MCP9804-ESLASHMS datasheet(5/54 Pages) MICROCHIP

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DS22203A-page 5

MCP9804

TIMING DIAGRAM

SENSOR SERIAL INTERFACE TIMING SPECIFICATIONS

Electrical Specifications: Unless otherwise indicated, V

DD = 2.7V to 5.5V, TA = -40°C to +125°C, GND = Ground,

and CL = 80 pF (Note).

Parameters

Sym

Min

Max

Units

Conditions

2-Wire SMBus/Standard Mode I2C™ Compatible Interface (Note)

Serial Port Clock Frequency

fSC

—

100

kHz

Low Clock

tLOW

4.7

—

µs

High Clock

tHIGH

4.0

—

µs

Rise Time

—

1000

Fall Time

——

300

Data Setup Before SCL High

tSU-DATA

250

—

Data Hold After SCL Low

tHD-DATA

300

—

Start Condition Setup Time

tSU-START

4.7

—

µs

Start Condition Hold Time

tHD-START

4.0

—

µs

Stop Condition Setup Time

tSU-STOP

4.0

—

µs

Bus Free

tB-FREE

4.7

—

µs

Time Out

tOUT

Note:

The serial interface specification min./max. limits are specified by characterization (not production tested).

tSU-START

tH-START

tSU-DATA

tSU-STOP

tB-FREE

SCL

SDA

tH-DATA

tHIGH

tLOW

tOUT

tR, tF

START Condition

Data Transmission

STOP Condition

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