MAXIM INTEGRATED / ANALOG DEVICES DS1501YZ+ Datasheet & Stock

The DS1501YZ+ is a Y2K compliant watchdog real time clock (RTC) in 28 pin WSOIC package. It is a low power clock/date device with a programmable day of week/date alarm and it has 5V operation. This full function, year 2000 compliant real time clock/calendar contains RTC alarm, watchdog timer, precision power-on reset, battery monitors, 256byte battery backed NV SRAM and 32.768KHz output. User access to all registers within the DS1501 is accomplished with bytewide interface. The RTC registers includes BCD coded century, year, month, date, day, hours, minutes and seconds with automatic leap year compensation valid up to the year 2100 (corrections for day of month and leap year are made automatically). Power control circuitry supports system power-on from date/day/time alarm or key closure/modem detect signal. The DS1501 is used in remote systems, battery backed systems, telecom switches and office equipments.




Supply voltage range from 4.5V to 5.5V

Operating temperature range from 0°C to 70°C

UL recognized

Programmable watchdog timer and RTC alarm

Auxiliary battery input and battery voltage level indicator flags

Day of week/date alarm register

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

Battery voltage level indicator flags

Active supply current of 15mA

Read cycle time is 70ns and write cycle time is 70ns





Applications


Clock & Timing,

Consumer Electronics





Warnings
Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.