DS1254W|DS1254Y是Maxim美信半导体公司的一款美信芯片产品，DS1254W|DS1254Y是2M x 8 NV SRAM，带有隐含时钟，本站介绍了DS1254W|DS1254Y的封装应用图解、特点和优点、功能等，并给出了与DS1254W|DS1254Y相关的Maxim元器件型号供参考。
DS1254W|DS1254Y - 2M x 8 NV SRAM，带有隐含时钟 - 美信芯片 - Maxim美信半导体高性能芯片品质 - 美信半导体
The DS1254 is a fully nonvolatile static RAM (NV SRAM) (organized as 2M words by 8 bits) with built-in real-time clock. It has a self-contained lithium energy source and control circuitry that constantly monitors VCC for an out-of-tolerance condition. When such a condition occurs, the DS1254 makes use of an attached DS3800 battery cap to maintain clock information and preserve stored data while protecting that data by disallowing all memory accesses. Additionally, the DS1254 has dedicated circuitry for monitoring the status of an attached DS3800 battery cap.
The phantom clock provides timekeeping information including hundredths of seconds, seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including correction for leap years. The phantom clock operates in either 24-hour or 12-hour format with an AM/PM indicator.
Because the DS1254 has a total of 168 balls and only 35 active signals, balls are wired together into groups, thus providing redundant connections for every signal.
