EMC1204 SMSC Corporation, EMC1204 Datasheet

no-image

EMC1204

Manufacturer Part Number
EMC1204
Description
(EMC1203 / EMC1204) Triple/Quad Single-Wire Temp Sensor
Manufacturer
SMSC Corporation
Datasheet
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.
SMSC EMC1203/EMC1204
NUMBER
EMC1203
EMC1204
PART
DP2/DN3
DN2/DP3
DP1
DN1
General Description
TEMPERATURE
INTERNAL
MONITOR
Local Temp
Switching
Current
Diode
1
1
TEMPERATURE
MONITOR
REMOTE
2
3
Sigma Delta
EMC1203/EMC1204
DATASHEET
11-bit
ADC
Simplified Block Diagram
Single-wire SMSC BudgetBus™ Sensor Interface
Low Power, 3.0V to 3.6V Supply
External Temperature Sensor
Self Contained Internal Temperature Sensor
MSOP-8 3x3mm packages; green, lead-free
Desktop Computers
Notebook Computers
Server Applications
— < 50uA at 1 conversion per second
— < 2.5uA in Standby
— Range -63.875
— 0.125
— Diode Fault Reporting
— Range 0
— 0.125
— ±3º C Accuracy 0º C to 85º C
packages also available
Triple/Quad Single-Wire Temp
Sensor in MSOP-8 Using SMSC
BudgetBus
EMC1203/EMC1204
Temperature
±
Registers
1
º
C Accuracy 60
º
º
C resolution
C resolution
Features
Applications
º
C to +85
º
C to +191.875
º
º
TM
C
C to 100
Interface
BBUS
Sensor Interface
º
º
C
Revision 1.1 (06-12-06)
C
Datasheet
BBUS

Related parts for EMC1204

EMC1204 Summary of contents

Page 1

... 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 ...

Page 2

... Datasheet EMC1203-ACZL- PIN MSOP PACKAGE (GREEN, LEAD-FREE) EMC1204-ACZL- PIN MSOP PACKAGE (GREEN, LEAD-FREE) Evaluation Board available upon request. (EVB-KBC1100) 80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123 Copyright © 2006 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 ...

Page 3

... Positive Analog Connection to External Temperature Diode 1 Negative Analog Connection to External Temperature Diode 1 Negative Analog Connection to External Temperature Diode 2 Positve Analog Connection to External Temperature Diode 3, EMC1204 only Positve Analog Connection to External Temperature Diode 2 Negative Analog Connection to External Temperature Diode 3, EMC1204 only Serial Bus Interface to BBUS Host Normally GND, this pin may be configured to source a synchronous clock ...

Page 4

... Absolute Maximum Ratings Table 1.2 EMC1203 and EMC1204 Maximum Ratings DESCRIPTION Supply Voltage V DD Voltage on any other pin Operating Temperature Range Storage Temperature Range Lead Temperature Range Package Thermal Characteristics for MSOP-8 Power Dissipation Thermal Resistance(at 0 air flow) ESD Rating, All Pins Human Body Model Note: Stresses above those listed could cause damage to the device ...

Page 5

... External Temperature Measurement Temperature Accuracy Remote Diode 60°C to 100°C Remote Diode 0°C to 125°C Remote Diode 0°C to 125°C ADC Resolution Conversion Time per sensor SMSC EMC1203/EMC1204 TM Sensor Interface Table 2.1 Electrical Characteristics = 0°C to +85°C, Typical values 27°C unless otherwise noted A A ...

Page 6

... Thermal management consists of the host acquiring the temperature data from the EMC1203 and EMC1204 controlling the speed of one or more fans. The host has the ability to compare measured temperature levels to preset limits and take the appropriate action when values are found to be out of limit ...

Page 7

... EMC1204 Temperature Monitoring The EMC1204, incorporates one internal diode and can monitor three external diodes. Total conversion time for one internal and three external temperature reading is 80ms. An internal multiplexer switches between internal and external diodes. The external thermal diode connected to DP1 and DN1 can ...

Page 8

... SMSC BudgetBus™ Sensor Interface The EMC1203 and EMC1204 series of temperature monitors communicate with a host controller, such as the KBC1100, through the SMSC BudgetBus™ Sensor Interface. The BBUS is a single wire serial communication protocol between the computer host and its peripheral devices. Please refer to the SMSC BudgetBus™ ...

Page 9

... DP and DN pins. 3.5 Conversion Rate The conversion rate can be controlled by the host. This is accomplished by periodically placing the device in standby as described in SMSC EMC1203/EMC1204 TM Sensor Interface shows example temperature readings and the value that will be reported on the Table 3.1 Temperature Data Format 2’ ...

Page 10

... Triple/Quad Single-Wire Temp Sensor in MSOP-8 Using SMSC BudgetBus MAX 1.10 Overall Package Height 0.15 0.95 Body Thickness 3.20 5.15 3.20 0.23 Lead Foot Thickness 0.80 Lead Foot Length o 8 Lead Foot Angle 0.38 0.10 8 DATASHEET TM Sensor Interface Datasheet REMARKS Standoff X Body Size Y Span Y body Size Lead Length Lead Pitch Lead Width Coplanarity SMSC EMC1203/EMC1204 ...

Related keywords