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MAX6654 Datasheet(PDF) 3 Page - Maxim Integrated Products

Part No. MAX6654
Description  1°C Accurate Remote/Local Temperature Sensor with SMBus Serial Interface
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX6654 Datasheet(HTML) 3 Page - Maxim Integrated Products

 
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1°C Accurate Remote/Local Temperature
Sensor with SMBus Serial Interface
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +3V to +5.5V, TA = -55°C to +125°C, unless otherwise noted. Typical values are at VCC = +3.3V and TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Logic Input Low Voltage
VIL
VCC = +3.0V to +5.5V
+0.8
VCC = +3.0V
+2.2
V
Logic Input High Voltage
VIH
VCC = +5.5V
+2.6
V
Input Leakage Current
ILEAK
VIN = GND or VCC
±2µA
VOL = +0.6V
+6
Output Low Sink Current
IOL
VOL = +0.4V
+1
mA
Input Capacitance
Cin
+5
pF
Output High Leakage Current
VOH = +5.5V
+1
µA
Serial Clock Frequency
fSCL
(Note 4)
0
+100
kHz
Bus Free Time Between STOP
and START Conditions
tBUF
+4.7
µs
START Condition Setup Time
+4.7
µs
Repeat START Condition Setup
Time
tSU:STA
90% to 90%
+50
µs
START Condition Hold Time
tHD:STA
10% of SMBDATA to 90% of SMBCLK
+4
µs
STOP Condition Setup Time
tSU:STO
90% of SMBCLK to 10% of SMBDATA662
+4
µs
Clock Low Period
tLOW
10% to 10%
+4.7
µs
Clock High Period
tHIGH
90% to 90%
+4
µs
Data Setup Time
tSU: DAT
90% of SMBDATA to 10% of SMBCLK
+250
ns
Data Hold Time
tHD: DAT
(Note 5)
0
µs
Receive SCL/SDA Rise Time
tR
+1
µs
Receive SCL/SDA Fall Time
tF
+300
ns
SMBus Timeout
tTIMEOUT
SMBDATA and SMBCLK time low for reset
of serial interface
+25
+40
ms
Note 1: +25
°C ≤ TA ≤ +85°C.
Note 2: If both the MAX6654 and the remote junction are below TA = -20
°C, then VCC > 3.15V.
Note 3: The conversion time doubles for the extended resolution mode. This causes the average operating current to approximately
double.
Note 4: The serial interface resets when SMBCLK is low for more than tTIMEOUT.
Note 5: Note that a transition must internally provide at least a hold time to bridge the undefined region (300ns max) of SMBCLK’s
falling edge.


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