EMC1072-1-ACZL-TR SMSC, EMC1072-1-ACZL-TR Datasheet - Page 30

• Manufacturer Part Number: EMC1072-1-ACZL-TR
• Description: Board Mount Temperature Sensors SMBus Temp Sensor Selectable Address
• Manufacturer: SMSC

Specifications of EMC1072-1-ACZL-TR

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

Revision 1.39 (10-11-10)
6.12
ADDR.
27h
SETTING
08h
09h
0Ah
0Bh
2
0
0
0
1
R/W
R/W
Bits 6-4 - CTHRM[2:0] - Determines the number of consecutive measurements that must exceed the
corresponding THERM Limit before the THERM pin is asserted. All temperature channels use this
value to set the respective counters. The consecutive THERM counter is incremented whenever any
measurement exceed the corresponding THERM Limit.
If the temperature drops below the THERM limit, then the counter is reset. If a number of consecutive
measurements above the THERM limit occurs, then the THERM pin is asserted low.
Once the THERM pin has been asserted, the consecutive therm counter will not reset until the
corresponding temperature drops below the THERM Limit minus the THERM Hysteresis value.
The bits are decoded as shown in
conversions.
Bits 3-1 - CALRT[2:0] - Determine the number of consecutive measurements that must have an out of
limit condition or diode fault before the ALERT pin is asserted. All temperature channels use this value
to set the respective counters. The bits are decoded as shown in
consecutive out of limit conversion.
These registers store the ideality factors that are applied to the external diodes.
each setting and the corresponding ideality factor.
External Diode Ideality Factor Registers
REGISTER
FACTOR
External
Diode 1
0.9949
0.9962
0.9975
0.9988
Ideality
Factor
1
0
0
1
1
Table 6.15 Ideality Factor Look-Up Table (Diode Model)
Table 6.13 Consecutive Alert / THERM Settings
Table 6.14 Ideality Configuration Registers
B7
-
0
0
1
1
1
SETTING
1Ah
1Bh
18h
19h
B6
DATASHEET
-
Table
B5
30
6.13. The default setting is 4 consecutive out of limit
NUMBER OF CONSECUTIVE OUT OF LIMIT
FACTOR
1.0159
1.0172
1.0185
1.0200
B4
IDEALITY[5:0]
(default for CTHRM[2:0])
1°C Temperature Sensor with Selectable Address
B3
(default for CALRT[2:0])
MEASUREMENTS
B2
Table
SETTING
1
2
3
4
2Ah
2Bh
28h
29h
6.13. The default setting is 1
B1
B0
Table 6.15
SMSC EMC1072
FACTOR
1.0371
1.0384
1.0397
1.0410
DEFAULT
Datasheet
12h
defines