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Seiko Instruments Inc. (SII) is based on more than seven decades of dependable precision timepiece design, development and manufacturing. In today´s dynamic business environment, we are faced with the challenge of responding quickly and flexibly to the diverse and constantly changing needs of individuals, corporations, and society.

To meet this challenge, SII will continue to develop advanced micro mechanical, and low power consumption leveraging our precision instrument manufacturing expertise.

  • Power Management ICs
  • Voltage Regulators
  • (LDO Regulators)
  • Voltage Detectors
  • (Reset ICs)
  • Switching Regulators
  • (DC/DC Converters)
  • Charge Pump ICs
  • Composite ICs
  • Lithium-ion Battery Protection ICs
  • Memory
  • General use Serial EEPROM (SPI, I2C, Microwire)
  • Automotive use Serial EEPROM (SPI, I2C, Microwire)
  • Sensors
  • Temperature Sensor ICs
  • Magnetism Sensor ICs
  • (Hall ICs/Hall Switch)
  • Photo Detect ICs
  • Real-Time Clock etc.
  • Real-Time Clock ICs
  • Programable Port Controller
  • Mini Logic (Gate Logic IC)
  • Analog ICs
  • Operational Amplifiers
  • Comparators