EMC1074-A-AIZL-TR SMSC, EMC1074-A-AIZL-TR Datasheet - Page 32

• Manufacturer Part Number: EMC1074-A-AIZL-TR
• Description: Board Mount Temperature Sensors SMBus Temp Sensor Selectable Address
• Manufacturer: SMSC

Specifications of EMC1074-A-AIZL-TR

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

Revision 1.39 (10-11-10)
6.7
ADDR.
ADDR
2Ch
2Dh
2Eh
2Fh
18h
11h
12h
The device contains both high and low limits for all temperature channels. If the measured temperature
exceeds the high limit, then the corresponding status bit is set and the ALERT pin is asserted.
Likewise, if the measured temperature is less than or equal to the low limit, the corresponding status
bit is set and the ALERT pin is asserted.
The data format for the limits must match the selected data format for the temperature so that if the
extended temperature range is used, the limits must be programmed in the extended data format.
The limit registers with multiple addresses are fully accessible at either address.
When the device is in standby mode, updating the limit registers will have no affect until the next
conversion cycle occurs. This can be initiated via a write to the One Shot Register or by clearing the
RUN / STOP bit in the Configuration Register (see
The Scratchpad Registers are Read Write registers that are used for place holders to be software
compatible with legacy programs. Reading from the registers will return what is written to them.
Scratchpad Registers
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Diode 3 High
Diode 3 High
Diode 2 Low
Diode 3 Low
Diode 3 Low
REGISTER
Limit High
Limit High
Limit Low
Limit Low
Limit Low
External
External
External
External
External
Byte
Byte
Byte
Byte
Byte
REGISTER
Scratchpad
Scratchpad
Table 6.7 Temperature Limit Registers (continued)
Table 6.8 Scratchpad Register
128
128
0.5
0.5
0.5
B7
B7
7
7
DATASHEET
0.25
0.25
0.25
B6
64
64
B6
6
6
Multiple Channel 1°C Temperature Sensors with Selectable Address
32
0.125
0.125
0.125
B5
32
32
B5
5
5
Section
B4
16
16
-
-
-
B4
4
4
6.4).
B3
B3
3
3
8
8
-
-
-
B2
2
2
B2
4
4
-
-
-
B1
1
1
SMSC EMC1073 / EMC1074
B1
2
2
-
-
-
B0
0
0
B0
1
1
-
-
-
DEFAULT
DEFAULT
Datasheet
(85°C)
00h
00h
(0°C)
00h
55h
00h
00h
00h