DS1306应用电路 (带有闹钟的串行实时时钟)
ds1306应用电路 (带有闹钟的串行实时时钟)
典型工作电路
the ds1306 serial alarm real-time clock (rtc) 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.
an interface logic-power supply input pin (vccif) allows the ds1306 to drive sdo and 32khz pins to a level that is compatible with the interface logic. this allows an easy interface to 3v logic in mixed supply systems. the ds1306 offers dual-power supplies as well as a battery-input pin. the dual-power supplies support a programmable trickle charge circuit that allows a rechargeable energy source (such as a super cap or rechargeable battery) to be used for a backup supply. the vbat pin allows the device to be backed up by a non-rechargeable battery. the ds1306 is fully operational from 2.0v to 5.5v.
two programmable time-of-day alarms are provided by the ds1306. each alarm can generate an interrupt on a programmable combination of seconds, minutes, hours, and day. don't care states can be inserted into one or more fields if it is desired for them to be ignored for the alarm condition. a 1hz and a 32khz clock output are also available.
the ds1306 supports a direct interface to spi™ serial data ports or standard 3-wire interface. an easy-to use address and data format is implemented in which data transfers can occur 1-byte at a time or in multiple-byte burst mode®.
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典型工作电路
the ds1306 serial alarm real-time clock (rtc) 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.
an interface logic-power supply input pin (vccif) allows the ds1306 to drive sdo and 32khz pins to a level that is compatible with the interface logic. this allows an easy interface to 3v logic in mixed supply systems. the ds1306 offers dual-power supplies as well as a battery-input pin. the dual-power supplies support a programmable trickle charge circuit that allows a rechargeable energy source (such as a super cap or rechargeable battery) to be used for a backup supply. the vbat pin allows the device to be backed up by a non-rechargeable battery. the ds1306 is fully operational from 2.0v to 5.5v.
two programmable time-of-day alarms are provided by the ds1306. each alarm can generate an interrupt on a programmable combination of seconds, minutes, hours, and day. don't care states can be inserted into one or more fields if it is desired for them to be ignored for the alarm condition. a 1hz and a 32khz clock output are also available.
the ds1306 supports a direct interface to spi™ serial data ports or standard 3-wire interface. an easy-to use address and data format is implemented in which data transfers can occur 1-byte at a time or in multiple-byte burst mode®.
恩智浦、思科投资Cohda Wireless，助推互联汽车
光电集成滑环与激光加工设备行业之间的联系
热处理变形的原因_减小热处理变形的方法
数字中国建设整体布局规划印发 做强做优做大数字经济
电源滤波中X/Y安规电容最全面解析
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用于PLC的精密信号处理和数据转换IC实现更高的性能
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