Watch chip
Discontinued Products are limited to existing inventory.
The CF5761 series are analog clock ICs with alarm functions that derive their timing from a standard 32.768 kHz oscillator element. Two kinds of alarm output are available and can be selected using a control pin. The series lineup comprises devices with various alarm patterns and motor outputs for a wide range of clock specifications. They support convenient functions, such as input chattering elimination circuit and power-on clear functions. They are fabricated using Molybdenum-gate CMOS process, realizing low power consumption.
Key Features
  • 32.768 kHz fundamental frequency oscillator
  • Feedback resistor and oscillator capacitor CG and CD built-in
  • Supports various alarms: piezo-alarm, electromagnetic speaker
  • Snooze function
  • Switchable alarm function using SEL pin
  • Alarm auto-stop function
  • Input chattering elimination circuit (SEL, AI, SN)
  • Test function
  • 1.2 to 3.6V operating supply voltage
  • Molybdenum-gate CMOS process
  • Chip form
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