A tuning fork oscillator IC for 32.768 kHz output, operating over a wide supply range of 1.2 to 5.5 volts with typical no load current consumption of 1µA! The 5091 features a frequency adjustment programmable via a 3-wire interface and on-board EEPROM. Operating temperature range is -40°C to 85°C
Key Features
Tuning Fork oscillation at 32.768 kHz
Low current consumption 1µA typical at 3.3 Volts, no load
CMOS input and output
Tuning Fork stability (typically +10-180ppm)
frequency adjustment using onboard EEPROM and 3-wire serial interface
Operating supply voltage range: 1.2V to 5.5V
Package: Wafer form, Chip form
-40 to +85°C operating temperature range
Typical Applications
Real time clock application with settable 32.768 kHz output
CF5091.pdf