PCF8564A datasheet(84/86 Pages) NXP

84 / 86 page

NXP Semiconductors

PCA2131

Nano-power highly accurate RTC with integrated quartz crystal for automotive applications

Fig. 34.

Bus protocol, reading from registers ............... 57

Fig. 35.

Device diode protection diagram of

PCA2131 ......................................................... 57

Fig. 36.

IOL on pin SDA/CE .........................................62

Fig. 37.

IDD as a function of temperature .................... 62

Fig. 38.

IDD as a function of VDD ............................... 63

Fig. 39.

Typical characteristic of frequency with

respect to temperature of PCA2131 ................64

Fig. 40.

SPI-bus timing .................................................66

Fig. 41.

I2C-bus timing diagram; rise and fall times

refer to 30 % and 70 % .................................. 67

Fig. 42.

General application diagram ........................... 68

Fig. 43.

Package outline SOT1992-1 (HLSON16) ........69

Fig. 44.

Package outline SOT1992-1 (HLSON16);

detail G ............................................................70

Fig. 45.

Package outline SOT1992-1 (HLSON16);

notes ................................................................71

Fig. 46.

Footprint information part 1 for reflow

soldering of SOT1992-1 (HLSON16) ...............73

Fig. 47.

Footprint information part 2 for reflow

soldering of SOT1992-1 (HLSON16) ...............74

Fig. 48.

Footprint information part 3 for reflow

soldering of SOT1992-1 (HLSON16) ...............75

PCA2131

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Product data sheet

Rev. 1.0 — 26 July 2021

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