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PCF2127AT Datasheet(PDF) 65 Page - NXP Semiconductors |
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PCF2127AT Datasheet(HTML) 65 Page - NXP Semiconductors |
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65 / 100 page  PCF2127 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved. Product data sheet Rev. 8 — 19 December 2014 65 of 100 NXP Semiconductors PCF2127 Accurate RTC with integrated quartz crystal for industrial applications In this example, the registers Months and Years are read. The pins SDI and SDO are not connected together. For this configuration, it is important that pin SDI is never left floating. It must always be driven either HIGH or LOW. If pin SDI is left open, high IDD currents may result. a. Reading month and year b. Reading from RAM address 12h Fig 39. SPI-bus read examples |
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