MAX31723 查看數據表（PDF） - Maxim Integrated
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MAX31723 Datasheet PDF : 15 Pages
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Digital Thermometers and Thermostats
with SPI/3-Wire Interface
AC ELECTRICAL CHARACTERISTICS: 3-WIRE INTERFACE
(VDD = 1.7V to 3.7V, TJ = -55NC to +125NC, unless otherwise noted.) (Figures 1, 2)
PARAMETER
Data to SCLK Setup
SCLK to Data Hold
SCLK to Data Valid
SCLK Low Time
SCLK High Time
SCLK Frequency
SCLK Rise and Fall
CE to SCLK Setup
SCLK to CE Hold
CE Inactive Time
CE to Output High-Z
SCLK to Output High-Z
SYMBOL
tDC
tCDH
tCDD
tCL
tCH
tCLK
tR, tF
tCC
tCCH
tCWH
tCDZ
tCCZ
CONDITIONS
(Notes 5, 6)
(Notes 5, 6)
(Notes 5, 6, 7)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
(Notes 5, 6)
(Notes 5, 6)
MIN TYP MAX UNITS
35
ns
35
ns
80
ns
100
ns
100
ns
DC
5.0
MHz
200
ns
400
ns
100
ns
400
ns
40
ns
40
ns
AC ELECTRICAL CHARACTERISTICS: SPI INTERFACE
(VDD = 1.7V to 3.7V, TJ = -55NC to +125NC, unless otherwise noted.) (Figures 3, 4)
PARAMETER
Data to SCLK Setup
SCLK to Data Hold
SCLK to Data Valid
SCLK Low Time
SCLK High Time
SCLK Frequency
SCLK Rise and Fall
CE to SCLK Setup
SCLK to CE Hold
CE Inactive Time
CE to Output High-Z
SYMBOL
tDC
tCDH
tCDD
tCL
tCH
tCLK
tR, tF
tCC
tCCH
tCWH
tCDZ
CONDITIONS
(Notes 5, 6)
(Notes 5, 6)
(Notes 5, 6, 7)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
(Notes 5, 6)
MIN TYP MAX UNITS
35
ns
35
ns
80
ns
100
ns
100
ns
DC
5.0
MHz
200
ns
400
ns
100
ns
400
ns
40
ns
AC ELECTRICAL CHARACTERISTICS: EEPROM
(VDD = 1.7V to 3.7V, TJ = -55NC to +125NC, unless otherwise noted.)
PARAMETER
EEPROM Write Cycle Time
EEPROM Write Endurance
SYMBOL
tWR
NEEWR
CONDITIONS
-40NC to +85NC (Note 8)
-40NC P TA P +85NC (Note 8)
TA = +25NC (Note 8)
MIN TYP
20,000
80,000
MAX UNITS
15
ms
Cycles
Note 1: All voltages are referenced to ground. Currents entering the IC are specified positive, and currents exiting the IC are negative.
Note 2: Logic 0 voltages are specified at a sink current of 3mA.
Note 3: Logic 1 voltages are specified at a source current of 1mA.
Note 4: ICC specified with SCLK = VDD and CE = GND.
Note 5: Measured at VIH = 0.7V x VDD or VIL = 0.3 x VDD and 10ms maximum rise and fall times.
Note 6: Measured with 50pF load.
Note 7: Measured at VOH = 0.7 x VDD or VOL = 0.3 x VDD. Measured from the 50% point of SCLK to the VOH minimum of SDO.
Note 8: VDD must be > 2.0V during EEPROM write cycles.
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