PCF2131 datasheet(63/86 Pages) NXP

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NXP Semiconductors

PCF2131

Nano-power highly accurate RTC with integrated quartz crystal

aaa-042113

400

800

1200

1600

2000

VDD (V)

IDD

(nA)

CLKOUT off

CLKOUT enabled at 32 kHz

a. PWRMNG[2:0] = 111; TSOFF = 1; Tamb = 25 °C; TS input floating

aaa-042114

400

800

1200

1600

2000

VDD (V)

IDD

(nA)

CLKOUT off

CLKOUT enabled at 32 kHz

b. PWRMNG[2:0] = 000; TSOFF = 0; Tamb = 25 °C; TS input floating

Figure 38. IDD as a function of VDD

9.2 Frequency characteristics

VDD = 1.2 V to 5.5 V; VSS = 0 V; Tamb = +25 °C, unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

output frequency

on pin CLKOUT;

VDD = 3.3 V;

COF[2:0] = 000;

AO[3:0] = 1000

32.768

kHz

VDD or VBAT = 3.3 V, Tamb =

-40 °C to +85 °C

TC_DIS = 0

[1][2] - 8

±3

ppm

Δf/f

time accuracy

TC_DIS = 1

[1][2] - 200

ppm

Table 90. Frequency characteristics

PCF2131

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Product data sheet

Rev. 1.0 — 28 May 2021

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