MAX6636 Datasheet, PDF (3/18 Pages) Maxim Integrated Products – 7-Channel Precision Temperature Monitor

7-Channel Precision Temperature Monitor
ELECTRICAL CHARACTERISTICS (continued)
(V_CC = +3.0V to +5.5V, V_STBY = V_CC, T_A = -40°C to +125°C, unless otherwise noted. Typical values are at V_CC = +3.3V and
T_A = +25°C.) (Note 1)
PARAMETER
SYMBOL
SMBus INTERFACE (SCL, SDA), STBY
Logic-Input Low Voltage
V_IL
Logic-Input High Voltage
V_IH
Input Leakage Current
V_CC = 3.0V
V_CC = 5.0V
CONDITIONS
MIN TYP MAX UNITS
0.8
V
2.2
V
2.4
-1
+1
µA
Output Low Voltage
V_OL
I_SINK = 6mA
Input Capacitance
C_IN
SMBus-COMPATIBLE TIMING (Figures 3 and 4) (Note 2)
Serial-Clock Frequency
f_SCL
(Note 3)
Bus Free Time Between STOP
and START Condition
t_BUF
f_SCL = 100kHz
f_SCL = 400kHz
START Condition Setup Time
f_SCL = 100kHz
f_SCL = 400kHz
Repeat START Condition Setup
Time
t_SU:STA
90% of SCL to 90% of SDA,
f_SCL = 100kHz
90% of SCL to 90% of SDA,
f_SCL = 400kHz
START Condition Hold Time
t_HD:STA 10% of SDA to 90% of SCL
STOP Condition Setup Time
t_SU:STO
90% of SCL to 90% of SDA,
f_SCL = 100kHz
90% of SCL to 90% of SDA,
f_SCL = 400kHz
Clock Low Period
t_LOW
10% to 10%, f_SCL = 100kHz
10% to 10%, f_SCL = 400kHz
Clock High Period
t_HIGH 90% to 90%
Data Hold Time
t_HD:DAT
f_SCL = 100kHz
f_SCL = 400kHz (Note 4)
Data Setup Time
t_SU:DAT
f_SCL = 100kHz
f_SCL = 400kHz
Receive SCL/SDA Rise Time
t_R
f_SCL = 100kHz
f_SCL = 400kHz
Receive SCL/SDA Fall Time
t_F
Pulse Width of Spike Suppressed
t_SP
SMBus Timeout
t_TIMEOUT SDA low period for interface reset
0.3
V
5
pF
400
kHz
4.7
µs
1.6
4.7
µs
0.6
0.6
µs
0.6
0.6
µs
4
µs
0.6
1.3
µs
1.3
0.6
µs
300
ns
900
250
ns
100
1
µs
0.3
300
ns
0
50
ns
25
37
45
ms
Note 1: All parameters are tested at T_A = +85°C. Specifications over temperature are guaranteed by design.
Note 2: Timing specifications are guaranteed by design.
Note 3: The serial interface resets when SCL is low for more than t_TIMEOUT.
Note 4: A transition must internally provide at least a hold time to bridge the undefined region (300ns max) of SCL’s falling edge.
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