DESCRIPTION

· The DS1629 is a 2-wire digital thermometer and real-time clock (RTC) integrated into an 8-pin SO package.

· It communicates via a 2-wire interface and operates over a wide power supply range (2.2V to 5.5V).

· It provides 9-bit temperature readings and includes a clock/calendar with leap year compensation up to 2100.

· No additional components are required for temperature measurement.

FEATURES

· Measures temperatures from -55°C to +125°C (-67°F to 257°F).

· Thermometer accuracy is ±2.0°C (typ) with 9-bit resolution (expandable).

· Includes a real-time clock with seconds, minutes, hours, date, month, day of the week, and year.

· User-definable thermostatic and time alarm settings with a dedicated open-drain alarm output.

· 32 bytes of SRAM for general data storage.

· 2-wire serial interface for data read/write operations.

APPLICATIONS

· Suitable for PCs/PDAs, cellular telephones, office equipment, data loggers, and thermally sensitive systems.