PCF85263ATLSLASHA datasheet(65/92 Pages) NXP

65 / 92 page

NXP Semiconductors

PCF85263A

Tiny Real-Time Clock/calendar with alarm function, battery switch-over, time stamp input, and I2C-bus

VDD = 0.9 V to 5.5 V; VSS = 0 V; Tamb = -40 °C to +85 °C; fosc = 32.768 kHz; quartz Rs = 60 kΩ; CL = 7 pF; all registers in

reset state; unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

battery switch enabled

Tamb = 25 °C

320

480

Tamb = 50 °C

370

550

Tamb = 85 °C

590

885

battery switch disabled

[4]

Tamb = 25 °C

280

420

Tamb = 50 °C

330

500

Tamb = 85 °C

550

825

CLKOUT disabled; VDD = 3.3 V;

interface active; fSCL = 400 kHz

μA

Reference voltage

HIGH falling VDD

2.4

2.6

2.8

HIGH rising VDD

2.5

2.7

2.95

LOW falling VDD

1.3

1.4

1.5

LOW rising VDD

1.37

1.47

1.6

Vth

threshold voltage

reference voltage hysteresis

±50

Inputs [5]

input voltage

-0.5

+5.5

VIL

LOW-level input

voltage

-0.5

+0.3VDD

VIH

HIGH-level input

voltage

0.7VDD

5.5

VI = VSS or VDD

μA

ILI

input leakage current

post ESD event

-0.5

+0.5

μA

input capacitance

[6] -

80 kΩ mode

[7] 68

kΩ

RPU(TS)

pull-up resistance on

pin TS

40 kΩ mode

[7] 36

kΩ

Outputs

VOH

HIGH-level output

voltage

on pin CLK, TS

0.8VDD

VDD

VOL

LOW-level output

voltage

on pins SDA, INTA, CLK, TS

VSS

0.2VDD

IOH

HIGH-level output

current

output source current;

VOH = 2.9 V;

VDD = 3.3 V;

on pin CLK, TS

Table 67. Characteristics...continued

PCF85263A

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Product data sheet

Rev. 5 — 1 February 2021

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PCF85263ATL/A Datasheet(PDF) 65 Page - NXP Semiconductors

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