32.768kHz Temperature-Compensated Crystal Oscillator

Industry's Most Accurate Temperature-Compensated Crystal Oscillator (TCXO)

Please check latest availability status for a specific part variant.


The DS32kHz is a temperature-compensated crystal oscillator (TCXO) with an output frequency of 32.768kHz. This device addresses applications requiring better timekeeping accuracy, and can be used to drive the X1 input of most Dallas Semiconductor real-time clocks (RTCs), chipsets, and other ICs containing RTCs. This device is available in commercial (DS32kHz) and industrial (DS32kHz-N) temperature versions.
DS32kHz: Block Diagram DS32kHz: Block Diagram Enlarge+

Key Features

  • Accurate to ±4 Minutes/Year (-40°C to +85°C)
  • Accurate to ±1 Minute/Year (0°C to +40°C)
  • Battery Backup for Continuous Timekeeping
  • VBAT Operating Voltage: 2.7V to 5.5V with VCC Grounded
  • VCC Operating Voltage: 4.5V to 5.5V
  • Operating Temperature Range:
    • 0°C to +70°C (Commercial)
    • -40°C to +85°C (Industrial)
  • No Calibration Required
  • Low-Power Consumption
  • Surface Mountable Using BGA Package
  • UL Recognized


  • Automatic Power Meters
  • GPS Receivers
  • Network Timing and Synchronization in Servers, Routers, Hubs, and Switches
  • Telematics

See parametric specs for Oscillator Modules (4)

Part NumberFreq.Osc. TypeFreq. Output TypeFrequency Stability
Frequency Stability
Frequency Stability
Frequency Stability
0 to +40°C-40 to 0°C/ +40 to +85°Cvs. VCCvs. AgingSee Notes
DS32KHZ 32.768kHzTCXOCMOS Push-Pull27.52.5 (typ)1 (First Year)4.5 to 5.5
SOIC (W)/16
$3.47 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
Product Reliability Reports: DS32KHZ.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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