EMC1203/EMC1204 Triple/Quad Single-Wire Temp Sensor in MSOP-8 Using SMSC Budget

EMC1203/EMC1204
Triple/Quad Single-Wire Temp
Sensor in MSOP-8 Using
SMSC BudgetBusTM Sensor
Interface
PRODUCT FEATURES
Data Brief
General Description
Features
The EMC1203 and EMC1204 are temperature sensors
that communicate with a host over a single-wire SMSC
BudgetBus™ Sensor Interface. The EMC1203 has an
internal temperature sensor and monitors up to two
remote diodes. An additional remote diode is added with
the EMC1204 for a total of three remote zones, and both
devices are in a small MSOP-8 package. When used in
combination with an SMSC Super I/O host, such as a
keyboard controller, a complete thermal management
system is created. A power down mode preserves
battery life in portable applications. The internal 11-bit
sigma delta temperature-to-digital converter provides
superb linearity, high accuracy and excellent noise
immunity.
„
PART
NUMBER
INTERNAL
TEMPERATURE
MONITOR
REMOTE
TEMPERATURE
MONITOR
EMC1203
EMC1204
1
1
2
3
„
Single-wire SMSC BudgetBus™ Sensor Interface
Low Power, 3.0V to 3.6V Supply
— < 50uA at 1 conversion per second
— < 2.5uA in Standby
„
External Temperature Sensor
— Range -63.875º C to +191.875º C
— 0.125º C resolution
— ±1º C Accuracy 60º C to 100º C
„
Self Contained Internal Temperature Sensor
— Range 0º C to +85º C
— 0.125º C resolution
„
MSOP-8 3x3mm lead-free RoHS compliant packages
— Diode Fault Reporting
— ±3º C Accuracy 0º C to 85º C
Applications
„
„
„
Desktop Computers
Notebook Computers
Server Applications
Simplified Block Diagram
EMC1203/EMC1204
Switching
Current
DP1
Analog Mux
DN1
DP2/DN3
11-bit
Sigma Delta
ADC
Temperature
Registers
BBUS
Interface
BBUS
DN2/DP3
Local Temp
Diode
SMSC EMC1203/EMC1204
PRODUCT PREVIEW
Revision 1.1 (06-11-08)
Triple/Quad Single-Wire Temp Sensor in MSOP-8 Using SMSC BudgetBusTM Sensor Interface
ORDER NUMBER(S):
EMC1203-ACZL-TR IN 8 PIN, MSOP LEAD-FREE ROHS COMPLIANT PACKAGE
EMC1204-ACZL-TR IN 8, PIN MSOP LEAD-FREE ROHS COMPLIANT PACKAGE
Reel size is 4,000 pieces.
Evaluation Board available upon request. (EVB-KBC1100)
80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123
Copyright © 2008 SMSC or its subsidiaries. All rights reserved.
Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete information sufficient for
construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no responsibility is assumed for inaccuracies. SMSC
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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rights or other intellectual property rights of SMSC or others. All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated
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Revision 1.1 (06-11-08)
2
PRODUCT PREVIEW
SMSC EMC1203/EMC1204
Triple/Quad Single-Wire Temp Sensor in MSOP-8 Using SMSC BudgetBusTM Sensor Interface
Package Outline
Figure 1 8-Pin MSOP Package Outline - 3x3mm Body 0.65mm Pitch
Table 1 8-Pin MSOP Package Parameters
MIN
NOMINAL
MAX
REMARKS
A
0.80
~
1.10
Overall Package Height
A1
0.05
~
0.15
Standoff
A2
0.75
0.85
0.95
Body Thickness
D
2.80
3.00
3.20
X Body Size
E
4.65
4.90
5.15
Y Span
E1
2.80
~
3.20
Y body Size
H
0.08
~
0.23
Lead Foot Thickness
L
0.40
~
0.80
Lead Foot Length
L1
0.95 REF
e
Lead Length
0.65 BSC
Lead Pitch
θ
0o
W
0.22
~
0.38
Lead Width
ccc
~
~
0.10
Coplanarity
~
8o
Lead Foot Angle
Notes:
1. Controlling Unit: millimeters.
2. Tolerance on the true position of the leads is ± 0.065 mm maximum.
3. Package body dimensions D and E1 do not include mold protrusion or flash. Dimensions D and
E1 to be determined at datum plane H. Maximum mold protrusion or flash is 0.15mm (0.006 inches)
per end, and 0.15mm (0.006 inches) per side.
4. Dimension for foot length L measured at the gauge plane 0.25 mm above the seating plane.
5. Details of pin 1 identifier are optional but must be located within the zone indicated.
SMSC EMC1203/EMC1204
3
PRODUCT PREVIEW
Revision 1.1 (06-11-08)
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