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产品信息
DS1305EN+T&R
Serial Alarm Real-Time Clock
实时时钟 Serial Alarm RTC 3-Wire
DESCRIPTION DS1305EN+T&R
The DS1305EN+T&R DS1305 serial alarm real-time clock provides a full binary coded decimal (BCD) clock calendar that is accessed by a simple serial interface. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. In addition, 96 bytes of NV RAM are provided for data storage. The DS1305 will maintain the time and date, provided the oscillator is enabled, as long as at least one supply is at a valid level.
BENEFITS AND FEATURES DS1305EN+T&R
• Completely Manages All Timekeeping Functions
o Real-Time Clock (RTC) Counts Seconds,
Minutes, Hours, Date of the Month,
Month, Day of the Week, and Year with
Leap-Year Compensation Valid Up to 2100
o 96-Byte, Battery-Backed NV RAM for
Data Storage
o Two Time-Of-Day Alarms,
Programmable on Combination of
Seconds, Minutes, Hours, and Day of the
Week
• Standard Serial Port Interfaces with Most
Microcontrollers
o Supports SPI (Serial Peripheral Interface)
Modes 1 and 3 or Standard 3-Wire
Interface
o Burst Mode for Reading/Writing
Successive Addresses in Clock/RAM