PCF2120 datasheet(5/14 Pages) NXP

5 / 14 page

PCF2120_1

Product data sheet

Rev. 01 — 5 February 2008

5 of 14

NXP Semiconductors

PCF2120

Quartz oscillator

11. Static characteristics

[1]

For reliable oscillator start-up at power-up: VDD >VDD(min) + 0.3 V.

Table 5.

Static characteristics

VDD = 1.5 V to 5.5 V; VSS =0V; Tamb = −40 °C to +85 °C; fosc = 32.768 kHz; quartz Rs =40kΩ; CL = 8 pF; unless otherwise

speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Supply

VDD

supply voltage

[1] 1.5

5.5

IDD

supply current

clock output disabled

Tamb =25 °C

VDD = 5.0 V

300

550

VDD = 3.0 V

235

500

VDD = 2.0 V

210

450

Tamb = −40 °C to +85 °C

VDD = 5.0 V

345

750

VDD = 3.0 V

265

650

VDD = 2.0 V

230

600

clock output enabled at 32 kHz

[2]

Tamb =25 °C

VDD = 5.0 V

1310

1700

VDD = 3.0 V

845

1100

VDD = 2.0 V

615

900

Tamb = −40 °C to +85 °C

VDD = 5.0 V

1385

1700

VDD = 3.0 V

875

1100

VDD = 2.0 V

635

900

Inputs

Pin OSCI

input voltage

−0.5

VDD + 0.5 V

Pin CLKOE

input voltage

−0.5

VDD + 0.5 V

VIL

LOW-level input voltage

0.3VDD

VIH

HIGH-level input voltage

0.7VDD --

ILI

input leakage current

VI =VDD or VSS

−10

µA

Outputs

Pin OSCO

−0.5

VDD + 0.5 V

Pin CLKOUT

output voltage

−0.5

VDD + 0.5 V

IOL

LOW-level output current

VOL = 0.4 V; VDD =5V

−1-

IOH

HIGH-level output current

VOH = 4.6 V; VDD = 5 V

--1

ILO

output leakage current

VO =VDD or VSS

−10

µA

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