Maxim DS1251WP-120IND

Phantom 计时芯片闰年，NVSRAM512KB

Overview

The DS1251WP-120IND 4096K NV SRAM with Phantom Clock is a fully static nonvolatile RAM (organized as 512K words by 8 bits) with a built-in real-time clock. The DS1251Y has a self-contained lithium energy source and control circuitry which constantly monitors VCC for an out-of-tolerance condition. When such a condition occurs, the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent garbled data in both the memory and real-time clock. 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 less 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.

Features

Tube Package
34-PowerCap™ Module package
34 terminations
34 pin count
Be maintained at 3.3V for high efficiency.

Surface Mount Mounting Type

Applications

There are a lot of Maxim Integrated
DS1251WP-120IND Real Time Clocks applications.

• Copy machines
• Mobile equipment
• Battery powered devices
• Printers and copiers
• Electronic metering
• Digital cameras
• White goods
• Elapsed time counter
• Network powered devices
• Battery backed up systems