Real time clock and calendar

文件：386.49 Kbytes 頁數(shù)：48 Pages

恩XP

Real time clock and calendar

文件：386.49 Kbytes 頁數(shù)：48 Pages

恩XP

實(shí)時(shí)時(shí)鐘和日歷

PCF8564A是一款CMOS實(shí)時(shí)時(shí)鐘和日歷，最適合低功耗應(yīng)用。還提供可編程時(shí)鐘輸出、中斷輸出和電壓過低檢測器。所有地址和數(shù)據(jù)都可通過兩線路雙向I2C總線串行傳輸。最大總線速度為400 kbit/s。每次寫入或讀取數(shù)據(jù)字節(jié)后會自動遞增內(nèi)置字地址寄存器。 基于32.768 kHz石英晶體提供年、月、日、周、時(shí)、分和秒\n寬時(shí)鐘工作電壓范圍：1.0 V至5.5 V\n低備用電流在3.0 V和25 ℃時(shí)典型為250 nA\n400 kHz雙線I2C接口（1.8 V至5.5 V）\n低電壓檢測器\n警報(bào)和定時(shí)器功能\n兩個(gè)集成式振蕩器電容\n可編程時(shí)鐘輸出（32.768 kHz、1.024 kHz、32 Hz和1 Hz）給外圍器件\n內(nèi)部上電復(fù)位(POR)\nI2C從機(jī)地址：讀取A3h、寫入A2h;

恩XP

Real time clock and calendar

The PCF8564A is a CMOS real-time clock 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. Th Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal\nWide clock operating voltage: 1.0 V to 5.5 V\nLow back-up current typical 250 nA at 3.0 V and 25 ℃\n400 kHz two-wire I2C interface (1.8 V to 5.5 V)\nLow-voltage detector\nAlarm and timer functions\n;

恩XP

Real time clock and calendar

The PCF8564A is a CMOS real-time clock 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. Th Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal\nWide clock operating voltage: 1.0 V to 5.5 V\nLow back-up current typical 250 nA at 3.0 V and 25 ℃\n400 kHz two-wire I2C interface (1.8 V to 5.5 V)\nLow-voltage detector\nAlarm and timer functions\n;

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