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PCF8564ACX9/1 数据表(PDF) 1 Page - NXP Semiconductors |
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PCF8564ACX9/1 数据表(HTML) 1 Page - NXP Semiconductors |
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1 / 44 page  1. General description The PCF8564A is a CMOS1 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. The built-in word address register is incremented automatically after each written or read data byte. 2. Features I Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal I Century flag I Wide clock operating voltage: 1.0 V to 5.5 V I Low back-up current typical 250 nA at 3.0 V and 25 °C I 400 kHz two-wire I2C interface (1.8 V to 5.5 V) I Low-voltage detector I Alarm and timer functions I Two integrated oscillator capacitors I Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz and 1 Hz) I Internal Power-On Reset (POR) I I2C slave address: read A3h, write A2h 3. Applications I Mobile telephones I Portable instruments I Electronic metering I Battery powered products PCF8564A Real time clock and calendar Rev. 1 — 8 October 2009 Product data sheet 1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 20. |
类似零件编号 - PCF8564ACX9/1 |
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类似说明 - PCF8564ACX9/1 |
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