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PDF UM10698 Data sheet ( Hoja de datos )
| Número de pieza | UM10698 | |
| Descripción | User manual for I2C-bus RTC demoboard OM11059A | |
| Fabricantes | NXP Semiconductors | |
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UM10698
User manual for I2C-bus RTC demoboard OM11059A
Rev. 2 — 04 April 2013
User manual
Document information
Info Content
Keywords
Abstract
PCF85063TP, PCF86063ATL, OM11059A, demoboard, how to get
started, I2C-bus, RTC, Real-Time Clock, tuning
User manual for the RTC I2C-bus demoboard OM11059A which contains
PCF85063TP and PCF85063ATL
http://www.DataSheet4U.net/
datasheet pdf - http://www.DataSheet4U.net/
1 page  
NXP Semiconductors
UM10698
User manual for I2C-bus RTC demoboard OM11059A
3. Hardware set-up
3.1 General requirements for the RTCs PCF85063TP and PCF85063ATL
The RTC circuit just requires one external part: the tuning fork quartz as resonator. The
oscillation capacitors are integrated and therefore there is no need for external
capacitors. The quartz crystal must be placed close to the RTC circuit, avoiding long
lines which may pick up noise. Avoid any tracks with high frequency signals (fast edges)
close to the RTC, quartz, or quartz interconnect.
The interface is the standard Fast Mode I2C-bus, operating up to 400 kHz. Adjust pull-up
values to match the required interface speed keeping them as high impedance as
possible for power system saving. Ensure that the specified minimum requirements of
the hold times tLOW and tHIGH are fulfilled.
Supply voltage: The RTC is specified from 1.8 V to 5.5 V. The RTC, excluding the I2C-
bus interface, is however operating down to a lower voltage. It is recommended to have a
decoupling capacitor on the VDD-VSS rails close by.
Due to the low power consumption of below 1 μW, no precautions for heat dissipations
are required.
CLKOUT can be used to measure the frequency or be used as reference for frequency
generation with a PLL.
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Fig 3. Interfacing to microcontroller
UM10698
User manual
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 04 April 2013
© NXP B.V. 2013. All rights reserved.
5 of 13
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NXP Semiconductors
UM10698
User manual for I2C-bus RTC demoboard OM11059A
6. Legal information
6.1 Definitions
Draft — The document is a draft version only. The content is still under
internal review and subject to formal approval, which may result in
modifications or additions. NXP Semiconductors does not give any
representations or warranties as to the accuracy or completeness of
information included herein and shall have no liability for the consequences
of use of such information.
6.2 Disclaimers
Limited warranty and liability — Information in this document is believed to
be accurate and reliable. However, NXP Semiconductors does not give any
representations or warranties, expressed or implied, as to the accuracy or
completeness of such information and shall have no liability for the
consequences of use of such information.
In no event shall NXP Semiconductors be liable for any indirect, incidental,
punitive, special or consequential damages (including - without limitation -
lost profits, lost savings, business interruption, costs related to the removal
or replacement of any products or rework charges) whether or not such
damages are based on tort (including negligence), warranty, breach of
contract or any other legal theory.
Notwithstanding any damages that customer might incur for any reason
whatsoever, NXP Semiconductors’ aggregate and cumulative liability
towards customer for the products described herein shall be limited in
accordance with the Terms and conditions of commercial sale of NXP
Semiconductors.
Right to make changes — NXP Semiconductors reserves the right to make
changes to information published in this document, including without
limitation specifications and product descriptions, at any time and without
notice. This document supersedes and replaces all information supplied prior
to the publication hereof.
Suitability for use — NXP Semiconductors products are not designed,
authorized or warranted to be suitable for use in life support, life-critical or
safety-critical systems or equipment, nor in applications where failure or
malfunction of an NXP Semiconductors product can reasonably be expected
to result in personal injury, death or severe property or environmental
damage. NXP Semiconductors accepts no liability for inclusion and/or use of
NXP Semiconductors products in such equipment or applications and
therefore such inclusion and/or use is at the customer’s own risk.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. NXP Semiconductors makes no
representation or warranty that such applications will be suitable for the
specified use without further testing or modification.
Customers are responsible for the design and operation of their applications
and products using NXP Semiconductors products, and NXP
Semiconductors accepts no liability for any assistance with applications or
customer product design. It is customer’s sole responsibility to determine
whether the NXP Semiconductors product is suitable and fit for the
customer’s applications and products planned, as well as for the planned
application and use of customer’s third party customer(s). Customers should
provide appropriate design and operating safeguards to minimize the risks
associated with their applications and products.
NXP Semiconductors does not accept any liability related to any default,
damage, costs or problem which is based on any weakness or default in the
customer’s applications or products, or the application or use by customer’s
third party customer(s). Customer is responsible for doing all necessary
testing for the customer’s applications and products using NXP
Semiconductors products in order to avoid a default of the applications and
the products or of the application or use by customer’s third party
customer(s). NXP does not accept any liability in this respect.
Export control — This document as well as the item(s) described herein
may be subject to export control regulations. Export might require a prior
authorization from competent authorities.
Evaluation products — This product is provided on an “as is” and “with all
faults” basis for evaluation purposes only. NXP Semiconductors, its affiliates
and their suppliers expressly disclaim all warranties, whether express,
implied or statutory, including but not limited to the implied warranties of non-
infringement, merchantability and fitness for a particular purpose. The entire
risk as to the quality, or arising out of the use or performance, of this product
remains with customer.
In no event shall NXP Semiconductors, its affiliates or their suppliers be
liable to customer for any special, indirect, consequential, punitive or
incidental damages (including without limitation damages for loss of
business, business interruption, loss of use, loss of data or information, and
the like) arising out the use of or inability to use the product, whether or not
based on tort (including negligence), strict liability, breach of contract, breach
of warranty or any other theory, even if advised of the possibility of such
damages.
Notwithstandinghttp://www.DataSheet4U.net/ any damages that customer might incur for any reason
whatsoever (including without limitation, all damages referenced above and
all direct or general damages), the entire liability of NXP Semiconductors, its
affiliates and their suppliers and customer’s exclusive remedy for all of the
foregoing shall be limited to actual damages incurred by customer based on
reasonable reliance up to the greater of the amount actually paid by
customer for the product or five dollars (US$5.00). The foregoing limitations,
exclusions and disclaimers shall apply to the maximum extent permitted by
applicable law, even if any remedy fails of its essential purpose.
Translations — A non-English (translated) version of a document is for
reference only. The English version shall prevail in case of any discrepancy
between the translated and English versions.
6.3 Trademarks
Notice: All referenced brands, product names, service names and
trademarks are property of their respective owners.
UM10698
User manual
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 04 April 2013
© NXP B.V. 2013. All rights reserved.
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