PCF2129AT datasheet(59/86 Pages) PHILIPS

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PCF2129

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Product data sheet

Rev. 7 — 19 December 2014

59 of 86

NXP Semiconductors

PCF2129

Accurate RTC with integrated quartz crystal for industrial applications

13. Static characteristics

Table 79.

Static characteristics

VDD = 1.8 V to 4.2 V; VSS =0V; Tamb = 40 C to +85 C, unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Supplies

VDD

supply voltage

[1] 1.8-

4.2V

VBAT

battery supply voltage

1.8

4.2

VDD(cal)

calibration supply voltage

3.3

Vlow

low voltage

1.2

IDD

supply current

interface active;

supplied by VDD

SPI-bus (fSCL = 6.5 MHz)

800

A

I2C-bus (fSCL = 400 kHz)

200

A

interface inactive (fSCL =0Hz)[2];

TCR[1:0] = 00 (see Table 13 on page 12)

PWRMNG[2:0] = 111 (see Table 19 on page 16);

TSOFF = 1 (see Table 58 on page 41);

COF[2:0] = 111 (see Table 15 on page 14)

VDD = 1.8 V

470

VDD = 3.3 V

700

1500

VDD = 4.2 V

800

PWRMNG[2:0] = 111 (see Table 19 on page 16);

TSOFF = 1 (see Table 58 on page 41);

COF[2:0] = 000 (see Table 15 on page 14)

VDD = 1.8 V

560

VDD = 3.3 V

850

VDD =4.2 V

1050

PWRMNG[2:0] = 000 (see Table 19 on page 16);

TSOFF = 0 (see Table 58 on page 41);

COF[2:0] = 111 (see Table 15 on page 14)

VDD or VBAT =1.8 V

[3] -

1750

VDD or VBAT =3.3 V

[3] -

2150

VDD or VBAT =4.2 V

[3] -

2350

3500

PWRMNG[2:0] = 000 (see Table 19 on page 16);

TSOFF = 0 (see Table 58 on page 41);

COF[2:0] = 000 (see Table 15 on page 14)

VDD or VBAT =1.8 V

[3] -

1840

VDD or VBAT =3.3 V

[3] -

2300

VDD or VBAT =4.2 V

[3] -

2600

IL(bat)

battery leakage current

VDD is active supply;

VBAT = 3.0 V

100

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