Extremely Accurate SPI Bus RTC with Integrated Crystal and SRAM
Completely Integrated, Accurate Timing Solution Provides Better than ±2.0 Minutes per Year Accuracy Over the Industrial Temperature Range and Requires No User Calibration
DS3231 Extremely Accurate I²C-Integrated RTC/TCXO/Crystal DS3232 Extremely Accurate I²C RTC with Integrated Crystal and SRAM DS4077 50MHz to 122.88MHz VCXO DS32kHz 32.768kHz Temperature-Compensated Crystal Oscillator
