DS1251YP-100Y

The DS1251YP-100Y is designed as 4096K NV SRAM with phantom clock which is a fully static nonvolatile RAM (organized as 512K words by 8bits) with a builtin real time clock. It has a selfcontained lithium energy source and control circuitry which constantly monitors VCC for an outoftolerance condition.

DS1251YP-100Y has ten features. (1)Real time clock keeps track of hundredths of seconds, minutes, hours, days, date of the month, months, and years. (2)512Kx8 NV SRAM directly replaces volatile static RAM or EEPROM. (3)Embedded lithium energy cell maintains calendar operation and retains RAM data. (4)Watch function is transparent to RAM operation. (5)Month and year determine the number of days in each month; valid up to 2100. (6)Over 10 years of data retention in the absence of power. (7)Full 10% operating range. (8)Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time. (8)DIP module only which means sandard 32pin JEDEC pinout and upward comparable with the DS1248. (9)PowerCap module board only which means surface mountable package for direct connection to PowerCap containing battery and crystal and replaceable battery (PowerCap) and pin for pin compatible with other densities of DS124XP phantom clocks. Those are all the main features.

Some absolute maximum ratings of DS1251YP-100Y have been concluded into several points as follow. (1)Its voltage on any pin relative to ground would be from -0.3V to +7.0V. (2)Its operating temperature range would be from -40°C to 85°C. (3)Its storage temperature range would be from -45°C to +85°C. (4)Its soldering temperature would be 260°C for 10 seconds. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some DC characteristics of DS1251YP-100Y are concluded as follow. (1)Its input leakage current would be min -1.0uA and max +1.0uA. (2)Its I/O leakage current would be min -1.0uA and max +1.0uA. (3)Its output current at 2.4V would be min 2.0mA. (4)Its output current at 0.4V would be min 2.0mA. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!