Datasheet

ManualsBrandsNXP SEMICONDUCTORS ManualsIntegrated Circuits (ICs)Timer IC t- real time clock Clock/calendar SO 20

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PCF2127AT All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.

Product data sheet Rev. 6 — 11 July 2013 5 of 86

NXP Semiconductors

PCF2127AT

Integrated RTC, TCXO and quartz crystal

BBS 18 output voltage (battery backed)

V

BAT

19 battery supply voltage (backup)

connect to V

SS

if battery switch over is not used

V

DD

20 supply voltage

Table 4. Pin description of SO20 (PCF2127AT)

…continued

Symbol Pin Description