SMSC EMC1103 PRODUCT PREVIEW Revision 2.7 (07-15-08)
Data Brief
PRODUCT FEATURES
EMC1103
SST Compliant
Hardware Monitor with
Three Temperature
Channels
General Description
The EMC1103 is a one-wire sensor that is capable of
monitoring up to three temperature zones for an Intel PC
platform containing an SST host. The three temperature
zones consist of an internal temperature diode and two
externally connected temperature diodes. In cooperation
with a host device, thermal management and fan control
can be performed. Communication takes place over a
one-wire SST based interface. The internal 11-bit delta-
sigma ADC architecture provides superb linearity, high
accuracy, and excellent noise immunity.
Applications
Desktop PCs, Servers and Workstations
Features
Single Wire Interface (SST based)
— SST 1.0 compliant
— Fixed Address, Discoverable Device
— Nine programmable addresses
— Supports FCS Abort functionality not available in SST
0.9 compliant devices
Resistance Error Correction
Ideality Configuration
Beta Compensation
Two External Temperature Monitors
— 0.125°C resolution
— ±1°C Accuracy (50°C to 70°C)
— Diode Fault Reporting
— Second External Diode configured to read a discrete
diode.
Internal Temperature Monitor
— Range -40°C to +125°C
— 0.125°C resolution
— ±2°C Accuracy (40°C to 70°C)
Supply
— 3.0V to 3.6V
Simplified Block Diagram
EMC1103
Internal
Temp
Diode
Switching
Current Configuration
Register
Status Register
External 1
Temp Register
Internal Temp
Register
11-bit
delta-sigma
ADC
Analog Mux
and Anti-Alias Filter
Digital Mux
and
Byte Interlock
SST One-Wire Interface
DP1
DN1
DP2
DN2
External 2
Temp Register
SST
ADD1
ADD0
ORDER NUMBER(S):
80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123
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Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete information sufficient for
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reserves the right to make changes to specifications and product descriptions at any time without notice. Contact your local SMSC sales office to obtain the latest specifications
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PART NUMBER FEATURES PACKAGE
EMC1103-AIZL-TR External Diode 1 configured to monitor 65nm CPU
External Diode 2 configured to monitor 2N3904
10 pin MSOP Lead-Free ROHS Compliant
EMC1103-1-AIZL-TR External Diode 1 configured to monitor 2N3904
External Diode 2 configured to monitor 2N3904
10 pin MSOP Lead-Free ROHS Compliant
SST Compliant Hardware Monitor with Three Temperature Channels
Revision 2.7 (07-15-08) 2 SMSC EMC1103
PRODUCT PREVIEW
SST Compliant Hardware Monitor with Three Temperature Channels
Revision 2.7 (07-15-08) 3 SMSC EMC1103
PRODUCT PREVIEW
Package Outline
Figure 1 EMC1103 10-Pin MSOP Package Drawing
A
A2
A1
SEATING PLANE
SIDE VIEW
ccc C
GAUGE PLANE
H
3-D VIEW
TOP VIEW
C
3
2
END VIEW
4
35
DETAIL "A"
NOTES:
1. ALL DIMENSIONS ARE IN MILLIM ETER.
2. TOLERANCE ON THE TRUE POSITION OF EACH LEAD IS ± 0.04 mm AT MAXIMUM MATERIAL
CONDITION.
3. PACKAGE BODY DIMENSIONS "D" AND "E1" DO NOT INCLUDE MOLD/INTERLEAD PROTRUSIONS
OR FLASH. MAXIMUM MOLD PROTRUSIONS OR FLASH IS 0.15 mm (0.006 INCHES) PER END AND
SIDE. DIMENSIONS "D" AND "E1" ARE DETERMINED AT THE OUTERMOST EXTREMES OF THE
PLASTIC BODY, INCLUDING ANY MISMATCH BETWEEN TOP AND BOTTOM PLASTIC BODY. THEY
ARE DETERMINED AT DATUM PLANE "H".
4. DIMENSIONS "b" AND "c" APPLY TO THE FLAT SECTION OF THE LEAD BETWEEN 0.08 mm AND
0.15 mm FROM THE LEAD TIP.
5. DETAILS OF THE PIN 1 IDENTIFIER ARE OPTIONAL, BUT MUST BE LOCATED WITHIN THE ZONE
INDICATED.
A IN ITI AL R ELEASE 3/ 29/ 05 S.K .I LIEV
c
SEE DETAIL "A"
e
D
E1 E
PIN 1 IDENTIFIER
AREA (D/2 X E1/2)
10X b
L
(0.95)
0.25
0° - 8°
DI M A N D T O L P ER A S M E Y14.5M - 1994
FINISH
MATERIAL
DECIMAL
X.X
X.XX
X.XXX
80 ARKAY DRIVE
HA U P PA U G E, N Y 11788
USA
ANGULAR
PRINT W ITH "SCALE TO FIT"
DO N OT SC ALE DRAWING
CHECKED
APPROVED
NAME
DRAWN
DWG NUMBER
SCALE
TITLE
DATE
STD COMPLIANCE
UN LES S O TH ER W ISE SPECIFIED
DIMENSIONS ARE IN MILLIMETERS
A ND TO LERAN CES ARE:
THIRD ANGLE PROJECTION
REV
SHEET
REVISION DESCRIPTION
REVISION HISTORY
RELEASED BYDATE
PACKAGE OUTLINE
10 PIN TSSOP, 3x3 MM BODY, 0.50 MM PITCH
±1°
-
-
±0.1
±0.05
±0.025
S.K.ILIEV
S.K.ILIEV
S.K.ILIEV
3/29/05
3/29/05
1:1
3/29/05
MO-10-TSSOP-3x3
JEDEC: MO-187 1 OF 1
A
C
SEATING PLANE
4
