PCF2131 datasheet(59/85 Pages) NXP

59 / 85 page

NXP Semiconductors

PCF2131

Nano-power highly accurate RTC with integrated quartz crystal

VDD = 1.2 V to 5.5 V; VSS = 0 V; Tamb = -40 °C to +85 °C, unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

COF[2:0] = 000 (see Table 18)

TC_DIS = 0 (see Table 5); 100TH_S_DIS = 0 (see Table 5)

VDD = 1.8 V, VBAT = 1.5 V

[5] -

640

945

VDD = 3.3 V, VBAT = 3.3 V

[5] -

1060

1410

VDD = 5.5 V, VBAT = 3.3 V

[5] -

1705

2190

VBAT = 1.2 V, IBAT

[6] -

130

390

VBAT = 3.3 V, IBAT

[6] -

145

390

supply current [2]

VBAT = 5.5 V, IBAT

[6] -

210

500

IL(bat)

battery leakage current

VDD is active supply;

VBAT = 3.0 V

0.1

Power management

Vth(sw)bat

battery switch threshold

voltage

2.3

2.5

Vth(bat)low

low battery threshold

voltage

2.3

2.5

Inputs [7]

input voltage

-0.5

VDD +

0.5

0.25VDD V

VIL

LOW-level input voltage

Tamb = -40 °C to +85 °C;

VDD > 2.0 V

0.3VDD V

VIH

HIGH-level input voltage

0.7VDD

VI = VDD or VSS

µA

ILI

input leakage current

post ESD event

-1

µA

input capacitance

[8] -

Outputs

on pins INTA/B, referring to

external pull-up

-0.5

5.5

output voltage

on pin BBS

[9]

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 V

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 V

IOL

LOW-level output current output sink current;

VOL = 0.4 V

Table 89. Static characteristics...continued

PCF2131

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

Product data sheet

Rev. 2.0 — 5 October 2023

59 / 85

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