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Electrical characteristics (continued) – Rainbow Electronics MAX6696 User Manual

Page 3

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MAX6695/MAX6696

Dual Remote/Local Temperature Sensors with

SMBus Serial Interface

_______________________________________________________________________________________

3

ELECTRICAL CHARACTERISTICS (continued)

(V

CC

= +3.0V to +3.6V, T

A

= 0°C to +125°C, unless otherwise noted. Typical values are at V

CC

= +3.3V and T

A

= +25°C)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

INPUT PIN, RESET,

STBY

(MAX6696)

Logic Input Low Voltage

V

IL

0.8

V

Logic Input High Voltage

V

IH

2.1

V

Input Leakage Current

I

LEAK

-1

+1

µA

SMBus INTERFACE (SMBCLK, SMBDATA,

STBY

)

Logic Input Low Voltage

V

IL

0.8

V

Logic Input High Voltage

V

IH

2.1

V

Input Leakage Current

I

LEAK

V

IN

= GND or V

CC

±1

µA

Output Low Sink Current

I

OL

V

OL

= 0.6V

6

mA

Input Capacitance

C

IN

5

pF

SMBus-COMPATIBLE TIMING

(Figures 4 and 5) (Note 2)

Serial Clock Frequency

f

SCL

10

100

kHz

Bus Free Time Between STOP
and START Condition

t

BUF

4.7

µs

Repeat START Condition Setup
Time

t

SU:STA

90% of SMBCLK to 90% of SMBDATA

4.7

µs

START Condition Hold Time

t

HD:STA

10% of SMBDATA to 90% of SMBCLK

4

µs

STOP Condition Setup Time

t

SU:STO

90% of SMBCLK to 90% of SMBDATA

4

µs

Clock Low Period

t

LOW

10% to 10%

4

µs

Clock High Period

t

HIGH

90% to 90%

4.7

µs

Data Setup Time

t

SU:DAT

250

µs

Data Hold Time

t

HD:DAT

300

µs

SMB Rise Time

t

R

1

µs

SMB Fall Time

t

F

300

ns

SMBus Timeout

SMBDATA low period for interface reset

20

30

40

ms

Note 1:

Based on diode ideality factor of 1.008.

Note 2:

Specifications are guaranteed by design, not production tested.