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PCF2129AT 数据表(PDF) 43 Page - NXP Semiconductors |
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PCF2129AT 数据表(HTML) 43 Page - NXP Semiconductors |
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43 / 68 page ![]() PCF2129A_1 © NXP B.V. 2010. All rights reserved. Product data sheet Rev. 01 — 13 January 2010 43 of 68 NXP Semiconductors PCF2129A Integrated RTC, TCXO and quartz crystal Fig 24. STOP bit functional diagram 001aaj342 OSC 32768 Hz F0 16384 Hz F1 8192 Hz F2 4096 Hz 128 Hz F8 RES F9 64 Hz RES F10 LOWER PRESCALER UPPER PRESCALER RES F13 RES stop 1 Hz tick F14 Fig 25. STOP bit release timing 001aaj343 0 ms - 15.625 ms 64 Hz stop released |
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