EMC1402-1-ACZL-TR SMSC, EMC1402-1-ACZL-TR Datasheet - Page 25

• Manufacturer Part Number: EMC1402-1-ACZL-TR
• Description: IC TEMP SNSR DUAL 3.3V 8MSOP
• Manufacturer: SMSC

Specifications of EMC1402-1-ACZL-TR

• Function: Temp Monitoring System (Sensor)
• Topology: ADC (Sigma Delta), Comparator, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 125°C, External Sensor
• Output Type: SMBus™
• Output Alarm: No
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• For Use With: EVB-EMC1402 - EVAL BOARD FOR EMC1402
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1067-2

ADDR
02h
1°C Temperature Sensor with Beta Compensation
Datasheet
SMSC EMC1402
6.1
6.2
6.3
REGISTER
ADDRESS
ADDR
00h
29h
01h
10h
R/W
R-C
FDh
FEh
FFh
REGISTER
R/W
When any temperature channel high byte register is read, the corresponding low byte is copied into
an internal ‘shadow’ register. The user is free to read the low byte at any time and be guaranteed that
it will correspond to the previously read high byte. Regardless if the low byte is read or not, reading
from the same high byte register again will automatically refresh this stored low byte data.
As shown in
the integer value and the low byte representing the fractional value left justified to occupy the MSBits.
The Status Register reports the operating status of the Internal Diode and External Diode 1 channels.
When any of the bits are set (excluding the BUSY bit) either the ALERT or THERM pin is being
asserted.
The ALERT and THERM pins are controlled by the respective consecutive alert counters (see
Section
Data Read Interlock
Temperature Data Registers
Status Register
Status
R
R
R
R
R/W
R
R
R
6.11) and will not be asserted until the programmed consecutive alert count has been reached.
External Diode
External Diode
Internal Diode
Internal Diode
REGISTER
High Byte
High Byte
Low Byte
Low Byte
BUSY
Table
Table 6.1 Register Set in Hexadecimal Order (continued)
B7
REGISTER NAME
Product ID
6.2, all temperatures are stored as an 11-bit value with the high byte representing
SMSC ID
Revision
IHIGH
Table 6.2 Temperature Data Registers
B6
128
128
B7
0.5
0.5
Table 6.3 Status Register
ILOW
DATASHEET
B5
0.25
0.25
B6
64
64
Stores a fixed value that identifies
represents the revision number
25
Stores a fixed value that
Stores a fixed value that
EHIGH
0.125
0.125
B5
32
32
B4
represents SMSC
each product
FUNCTION
B4
16
16
ELOW
-
-
B3
B3
8
8
-
-
FAULT
B2
B2
4
4
-
-
ETHERM
B1
DEFAULT
Table 6.21
2
2
-
-
B1
VALUE
5Dh
01h
Revision 1.36 (07-02-09)
B0
1
1
-
-
ITHERM
DEFAULT
B0
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PAGE
00h
00h
00h
00h
DEFAULT
00h