EMC1403-2-AIA-TR SMSC, EMC1403-2-AIA-TR Datasheet - Page 34

• Manufacturer Part Number: EMC1403-2-AIA-TR
• Description: Board Mount Temperature Sensors TEMP SENSOR W/ BETA COMP
• Manufacturer: SMSC

Specifications of EMC1403-2-AIA-TR

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

Revision 1.37 (01-06-10)
6.8
6.9
ADDR.
ADDR.
0Fh
1Ah
19h
20h
21h
30h
R/W
R/W
R/W
R/W
R/W
R/W
R/W
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.
The One Shot Register is used to initiate a one shot command. Writing to the one shot register, when
the device is in standby mode and BUSY bit (in Status Register) is ‘0’, will immediately cause the ADC
to update all temperature measurements. Writing to the One Shot Register while the device is in active
mode will have no affect.
The THERM Limit Registers are used to determine whether a critical thermal event has occurred. If
the measured temperature exceeds the THERM Limit, then the THERM pin is asserted. The limit
setting must match the chosen data format of the temperature reading registers.
Unlike the ALERT pin, the THERM pin cannot be masked. Additionally, the THERM pin will be released
once the temperature drops below the corresponding threshold minus the THERM Hysteresis.
One Shot Register
Therm Limit Registers
W
REGISTER
Internal Diode
THERM Limit
THERM Limit
THERM Limit
THERM Limit
One Shot
REGISTER
Hysteresis
External
External
External
Diode 1
Diode 2
THERM
Diode 3
Writing to this register initiates a single conversion cycle. Data
B7
Table 6.10 Therm Limit Registers
128
128
128
128
128
B7
Table 6.9 One Shot Register
B6
DATASHEET
B6
64
64
64
64
64
is not stored and always reads 00h
B5
34
B5
32
32
32
32
32
B4
B4
16
16
16
16
16
B3
1°C Temperature Sensor with Beta Compensation
B3
8
8
8
8
8
B2
B2
4
4
4
4
4
B1
B1
2
2
2
2
2
SMSC EMC1403 / EMC1404
B0
B0
1
1
1
1
1
DEFAULT
DEFAULT
(85°C)
(85°C)
(85°C)
(10°C)
(85°C)
Datasheet
00h
0Ah
55h
55h
55h
55h