PCF8564A_1

© NXP B.V. 2009. All rights reserved.

Product data sheet

Rev. 1 — 8 October 2009

27 of 44

NXP Semiconductors

PCF8564A

Real time clock and calendar

[1]

[2]

⁄

[3]

CLKOUT disabled (FE = 0 or CLKOE = 0).

[4]

[5]

CLKOUT is open circuit.

[6]

Current consumption when the CLKOUT pin is enabled is a function of the load on the pin, the output frequency, and the supply voltage.

The additional current consumption for a given load is calculated from:

.

[7]

Tested on sample basis.

HIGH-level input voltage

--V

input leakage current

−10

+1

µA

input capacitance

[7] --7

pF

Outputs

output voltage

on pin CLKOUT

−0.5

-

on pin INT

−0.5

-

+5.5

V

LOW-level output current

on pin SDA;

3-

-

mA

on pin INT;

−1-

-

mA

on pin CLKOUT:

−1-

-

mA

HIGH-level output current

on pin CLKOUT;

1-

-

mA

output leakage current

−10

+1

µA

Voltage detector

low voltage

-

0.9

1.0

V

Table 29.

specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

I

DD

CV

DD

F

CLKOUT

×

×

=