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PCF8563 Datasheet(PDF) 32 Page - NXP Semiconductors |
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PCF8563 Datasheet(HTML) 32 Page - NXP Semiconductors |
32 / 32 page ![]() NXP Semiconductors PCF8563 Real-time clock/calendar © NXP B.V. 2008. All rights reserved. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Date of release: 21 February 2008 Document identifier: PCF8563_6 Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. 19. Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . 1 2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 5 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2 6 Pinning information . . . . . . . . . . . . . . . . . . . . . . 3 6.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 7 Functional description . . . . . . . . . . . . . . . . . . . 4 7.1 Alarm function modes . . . . . . . . . . . . . . . . . . . . 4 7.2 Timer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 7.3 Clock output . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 7.4 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 7.5 Voltage-low detector . . . . . . . . . . . . . . . . . . . . . 5 7.6 Register organization . . . . . . . . . . . . . . . . . . . . 6 7.6.1 Control_status_1 register . . . . . . . . . . . . . . . . . 6 7.6.2 Control_status_2 register . . . . . . . . . . . . . . . . . 6 7.6.3 Time and date registers . . . . . . . . . . . . . . . . . . 7 7.6.4 Alarm registers . . . . . . . . . . . . . . . . . . . . . . . . . 9 7.6.5 Clock output control register . . . . . . . . . . . . . . 10 7.6.6 Countdown timer. . . . . . . . . . . . . . . . . . . . . . . 10 7.7 EXT_CLK test mode . . . . . . . . . . . . . . . . . . . . 11 7.8 Power-On Reset (POR) override . . . . . . . . . . 12 8 Characteristics of the I2C-bus. . . . . . . . . . . . . 13 8.1 Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8.2 Start and stop conditions . . . . . . . . . . . . . . . . 13 8.3 System configuration . . . . . . . . . . . . . . . . . . . 14 8.4 Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 14 8.5 I2C-bus protocol . . . . . . . . . . . . . . . . . . . . . . . 15 8.5.1 Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 8.5.2 Clock/calendar read/write cycles . . . . . . . . . . 15 9 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 17 10 Static characteristics. . . . . . . . . . . . . . . . . . . . 17 11 Dynamic characteristics . . . . . . . . . . . . . . . . . 20 12 Application information. . . . . . . . . . . . . . . . . . 21 12.1 Quartz frequency adjustment . . . . . . . . . . . . . 22 12.1.1 Method 1: fixed OSCI capacitor . . . . . . . . . . . 22 12.1.2 Method 2: OSCI trimmer. . . . . . . . . . . . . . . . . 22 12.1.3 Method 3: OSCO output . . . . . . . . . . . . . . . . . 22 13 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 23 14 Handling information. . . . . . . . . . . . . . . . . . . . 27 15 Soldering of SMD packages . . . . . . . . . . . . . . 27 15.1 Introduction to soldering . . . . . . . . . . . . . . . . . 27 15.2 Wave and reflow soldering . . . . . . . . . . . . . . . 27 15.3 Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 27 15.4 Reflow soldering. . . . . . . . . . . . . . . . . . . . . . . 28 16 Revision history . . . . . . . . . . . . . . . . . . . . . . . 30 17 Legal information . . . . . . . . . . . . . . . . . . . . . . 31 17.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 31 17.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 17.3 Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 31 17.4 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 31 18 Contact information . . . . . . . . . . . . . . . . . . . . 31 19 Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 |
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