PCF2123TS datasheet(39/54 Pages) NXP

39 / 54 page

PCF2123_1

Product data sheet

Rev. 01 — 19 November 2008

39 of 54

NXP Semiconductors

PCF2123

SPI Real time clock/calendar

11. Static characteristics

Table 44.

Static characteristics

VDD = 1.1 V to 5.5 V; VSS =0V; Tamb = −40 °C to +85 °C; fosc = 32.768 kHz; quartz Rs =15kΩ; CL = 7 pF; unless otherwise

speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Supplies

VDD

supply voltage

for clock data integrity;

SPI-bus inactive

[1] 1.1

5.5

Tamb =25 °C

0.9

SPI-bus active

1.6

5.5

IDD

supply current

SPI-bus active

fSCL = 4.5 MHz;

VDD =5V

250

400

µA

fSCL = 1.0 MHz;

VDD =3V

-30

µA

SPI-bus inactive;

CLKOUT disabled

[2]

Tamb =25 °C;

VDD = 2.0 V

100

Tamb =25 °C;

VDD = 3.0 V

110

Tamb =25 °C;

VDD = 5.0 V

120

SPI-bus inactive;

CLKOUT disabled;

Tamb = −40 °C to +85 °C

[2]

VDD = 2.0 V

330

VDD = 3.0 V

350

VDD = 5.0 V

380

SPI-bus inactive;

CLKOUT enabled at 32 kHz;

Tamb =25 °C

VDD = 2.0 V

260

VDD = 3.0 V

340

VDD = 5.0 V

520

SPI-bus inactive;

CLKOUT enabled at 32 kHz;

Tamb = −40 °C to +85 °C

VDD = 2.0 V

450

VDD = 3.0 V

550

VDD = 5.0 V

750

Inputs

VIL

LOW-level input voltage

0.3VDD

VIH

HIGH-level input voltage

0.7VDD

--V

input voltage

on pins CE, SDI, SCL, OSCI,

CLKOE, CLKOUT

−0.5

5.5

PCF2123TS датащи(PDF) 39 Page - NXP Semiconductors

PCF2123TS датащи(HTML) 39 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

датащи скачать

ссылки URL