Real Time Clocks

RTC TRICKLE-CHARGE 31X8 RAM 8SOIC (150mil)

IC RTC ELAPSED CNT I2C 8SOIC

HYM8563是一款低功耗CMOS实时时钟/日历芯片，它提供一个可编程的时钟输出，一个中断输出和一个掉电检测器，所有的地址和数据都通过I2C总线接口串行传递。最大总线速度为400Kbits/s，每次读写数据后，内嵌的字地址寄存器会自动递增。

实时时钟

The PCF85163 is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low power consumption. A programmable clock output, interrupt output, and voltage-low detector are also provided. All addresses and data are transferred serially via a two-line bidirectional I2C-bus. Maximum bus speed is 400 kbit/s. The register address is incremented automatically after each written or read data byte.

PCF85163 是一款低功耗 CMOS 实时时钟/日历芯片,它提供一个可编程的时钟输出,一个中断输出和一个掉电检测器,所有的地址和数据都通过 I2C 总线接口串行传递。最大总线速度为 400Kbits/s,每次读写数据后,内嵌的字地址寄存器会自动递增。

The BM85163 is a CMOS Real-Time Clock (RTC) and calendar optimized for low power consumption. A programmable clock output, interrupt output, and voltage-low detector are also provided. All addresses and data are transferred serially via a two-line bidirectional I2C-bus. Maximum bus speed is 400kbit/s. The register address is incremented automatically after each written or read data byte.

DS1302涓流充电计时芯片包含一个RTC/日历功能以及31字节的静态RAM。它可通过简单的串行接口与微处理器进行通信。RTC/日历功能可提供秒、分钟、小时、天、日期、月份和年份等信息。对于月份天数少于31天的月份，月末日期会自动进行调整，包括对闰年的修正。时钟既可以24小时制显示，也可以12小时制显示，并带有AM/PM指示。通过使用同步串行通信，将DS1302与微处理器进行接口连接变得更为简便。仅需三根导线即可与时钟/RAM进行通信:1)RST(复位)、2)1/O(数据线)和3)SCLK(串行时钟)。数据可以一次传输1个字节或最多以31个字节的突发形式从时钟/RAM中读取或写入。DS1302的设计旨在在极低的功耗下运行，并能够在不到1微瓦的功率下保留数据及时钟信息。 DS1302采用标准S0P8封装。

实时时钟/日历

实时时钟/日历

Ultra-Low Power RTC

RTC实时时钟芯片

The low-voltage serial-peripheral interface (SPI™) DS1390/DS1391/DS1394 and the low-voltage 3-wire DS1392/DS1393 real-time clocks (RTCs) are clocks/calendars that provide hundredths of a second, 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 corrections for leap year. The clock operates in either the 24-hour or 12-hour format with an AM/PM indicator. One programmable time-of-day alarm is provided. A temperature-compensated voltage reference monitors the status of V CC and automatically disables the bus interface and switches to the backup supply if a power failure is detected. On the DS1390, a single open drain output provides a CPU interrupt or a square wave at one of four selectable frequencies. The DS1391 replaces the SQW/active-low INT pin with an active-low RST output/debounced input. The DS1390, DS1391, and DS1394 are programmed serially through an SPI-compatible, bidirectional bus. The DS1392 and DS1393 communicate over a 3-wire serial bus, and the extra pin is used for either a separate interrupt pin or an active-low RST output/debounced input. All five devices are available in a 10-pin µSOP package, and are rated over the industrial temperature range. Applications Embedded Time Stamping GPS/Telematics Devices Handheld Devices Medical Devices