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OPERATIONAL CHARACTERISTICS OF A CMOS MICROPROCESSOR SYSTEM AT CRYOGENIC TEMPERATURES.

Author(s) : DEEN M. J., CHAN C. Y., FONG N.

Type of article: Article

Summary

THE VARIATION OF THE MAXIMUM INPUT CLOCK FREQUENCY VERSUS TEMPERATURE OF A CMOS MICROPROCESSOR WITH A < PIGGY-BACK > EPROM IS DESCRIBED. THE MAXIMUM INPUT FREQUENCY FOR RELIABLE OPERATION INCREASED FROM 19 TO 33 MEGAHERTZ AS THE TEMPERATURE WAS LOWERED FROM 300 TO 77 K, AND THERE WAS A CORRESPONDING INCREASE IN THE POWER DISSIPATED FROM 18 TO 25 MILLIWATTS USING A SUPPLY OF 5 V. THE MEASUREMENTS WERE REPEATABLE EVEN AFTER THERMAL CYCLING MORE THAN 10 TIMES AND SHOWED NO HYSTERESIS ON COOLING DOWN TO 77 K OR WARMING UP TO 300 K.

Details

  • Original title: OPERATIONAL CHARACTERISTICS OF A CMOS MICROPROCESSOR SYSTEM AT CRYOGENIC TEMPERATURES.
  • Record ID : 1989-0475
  • Languages: English
  • Source: Cryogenics - vol. 28 - n. 5
  • Publication date: 1988

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