±1°C Fail-Safe Remote/Local Temperature

Sensors with SMBus Interface

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3

ELECTRICAL CHARACTERISTICS (continued)

Note 3: Conversions done in extended mode. For legacy mode, current is approximately half.

Note 4: Timing specifications guaranteed by design.

Note 6: A transition must internally provide at least a hold time to bridge the undefined region (300ns max) of SMBCLK’s falling edge.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

CRIT0, CRIT1, ADD0, ADD1, RESET, INT_SEL, SENS_SEL

Logic Input Low Voltage

0.8

V

Logic Input High Voltage

2.4

V

Input Leakage Current

-1

+1

µA

(

ALERT, OVERT)

Output Low Sink Current

1

mA

Output High Leakage Current

1

µA

SMBus INTERFACE (SMBCLK, SMBDATA,

STBY)

Logic Input Low Voltage

0.8

V

2.2

Logic Input High Voltage

2.4

V

Input Leakage Current

±2

µA

Output Low Sink Current

6

mA

Input Capacitance

5pF

SMBus-COMPATIBLE TIMING (Note 5)

Serial Clock Frequency (Note 5)

100

kHz

Bus Free Time Between STOP

and START Condition

4.7

µs

START Condition Setup Time

4.7

µs

Repeat START Condition Setup

Time

90% to 90%

50

ns

START Condition Hold Time

10% of SMBDATA to 90% of SMBCLK

4

µs

STOP Condition Setup Time

90% of SMDCLK to 90% of SMBDATA

4

µs

Clock Low Period

10% to 10%

4.7

µs

Clock High Period

90% to 90%

4

µs

Data Setup Time (Note 6)

250

ns

Receive SCL/SDA Rise Time

1µs

Receive SCL/SDA Fall Time

300

ns

Pulse Width of Spike Suppressed

050

ns

SMBus Timeout (Note 5)

SMBDATA low period for interface reset

25

37

45

ms