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PCF85363ATL/A 数据表(PDF) 41 Page - NXP Semiconductors |
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PCF85363ATL/A 数据表(HTML) 41 Page - NXP Semiconductors |
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41 / 86 page  NXP Semiconductors PCF85363A Tiny Real-Time Clock/calendar with 64 byte RAM, alarm function, battery switch-over time stamp input, and I2C-bus Due to the nature of the power switch circuit there is a switching hysteresis (see Figure 22 and Table 67). VDD increasing VDD decreasing switching point hysteresis VDD t battery operation switch to battery switch to VDD VDD operation VDD operation Vth(low) Vth(high) max typ min RTC power supply aaa-010665 Figure 22. Threshold voltage switching hysteresis 7.11.3.1 Switching at the Vth level, BSM[1:0] = 00 aaa-010423 internal power supply cleared via interface BSF Vth VDD (= 0 V) VBAT VDD INTA battery mode indication interface active interface inactive interface active I2C Figure 23. Switching at Vth PCF85363A All information provided in this document is subject to legal disclaimers. © NXP B.V. 2021. All rights reserved. Product data sheet Rev. 3.1 — 18 June 2021 41 / 86 |
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