The DS1672 low-voltage serial timekeeping chip incorporates a 32-bit counter and power-monitoring functions. The 32-bit counter is designed to count seconds and can be used to derive time-of-day, week, month, and year by using a software algorithm. A precision, temperature-compensated reference and comparator circuit monitors the status of VCC. When an out-of-tolerance condition occurs, an internal power-fail signal is generated that forces the reset to the active state. When VCC returns to an in-tolerance condition, the reset signal is kept in the active state for 250ms to allow the power supply and processor to stabilize. * 32-Bit Counter * I²C Serial Interface * Automatic Power-Fail Detect and Switch Circuitry * Power-Fail Reset Output * Low-Voltage Oscillator Operation (1.3V min) * Trickle-Charge Capability https://elecena.pl/product/22301409/i-c-32-bit-binary-counter-rtc 2022-12-25 https://elecena.pl/product/22301409/i-c-32-bit-binary-counter-rtc 2024-11-04 https://elecena.pl/product/22301409/i-c-32-bit-binary-counter-rtc 2024-11-09 https://elecena.pl/product/22301409/i-c-32-bit-binary-counter-rtc 2025-01-19