EMC2101-ACZT-TR SMSC, EMC2101-ACZT-TR Datasheet - Page 36

• Manufacturer Part Number: EMC2101-ACZT-TR
• Description: Industrial Temperature Sensors Sngl Fan Contrllr
• Manufacturer: SMSC

Specifications of EMC2101-ACZT-TR

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Revision 2.54 (06-16-09)
6.7
07h and 0Dh
6.8
05h and 0Bh
08h and 0Eh
ADDR.
0Ch
ADDR
13h
14h
19h
21h
R/W
R/W
The
limits are checked after every temperature conversion.
If the measured temperature for the internal diode exceeds the Internal Temperature limit, then the
INT_HIGH bit is set in the Status Register. It will remain set until the internal temperature drops below
the high limit.
If the measured temperature for the External Diode exceeds the 11-bit External Diode High Limit, or
drops below the 11-bit External Diode Low Limit, then the appropriate status bit will be set. The status
bit will remain set until the temperature is no longer violating the respective limits.
If the External Diode exceeds the TCRIT Temp Limit (even if it does not exceed the External Diode
Temperature Limit), the TCRIT bit will be set in the Status Register.
The TCRIT bit will remain set in the Status Register until the External Diode Temperature drops below
a lower threshold given by equation [2].
See
Temperature Limit Registers
External Temperature Force Register
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
EMC2101
Section 6.3
Temperature Force
REGISTER
High Limit MSB
Low Limit MSB
High Limit LSB
External Diode
External Diode
External Diode
External Diode
External
Low Limit LSB
Internal Temp
TCRIT Temp
REGISTER
Hysteresis
has two 8-bit limit registers, two 11-bit limit registers, and one hysteresis register. The
and
TCRIT
Limit
Limit
Section 6.5
Table 6.8 External Diode Force Register
Table 6.7 Temperature Data Registers
TEMP
Sign
B7
0.5
0.5
=
B7
-
-
-
-
-
for ALERT / TACH pin functionality.
(
DATASHEET
T
CRIT
B6
64
0.25
0.25
B6
64
64
64
64
64
–
36
T
CRITHYS
B5
32
SMBus Fan Control with 1°C Accurate Temperature Monitoring
0.125
0.125
B5
32
32
32
32
32
B4
16
)
B4
16
16
16
16
16
-
-
B3
8
B3
8
8
8
8
8
-
-
B2
4
B2
4
4
4
4
4
-
-
B1
2
B1
2
2
2
2
2
-
-
B0
1
B0
1
1
1
1
1
-
-
SMSC EMC2101
[2]
DEFAULT
46h (70°C)
46h (70°C)
55h (85°C)
0Ah (10°C)
DEFAULT
00h (0°C)
Datasheet
00h
00h
00h