EMC1412-1-ACZL-TR Standard Microsystems (SMSC), EMC1412-1-ACZL-TR Datasheet - Page 31

• Manufacturer Part Number: EMC1412-1-ACZL-TR
• Description: SMIEMC1412-1-ACZL-TR TEMP SENSOR
• Manufacturer: Standard Microsystems (SMSC)

Specifications of EMC1412-1-ACZL-TR

• Temperature Sensor Function: Temp Sensor
• Interface Type: Serial (2-Wire)
• Output Type: Analog
• Package Type: MSOP
• Operating Temperature (min): -40C
• Operating Temperature (max): 125C
• Operating Temperature Classification: Automotive
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• Lead Free Status / Rohs Status: Compliant

Multiple Channel 1°C Temperature Sensor with Beta Compensation
Datasheet
SMSC EMC1412
7.8
7.9
7.10
ADDR.
ADDR.
1Fh
ADDR.
0Fh
19h
20h
21h
R/W
R/W
R/W
R/W
R/W
R/W
R/W
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 effect.
The THERM Limit Registers are used to determine whether a critical thermal event has occurred. If
the measured temperature exceeds the THERM Limit, 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.
The Channel Mask Register controls individual channel masking. When a channel is masked, the
ALERT pin will not be asserted when the masked channel reads a diode fault or out of limit error. The
channel mask does not mask the THERM pin.
Bit 1 - EMASK - Masks the ALERT pin from asserting when the External Diode channel is out of limit
or reports a diode fault.
One Shot Register
Therm Limit Registers
Channel Mask Register
W
‘0’ (default) - The External Diode channel will cause the ALERT pin to be asserted if it is out of
limit or reports a diode fault.
REGISTER
Channel
Mask
Diode THERM
REGISTER
Internal Diode
THERM Limit
One Shot
REGISTER
Hysteresis
External
THERM
Limit
B7
-
Writing to this register initiates a single conversion cycle. Data
B7
Table 7.11 Channel Mask Register
Table 7.10 Therm Limit Registers
128
128
128
B7
Table 7.9 One Shot Register
B6
-
B6
DATASHEET
B6
64
64
64
is not stored and always reads 00h
B5
-
B5
31
B5
32
32
32
B4
-
B4
B4
16
16
16
B3
B3
-
B3
8
8
8
B2
B2
-
B2
4
4
4
MASK
B1
B1
B1
E
2
2
2
Revision 1.38 (10-25-10)
B0
MASK
B0
1
1
1
INT
B0
DEFAULT
DEFAULT
(85°C)
(85°C)
(10°C)
DEFAULT
00h
0Ah
55h
55h
00h