MAX31726 查看數據表（PDF） - Maxim Integrated

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MAX31726

±0.5°C Local Temperature Sensors

Maxim Integrated 

MAX31725/MAX31726

±0.5°C Local Temperature Sensors

I2C AC ELECTRICAL CHARACTERISTICS (continued)

(VDD = 2.5V to 3.7V, TA = -55NC to +150NC, unless otherwise noted. Typical values are VDD = 3.3V, TA = +25NC.) (Notes 3, 6) (Figure 1)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Pulse Width of Suppressed Spike

SDA Time Low for Reset of Serial

Interface

tSP

tTIMEOUT

(Note 10)

(Note 7)

0

50

ns

45

50

55

ms

Note 3: Limits are 100% production tested at TA = +25NC and/or TA = +85NC. Limits over the operating temperature range and

relevant supply voltage range are guaranteed by design and characterization. Typical values are not guaranteed.

Note 4: All voltages are referenced to ground. Currents entering the IC are specified positive.

Note 5: These limits represent a 3-sigma distribution.

Note 6: All timing specifications are guaranteed by design.

Note 7: Holding the SDA line low for a time greater than tTIMEOUT causes the devices to reset SDA to the idle state of the serial

bus communication (SDA released).

Note 8: A master device must provide a hold time of at least 300ns for the SDA signal to bridge the undefined region of SCL’s fall-

ing edge.

Note 9: CB = total capacitance of one bus line in pF. Tested with CB = 400pF.

Note 10: Input filters on SDA and SCL suppress noise spikes less than 50ns.

SDA

tBUF

tF

tLOW

SCL

tHD:STA

STOP START

tR

tHD:DAT

NOTE: TIMING IS REFERENCED TO VIL(MAX) AND VIH(MIN).

tHIGH

tSU:DAT

Figure 1. I2C Timing Diagram

tHD:STA

tSU:STA

REPEATED

START

tSP

tSU:STO

Maxim Integrated

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