3V EconOscillator/Divider

Industry's Most Accurate All-Silicon Oscillator

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The DS1077L is a dual-output, programmable, fixed-frequency oscillator requiring no external components for operation. The DS1077L can be used as a processor-controlled frequency synthesizer or as a stand-alone oscillator. The two synchronous output operating frequencies are user-adjustable in submultiples of the master frequency through the use of two on-chip programmable prescalers and dividers. The specific output frequencies chosen are stored in nonvolatile (EEPROM) memory. The DS1077L defaults to these values upon power-up.

The DS1077L features a 2-wire serial interface that allows in-circuit on-the-fly programming of the programmable prescalers (P0 & P1) and divider (N) with the desired values being stored in nonvolatile (EEPROM) memory. Design changes can be accommodated in-circuit, on-the-fly by simply programming different values into the device (or reprogramming previously programmed devices). Alternatively, for fixed-frequency applications previously programmed devices can be used and no connection to the serial interface is required. Preprogrammed devices can be ordered in customer-requested frequencies.

The DS1077L is available in SO or µSOP packages, allowing the generation of a clock signal easily, economically, and using minimal board area. Chip-scale packaging is also available on request.
DS1077L: Block Diagram DS1077L: Block Diagram Enlarge+

Key Features

  • Processor-controlled or stand-alone solid-state oscillator
  • Frequency changes on the fly
  • Dual, low-jitter, synchronous fixed-frequency outputs
  • 2-wire serial interface
  • Frequency outputs 4.87kHz to 66.666MHz ±1.25% variation over temperature and voltage
  • ±0.5% initial tolerance
  • Nonvolatile frequency settings
  • Single 2.7V to 3.6V supply
  • No external components
  • Power-down mode
  • Synchronous output gating


  • Cable Modems
  • Cell Phones
  • Computer Peripherals
  • Copiers
  • PCs
  • Printers

See parametric specs for Silicon Oscillators (17)

Part NumberfOUT
User Prog. fOUTSpread SpectrumVCC
Reset OutOper. Temp.
maxminmaxSee Notes
DS1077L 66.64.87±1.25 (0 to 70°C)I2CNo2.7 to 3.6No-40 to +85
SOIC (N)/8
$1.50 @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: DS1077L.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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Related Resources

Type ID Title
Evaluation Board4969DS1070_EVKIT Oscillator Evaluation Kit