Rainbow-electronics MAX6696 Manual do Utilizador descarregar pdf (Página 3)

MAX6695/MAX6696

Dual Remote/Local Temperature Sensors with

SMBus Serial Interface

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

= +3.0V to +3.6V, T

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

= +3.3V and T

= +25°C)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

INPUT PIN, RESET, STBY (MAX6696)

Logic Input Low Voltage V

0.8 V

Logic Input High Voltage V

2.1 V

Input Leakage Current I

LEAK

-1 +1 µA

SMBus INTERFACE (SMBCLK, SMBDATA, STBY)

Logic Input Low Voltage V

0.8 V

Logic Input High Voltage V

2.1 V

Input Leakage Current I

LEAK

= GND or V

±1 µA

Output Low Sink Current I

= 0.6V 6 mA

Input Capacitance C

5pF

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

BUF

4.7 µs

Repeat START Condition Setup

Time

SU:STA

90% of SMBCLK to 90% of SMBDATA 4.7 µs

START Condition Hold Time

HD:STA

10% of SMBDATA to 90% of SMBCLK 4 µs

STOP Condition Setup Time

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

SU:DAT

250

µs

Data Hold Time

HD:DAT

300

µs

SMB Rise Time t

1µs

SMB Fall Time t

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.

1 2 3 4 5 6 7 8 ... 19 20

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