DS1672
DS1672 is I2C 32-Bit Binary Counter RTC manufactured by Maxim Integrated.
DESCRIPTION
The DS1672 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, month, and year by using a software algorithm. A precision, temperature-pensated reference and parator 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 a period of time to allow the power supply and processor to stabilize.
TYPICAL OPERATING CIRCUIT
FEATURES
- 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
- Underwriters Laboratories (UL) Recognized
- -40°C to +85°C...
