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EMC1023 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 EMC1023
기능 Triple Temperature Sensor
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EMC1023 데이터시트, 핀배열, 회로
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EMC1023
1°C Triple Temperature
Sensor with Resistance
Error Correction
Datasheet
General Description
The EMC1023 is a System Management Bus (SMBus)
temperature sensor that is capable of monitoring three
temperature zones. Four unique part numbers can be
ordered, each with a different SMBus Address. The
three temperature zones consist of two external diodes
and one internal monitor.
Extended features include resistance error correction
and ideality factor configuration eliminating both major
sources of temperature measurement error.1 The 11-bit
delta-sigma temperature-to-digital converter provides
superb linearity, excellent noise immunity and
repeatable temperature readings. An extended
temperature format may be selected for compatibility
with a broad range of CPUs. Selectable conversion
rates and standby mode support low-power operation.
1.Patents pending.
Features
Resistance Error Correction
Ideality Factor Configuration
Accepts 2200pF cap for noise suppression
Remote Thermal Zones
±1°C Accuracy (40°C to 80°C)
— 0.125°C resolution
Internal Thermal Zone
±3°C Accuracy (0°C to 85°C)
— 0.125°C resolution
Low Power; 3.0V to 3.6V Supply
Four Unique SMBus Addresses Available
Programmable Conversion Rate
MSOP-8 3x3mm Package; Green, Lead-Free
Package also available.
Applications
Desktop and Notebook Computers
Thermostats
Smart batteries
Industrial/Automotive
DP1
DN1
Switching
Current
DP2
DN2
Local Temp
Diode
Simplified Block Diagram
EMC1023
11-bit
delta-sigma
ADC
Remote Temp
Register 1
Remote Temp
Register 2
Local Temp
Register
Configuration
Register
Digital Mux
and
Byte Interlock
Status Register
SMCLK
SMDATA
SMSC EMC1023
DATASHEET
Revision 1.2 (04-15-05)




EMC1023 pdf, 반도체, 판매, 대치품
1°C Triple Temperature Sensor with Resistance Error Correction
Datasheet
Table 1.2 Absolute Maximum Ratings
DESCRIPTION
Supply Voltage VDD
Voltage on SMDATA and SMCLK pins
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
RATING
-0.3 to 5.0
-0.3 to 5.5
-0.3 to VDD+0.3
0 to 85
-55 to 150
Refer to JEDEC
Spec. J-STD-020
TBD
135.9
2000
UNIT
V
V
V
°C
°C
°C/W
V
Note:
Stresses above those listed could cause damage to the device. This is a stress rating only
and functional operation of the device at any other condition above those indicated in the
operation sections of this specification is not implied. When powering this device from
laboratory or system power supplies, it is important that the Absolute Maximum Ratings not be
exceeded or device failure can result. Some power supplies exhibit voltage spikes on their
outputs when the AC power is switched on or off. In addition, voltage transients on the AC
power line may appear on the DC output. If this possibility exists, it is suggested that a clamp
circuit be used.
Revision 1.2 (04-15-05)
4
DATASHEET
SMSC EMC1023

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EMC1023 전자부품, 판매, 대치품
1°C Triple Temperature Sensor with Resistance Error Correction
Datasheet
Chapter 3 System Management Bus Interface Protocol
A host controller, such as an SMSC I/O controller, communicates with the EMC1023 via the two wire
serial interface named SMBus. The SMBus interface is used to read and write registers in the
EMC1023, which is a slave-only device. A detailed timing diagram is shown in Figure 3.1.
SMCLK
TLOW
TR
THIGH
TF
THD:STA
TSU:STO
THD:STA
THD:DAT TSU:DAT
TSU:STA
SMDATA
TBUF
P S S - Start Condition
S P - Stop Condition P
Figure 3.1 System Management Bus Timing Diagram
The EMC1023 implements a subset of the SMBus specification and supports Write Byte, Read Byte,
Send Byte, Receive Byte, and Alert Response Address protocols. as shown. In the tables that describe
the protocol, the “gray” columns indicate that the slave is driving the bus.
3.1
START
1
Write Byte
The Write Byte protocol is used to write one byte of data to the registers as shown below:
Table 3.1 SMBus Write Byte Protocol
SLAVE ADDRESS
7
WR
1
ACK
1
COMMAND
8
ACK
1
DATA
8
ACK
1
STOP
1
3.2 Read Byte
The Read Byte protocol is used to read one byte of data from the registers as shown below:
Table 3.2 SMBus Read Byte Protocol
START SLAVE ADDRESS
17
WR
1
ACK
1
COMMAND
8
ACK
1
START
1
SLAVE ADDRESS
7
RD
1
ACK
1
DATA
8
NACK
1
STOP
1
3.3
Send Byte
The Send Byte protocol is used to set the Internal Address Register to the correct Address. The Send
Byte can be followed by the Receive Byte protocol described below in order to read data from the
register. The send byte protocol cannot be used to write data - if data is to be written to a register then
the write byte protocol must be used as described in subsection above. The send byte protocol is
shown in Table 3.3, “SMBus Send Byte Protocol,” on page 7.
FIELD:
Bits:
START
1
SMSC EMC1023
Table 3.3 SMBus Send Byte Protocol
SLAVE ADDR
7
WR ACK
11
REG. ADDR
8
7
DATASHEET
ACK
1
STOP
1
Revision 1.2 (04-15-05)

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EMC1023

Triple Temperature Sensor

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