PCF210AA NXP [NXP Semiconductors], PCF210AA Datasheet - Page 44
PCF210AA
Manufacturer Part Number
PCF210AA
Description
SPI Real time clock/calendar Time keeping application
Manufacturer
NXP [NXP Semiconductors]
Datasheet
1.PCF210AA.pdf
(63 pages)
NXP Semiconductors
14. Application information
PCF2123
Product data sheet
Fig 29. Typical application diagram
A 1 farad super capacitor combined with a low V
supply. With the RTC in its minimum power configuration i.e. timer off and CLKOUT off, the RTC
may operate for weeks.
All information provided in this document is subject to legal disclaimers.
supercapacitor
Rev. 5 — 27 April 2011
100 nF
1 F
OSCI
OSCO
V
DD
CLKOE
PCF2123
V
SS
CLKOUT
F
diode can be used as a standby or back-up
INT
SDO
SCL
SDI
CE
SPI Real time clock/calendar
001aai557
PCF2123
© NXP B.V. 2011. All rights reserved.
44 of 63
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