PCF8564A datasheet(61/86 Pages) NXP

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NXP Semiconductors

PCA2131

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

VDD = 1.2 V to 5.5 V; VSS = 0 V; Tamb = -40 °C to +105 °C, unless otherwise specified.

Symbol Parameter

Conditions

Min

Typ

Max

85 °C

Max

105 °C

Unit

VIH

HIGH-level input

voltage

0.7VDD

VI = VDD or VSS

µA

ILI

input leakage current

post ESD event

-1

µA

input capacitance

[9] -

Outputs

on pins INTA/B, referring

to external pull-up

-0.5

5.5

output voltage

on pin BBS

[10]

1.2

5.5

VOH

HIGH output voltage on pin SDO, CLKOUT at

1 mA source current

0.8VDD

VDD

on pins CLKOUT, INTA/

B and SDO at 1 mA sink

current

VSS

0.2VDD

on pin SDA, VDD

> 2.0 V, 3 mA sink

current

0.4

VOL

LOW output voltage

on pin SDA, VDD

< 2.0 V, 2 mA sink

current

0.2VDD

output sink current;

VOL = 0.4 V

on pin SDA/CE

[11] 3

IOL

LOW-level output

current

on all other outputs

1.0

IOH

HIGH-level output

current

output source current; on

pin SDO, CLKOUT; VOH

= 0.8 * VDD

1.0

VO = VDD or VSS

µA

ILO

output leakage

current

post ESD event

-1

µA

Table 89. Static characteristics...continued

[1]

For reliable oscillator start-up and OTP refresh at power-on: VDD needs to be above 1.8 V.

[2]

MAX IDD and IBAT determined by characterization.

[3]

Timer source clock = 1⁄60 Hz, level of pins SDA/CE, SDI, and SCL is VDD or VSS.

[4]

Production tested IDDparameter.

[5]

Any load in the application driven by CLKOUT adds to this value, e.g. 10 pF, Vdd = 3v3 will add 32768 Hz * 10 pF * 3.3 V = 1.1 µA.

[6]

Any load in the application driven by CLKOUT adds to this value, e.g. 10 pF, Vdd = 3v3 will add 32768 Hz * 10 pF * 3.3 V = 1.1 µA.

[7]

When the device is supplied by the VBAT pin instead of the VDD pin, VDD = 0 V. The device can only start up from VDD.

[8]

The I2C-bus and SPI-bus interfaces of PCA2131 are 5 V tolerant.

[9]

Tested on sample basis.

[10] Pin BBS is internally connected to either VDD or VBAT, see section Section 7.5.3.

[11] For further information, see Figure 36.

PCA2131

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 1.0 — 26 July 2021

61 / 86

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