EMC1204-ACZL-TR SMSC, EMC1204-ACZL-TR Datasheet

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EMC1204-ACZL-TR

Manufacturer Part Number
EMC1204-ACZL-TR
Description
Board Mount Temperature Sensors Temp Snsr 3 Remote
Manufacturer
SMSC
Datasheet

Specifications of EMC1204-ACZL-TR

Lead Free Status / Rohs Status
Lead free / RoHS Compliant
PRODUCT FEATURES
General Description
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
DN1
DP1
TEMPERATURE
INTERNAL
MONITOR
Local Temp
Switching
Current
Diode
1
1
TEMPERATURE
MONITOR
REMOTE
Simplified Block Diagram
2
3
Sigma Delta
EMC1203/EMC1204
DATASHEET
11-bit
ADC
Triple/Quad Single-Wire Temp
Sensor in MSOP-8 Using
SMSC BudgetBus
Interface
Features
Applications
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 lead-free RoHS compliant packages
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
EMC1203/EMC1204
Temperature
±
Registers
1
º
C Accuracy 60
º
º
C resolution
C resolution
º
C to +85
º
C to +191.875
º
º
C to 100
C
Interface
BBUS
TM
º
º
C
Revision 1.1 (06-11-08)
C
Sensor
Datasheet
BBUS

Related parts for EMC1204-ACZL-TR

EMC1204-ACZL-TR 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

... EMC1203-ACZL- PIN, MSOP LEAD-FREE ROHS COMPLIANT PACKAGE EMC1204-ACZL- PIN, MSOP LEAD-FREE ROHS COMPLIANT PACKAGE 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 ...

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

... 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 10 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 ...

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