RV-8564 datasheet(31/40 Pages) MICROCRYSTAL

31 / 40 page

Micro Crystal

Real Time Clock / Calendar Module

RV-8564

31/40

15.I

2C BUS TIMING CHARACTERISTICS

PARAMETER

SYMBOL

MIN.

TYP.

MAX.

UNIT

SCL clock frequency

fSCL

400

kHz

Hold time (repeated) START condition

tHD;STA

0.6

µs

Setup time for repeated START condition

tSU;STA

0.6

µs

LOW period of SCL clock

tLOW

1.3

µs

HIGH period of SCL clock

tHIGH

0.6

µs

Bus free time between STOP and START condition

tBUF

1.3

µs

Rise time of both SDA and SCL signals

0.3

µs

Fall time of both SDA and SCL signals

0.3

µs

Capacitive load for each bus line

400

Data setup time

tSU;DAT

100

Data hold time

tHD;DAT

Setup time for STOP condition

tSU;STO

0.6

µs

Spike pulse width

tw(spike)

1) All timing values are valid within the operating supply voltage at ambient temperature and referenced to V

IL and VIH with an input voltage swing

of VSS to VDD.

15.1.TIMING CHART

Note:

The I

2C BUS access time between a START and a START condition or between a START and a STOP condition

to this device must be less than one second.

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