OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

EMC1182-1-AIA-TR

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42P43-P45P46-P48
Dual Channel 1°C Temperature Sensor with Beta Compensation and 1.8V SMBus Communications
Datasheet
SMSC EMC1182 25 Revision 1.0 (07-11-13)
DATASHEET
Chapter 6 Register Description
The registers shown in Table 6.1 are accessible through the SMBus. An entry of ‘-’ indicates that the
bit is not used and will always read ‘0’.
Table 6.1 Register Set in Hexadecimal Order
REGISTER
ADDRESS R/W REGISTER NAME FUNCTION
DEFAULT
VALUE PAGE
00h R
Internal Diode Data
High Byte
Stores the integer data for the
Internal Diode
00h
Page 27
01h R
External Diode Data
High Byte
Stores the integer data for the
External Diode
00h
02h R-C Status
Stores status bits for the Internal
Diode and External Diode
00h Page 28
03h R/W Configuration
Controls the general operation of
the device (mirrored at address
09h)
00h Page 28
04h R/W Conversion Rate
Controls the conversion rate for
updating temperature data
(mirrored at address 0Ah)
06h
(4/sec)
Page 29
05h R/W
Internal Diode High
Limit
Stores the 8-bit high limit for the
Internal Diode (mirrored at address
0Bh)
55h
(85°C)
Page 30
06h R/W
Internal Diode Low
Limit
Stores the 8-bit low limit for the
Internal Diode (mirrored at address
0Ch)
00h
(0°C)
07h R/W
External Diode High
Limit High Byte
Stores the integer portion of the
high limit for the External Diode
(mirrored at register 0Dh)
55h
(85°C)
08h R/W
External Diode Low
Limit High Byte
Stores the integer portion of the
low limit for the External Diode
(mirrored at register 0Eh)
00h
(0°C)
09h R/W Configuration
Controls the general operation of
the device (mirrored at address
03h)
00h
Page 28
0Ah R/W Conversion Rate
Controls the conversion rate for
updating temperature data
(mirrored at address 04h)
06h
(4/sec)
Page 29
Dual Channel 1°C Temperature Sensor with Beta Compensation and 1.8V SMBus Communications
Datasheet
Revision 1.0 (07-11-13) 26 SMSC EMC1182
DATASHEET
0Bh R/W
Internal Diode High
Limit
Stores the 8-bit high limit for the
Internal Diode (mirrored at address
05h)
55h
(85°C)
Page 30
0Ch R/W
Internal Diode Low
Limit
Stores the 8-bit low limit for the
Internal Diode (mirrored at address
06h)
00h
(0°C)
0Dh R/W
External Diode High
Limit High Byte
Stores the integer portion of the
high limit for the External Diode
(mirrored at register 07h)
55h
(85°C)
0Eh R/W
External Diode Low
Limit High Byte
Stores the integer portion of the
low limit for the External Diode
(mirrored at register 08h)
00h
(0°C)
0Fh W One Shot
A write to this register initiates a
one shot update.
00h Page 31
10h R
External Diode Data
Low Byte
Stores the fractional data for the
External Diode
00h Page 27
11h R/W Scratchpad
Scratchpad register for software
compatibility
00h Page 31
12h R/W Scratchpad
Scratchpad register for software
compatibility
00h Page 31
13h R/W
External Diode High
Limit Low Byte
Stores the fractional portion of the
high limit for the External Diode
00h
Page 30
14h R/W
External Diode Low
Limit Low Byte
Stores the fractional portion of the
low limit for the External Diode
00h
19h R/W
External Diode
Therm Limit
Stores the 8-bit critical temperature
limit for the External Diode
55h
(85°C)
Page 32
1Fh R/W
Channel Mask
Register
Controls the masking of individual
channels
00h Page 32
20h R/W
Internal Diode Therm
Limit
Stores the 8-bit critical temperature
limit for the Internal Diode
55h
(85°C
Page 32
21h R/W Therm Hysteresis
Stores the 8-bit hysteresis value
that applies to all Therm limits
0Ah
(10°C)
22h R/W Consecutive ALERT
Controls the number of out-of-limit
conditions that must occur before
an interrupt is asserted
70h Page 33
25h R/W
External Diode1 Beta
Configuration
Stores the Beta Compensation
circuitry settings for External
Diode1
08h Page 35
27h R/W
External Diode
Ideality Factor
Stores the ideality factor for the
External Diode
12h
(1.008)
Page 35
Table 6.1 Register Set in Hexadecimal Order (continued)
REGISTER
ADDRESS R/W REGISTER NAME FUNCTION
DEFAULT
VALUE PAGE
Dual Channel 1°C Temperature Sensor with Beta Compensation and 1.8V SMBus Communications
Datasheet
SMSC EMC1182 27 Revision 1.0 (07-11-13)
DATASHEET
6.1 Data Read Interlock
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.
6.2 Temperature Data Registers
As shown in Table 6.2, all temperatures are stored as an 11-bit value with the high byte representing
the integer value and the low byte representing the fractional value left justified to occupy the MSBits.
29h R
Internal Diode Data
Low Byte
Stores the fractional data for the
Internal Diode
00h Page 27
40h R/W Filter Control
Controls the digital filter setting for
the External Diode channel
00h Page 37
FDh R Product ID
Stores a fixed value that identifies
the device
20h Page 37
FEh R Manufacturer ID
Stores a fixed value that
represents SMSC
5Dh Page 37
FFh R Revision
Stores a fixed value that
represents the revision number
07h Page 38
Table 6.2 Temperature Data Registers
ADDR R/W REGISTER B7 B6 B5 B4 B3 B2 B1 B0 DEFAULT
00h R
Internal Diode
High Byte
128 64 32 16 8 4 2 1 00h
29h R
Internal Diode
Low Byte
0.5 0.25 0.125 - - - - - 00h
01h R
External Diode
High Byte
128 64 32 16 8 4 2 1 00h
10h R
External Diode
Low Byte
0.5 0.25 0.125 - - - - - 00h
Table 6.1 Register Set in Hexadecimal Order (continued)
REGISTER
ADDRESS R/W REGISTER NAME FUNCTION
DEFAULT
VALUE PAGE
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42P43-P45P46-P48

EMC1182-1-AIA-TR

Mfr. #:
Buy EMC1182-1-AIA-TR
Manufacturer:
Microchip Technology
Description:
Board Mount Temperature Sensors 1.8V SMBus Dual Tmp Sensor /w Alerts
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet