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTLC552CDR
AmericasAvnet >1k
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTLC552CDRG4
WorldwideDigiKey  Available
TI Lead Time*: 4 WeeksTLC552CN
AmericasNewark 408
Rochester Electronics >1k
AsiaWPI 73
WorldwideDigiKey 147
TI Lead Time*: 4 WeeksTLC552CNE4
WorldwideDigiKey  Available
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
TLC552CD RoHS Compliant Green (RoHS & no Sb/Br) Call TI Level-1-260C-UNLIMViewView
TLC552CDG4 RoHS Compliant Green (RoHS & no Sb/Br) Call TI Level-1-260C-UNLIMViewView
TLC552CDR RoHS Compliant Green (RoHS & no Sb/Br) Call TI Level-1-260C-UNLIMViewView
TLC552CDRG4 RoHS Compliant Green (RoHS & no Sb/Br) Call TI Level-1-260C-UNLIMViewView
TLC552CN RoHS Compliant Pb-Free (RoHS) CU NIPDAU N/A for Pkg TypeViewView
TLC552CNE4 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.

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Technical Documents

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