PCF8564AUSLASH10AASLASH1 datasheet(26/44 Pages) NXP

26 / 44 page

PCF8564A_1

Product data sheet

Rev. 1 — 8 October 2009

26 of 44

NXP Semiconductors

PCF8564A

Real time clock and calendar

13. Static characteristics

Table 29.

Static characteristics

VDD = 1.8 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

Supplies

VDD

supply voltage

interface inactive;

Tamb =25 °C

[1] 1.0

5.5

interface active;

fSCL = 400 kHz

[1] 1.8

5.5

for clock data integrity;

Tamb =25 °C

Vlow

5.5

IDD

supply current

interface active

fSCL = 400 kHz

800

µA

fSCL = 100 kHz

200

µA

interface inactive (fSCL = 0 Hz);

CLKOUT disabled;

Tamb =25 °C

[2] [3]

[4]

VDD = 5.0 V

275

550

VDD = 3.0 V

250

500

VDD = 2.0 V

225

450

interface inactive (fSCL = 0 Hz);

CLKOUT disabled;

Tamb = −40 °C to +85 °C

[2] [3]

[4]

VDD = 5.0 V

500

750

VDD = 3.0 V

400

650

VDD = 2.0 V

400

600

interface inactive (fSCL = 0 Hz);

CLKOUT enabled at 32 kHz;

Tamb =25 °C

[4] [5]

[6]

VDD = 5.0 V

1500

3000

VDD = 3.0 V

1000

2000

VDD = 2.0 V

700

1400

interface inactive (fSCL = 0 Hz);

CLKOUT enabled at 32 kHz;

Tamb = −40 °C to +85 °C

[4] [5]

[6]

VDD = 5.0 V

1700

3400

VDD = 3.0 V

1100

2200

VDD = 2.0 V

800

1600

Inputs

input voltage

on pins SDA and SCL

−0.5

+5.5

on pins CLKOE and CLKOUT

(test mode)

−0.5

VDD + 0.5 V

VIL

LOW-level input voltage

0.3VDD

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