TCN75_13 datasheet(4/20 Pages) MICROCHIP

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TCN75

DS21490D-page 4

 2001-2012 Microchip Technology Inc.

TIMING DIAGRAM

TCN75 ELECTRICAL SPECIFICATIONS (CONTINUED)

Electrical Characteristics: 2.7V

 V

DD  5.5V; -55°C  (TA = TJ)  125°C, CL = 80 pF, unless otherwise noted.

Symbol

Parameter

Min

Typ

Max

Unit

Test Conditions

Serial Port Timing

fSC

Serial Port Frequency

100

400

kHz

tLOW

Low Clock Period

1250

—

nsec

tHIGH

High Clock Period

1250

—

nsec

SCL and SDA Rise Time

—

250

nsec

SCL and SDA Fall Time

—

250

nsec

tSU(START)

Start Condition Setup Time (for

repeated Start Condition)

1250

—

nsec

tSC

SCL Clock Period

2.5

—

sec

tH(START)

Start Condition Hold Time

100

—

nsec

tDSU

Data in Setup Time to SCL High

100

—

nsec

tDH

Data in Hold Time after SCL Low

—

nsec

tSU(STOP)

Stop Condition Setup Time

100

—

nsec

tIDLE

Bus Free Time Prior to New Transition

1250

—

nsec

Note

Output current should be minimized for best temperature accuracy. Power dissipation within the TCN75 will cause self-heating and

temperature drift. At maximum rated output current and saturation voltage, 4 mA and 0.8V, respectively, the error amounts to 0.544°C for

the SOIC.

All part types of the TCN75 will operate properly over the wider power supply range of 2.7V to 5.5V. Each part type is tested and specified

for rated accuracy at its nominal supply voltage. As VDD varies from the nominal value, accuracy will degrade 1°C/V of VDD change.

Human body model, 100 pF discharged through a 1.5k resistor.

SCL

tSC

tDSU

tSU (Stop)

tH (Start)

tDH

SDA

Data In

SDA

Data Out

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