MAXIM INTEGRATED / ANALOG DEVICES DS1501WZ+ Datasheet & Stock

The DS1501WZ+ from Maxim Integrated Products is a Y2K-compliant watchdog real-time clock in 28 pin SOIC package. The full-function, year 2000-compliant real-time clock/calendars (RTC) with an RTC alarm, watchdog timer, power-on reset, battery monitors, 256 bytes NV SRAM and a 32.768KHz output. User access to all registers within the DS1501 is accomplished with a byte-wide interface. The RTC registers contain century, year, month, date, day, hours, minutes and seconds data in 24-hour binary-coded decimal (BCD) format. Corrections for day of month and leap year are made automatically. Typical applications include remote systems, battery-backed systems, telecom switches, office equipment and consumer electronics.




Automatic leap year compensation valid up to the year 2100

Programmable watchdog timer and RTC alarm

Operation 3.3V, operating temperature range from 0°C to +70°C

Precision power-on reset

Auxiliary battery input

Day of week/date alarm register

Crystal select bit allow RTC to operate with 6pF or 12.6pF crystal

Battery voltage level indicator flags

Underwriters Laboratories (UL) recognized

Battery-Backed Systems; Consumer Electronics; Office Equipment; Remote Systems; Telecom Switches