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PCF8564A 数据表(PDF) 68 Page - NXP Semiconductors

部件名 PCF8564A
功能描述  Nano-power highly accurate RTC with integrated quartz crystal for automotive applications
PDF  86 Pages
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制造商  NXP [NXP Semiconductors]
网页  http://www.nxp.com
标志 NXP - NXP Semiconductors

PCF8564A 数据表(HTML) 68 Page - NXP Semiconductors

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NXP Semiconductors
PCA2131
Nano-power highly accurate RTC with integrated quartz crystal for automotive applications
11 Application information
The PCA2131TF/Q900 is AEC-Q100 compliant for automotive applications. The
operating temperature range is from -40 °C to +105 °C and the time accuracy with
temperature compensation is:
• ±3 ppm typical with ±8 ppm min/max from -40 °C to +85 °C
• ±8 ppm typical with ±15 ppm min/max from +85 °C to +105 °C
Above the maximum guaranteed operating temperature of +105 °C to the maximum
ambient temperature of +125 °C the PCA2131TF/Q900 TCXO, RTC and digital
interfaces (I2C and SPI) functions continue to be operational with the supply current
increasing proportionally to temperature (see Figure 37 for the trend). The temperature
compensation circuity also continues to function and typical time accuracy of ±8 ppm has
been measured on the bench.
The general application diagram is shown in Figure 42.
aaa-041588
VDD
VDD(in)
VDD
VBAT
BBS
VDD
INTA
BBS
SDI
SDO
SDA/CE
IFS
TS1
CLKOUT
CLKOUT
SCL
VSS
Rsup
Csup
100 nF
100 nF
1 to 100 nF
RPU
Interface
PCA2131
INTA
I2C
SPI
TS2
TS3
TS4
VDD
INTB
RPU
INTB
RPU: 10 kΩ is recommended.
RSUP and CSUP: An appropriate RC filter needs to be added to guarantee the chip will only see
<0.35 V/ms ramp down rate on supply, even if Vdd_in ramp rate is very high.
Figure 42. General application diagram
PCA2131
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2021. All rights reserved.
Product data sheet
Rev. 1.0 — 26 July 2021
68 / 86



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