EMC1422-1-ACZL-TR SMSC, EMC1422-1-ACZL-TR Datasheet - Page 29

• Manufacturer Part Number: EMC1422-1-ACZL-TR
• Description: Board Mount Temperature Sensors Dual Temp Snsr
• Manufacturer: SMSC

Specifications of EMC1422-1-ACZL-TR

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

1°C Temperature Sensor with Hardware Thermal Shutdown
Datasheet
SMSC EMC1422
6.7
6.8
ADDR.
ADDR.
ADDR
0Dh
0Eh
19h
20h
07h
13h
08h
14h
11h
12h
R/W
R/W
R/W
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.
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
Therm Limit Registers
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Diode THERM
Internal Diode
THERM Limit
REGISTER
External
Diode High
Diode High
Diode Low
Diode Low
REGISTER
Limit High
Limit High
Limit Low
Limit Low
External
External
External
External
Limit
Byte
Byte
Byte
Byte
REGISTER
Scratchpad
Scratchpad
Table 6.7 Temperature Limit Registers (continued)
128
128
Table 6.9 Therm Limit Registers
B7
Table 6.8 Scratchpad Register
128
128
0.5
0.5
B7
B7
7
7
DATASHEET
B6
64
64
0.25
0.25
B6
64
64
B6
6
6
29
B5
32
32
0.125
0.125
B5
32
32
B5
5
5
B4
16
16
B4
16
16
-
-
B4
4
4
B3
8
8
B3
B3
3
3
8
8
-
-
B2
B2
4
4
2
2
B2
4
4
-
-
B1
B1
2
2
1
1
B1
2
2
-
-
Revision 1.36 (07-02-09)
B0
B0
1
1
0
0
B0
1
1
-
-
DEFAULT
DEFAULT
DEFAULT
(85°C)
(85°C)
(85°C)
00h
00h
55h
55h
(0°C)
55h
00h
00h
00h