RTC DS 12C887
Reliable real-time clock for precise timekeeping in various applications
- Time Components: Hour, Minute, Second
- Date/Calendar Components: Year, Month, Day
- Power Source: Internal Lithium Battery
- Technology: CMOS for low power consumption
- Non Volatile RAM: 128 bytes
- Internal Registers Access: Requires external power source
- Activation Voltage: 4.25V
- Access Time: 200 msec
Top Features:
- Drop-in replacement for IBM AT computer clock/calendar
- Over 10 years of operation without power
- Counts various time and date components
- Selectable between 12- or 24-hour clock
RTC DS 12C887 is a widely used real-time clock chip that provides precise time and date information for applications like x86 IBM PC. It features time components such as hour, minute, and second, along with date/calendar components like year, month, and day. The chip utilizes an internal lithium battery to ensure that time and date information is retained even when the power is off. Operating on CMOS technology, it keeps power consumption low.
The DS12C887 has a total of 128 bytes of non-volatile RAM, with 14 bytes dedicated to storing clock/calendar and control registers. The remaining 114 bytes are available for general-purpose data storage. The internal registers are accessible only when the RTC is powered by an external power source. The chip becomes active when a voltage greater than 4.25V is applied, and the internal registers can be accessed after 200 msec.
It offers various features such as being a drop-in replacement for the IBM AT computer clock/calendar, compatibility with MC146818B and DS1287, and being totally non-volatile for over 10 years of operation without power. The RTC DS 12C887 is a reliable choice for applications requiring accurate timekeeping.
* Images are for illustration only; actual product may vary.