TC1321 datasheet(4/16 Pages) MICROCHIP

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TC1321

DS21387B-page 4

Serial Port AC Timing

fSMB

SMBus Clock Frequency

—

100

kHz

tIDLE

BusFreeTimePrior to New Transition

4.7

—

µsec

tH(START)

START Condition Hold Time

4.0

—

µsec

tSU(START)

START Condition Setup Time

4.7

—

µsec

90% SCLto10% SDA

(for Repeated START

Condition)

tSU(STOP)

STOP Condition Setup Time

4.0

—

µsec

tH-DATA

Data In Hold Time

100

—

nsec

tSU-DATA

Data In Setup Time

100

—

nsec

tLOW

Low Clock Period

4.7

—

µsec

10% to 10%

tHIGH

High Clock Period

—

µsec

90% to 90%

SMBus Fall Time

—

300

nsec

90% to 10%

SMBus Rise Time

—

1000

nsec

10% to 90%

tPOR

Power-on Reset Delay

—

500

—

µsec

VDD ≥ VPOR (Rising Edge)

TC1321 ELECTRICAL SPECIFICATIONS (CONTINUED)

Electrical Characteristics: VDD = 2.7V to 5.5V, -40°C ≤ TA ≤ +85°C, VREF = 1.2 unless otherwise noted.

Symbol

Parameter

Min

Typ

Max

Unit

Test Conditions

Note

SDA and SCL must be connected to VDD or GND.

Measured at VOUT ≥ 50mV referred to GND to avoid output buffer clipping.

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