EMC1047-2-AIZL-TR SMSC, EMC1047-2-AIZL-TR Datasheet
EMC1047-2-AIZL-TR
Specifications of EMC1047-2-AIZL-TR
Related parts for EMC1047-2-AIZL-TR
EMC1047-2-AIZL-TR Summary of contents
Page 1
... PRODUCT FEATURES General Description The EMC1046/EMC1047are high accuracy, low cost, System Management Bus (SMBus) temperature sensors. Advanced features such as Resistance Error Correction (REC), Beta Compensation (to CPU diodes requiring the BJT or transistor model) and automatic diode type detection combine to provide a robust solution for complex environmental monitoring applications. Each device provides ± ...
Page 2
... RoHS Compliant) EMC1047-1-AIZL-TR 10-pin TSSOP (Lead-Free RoHS Compliant) EMC1047-2-AIZL-TR 10-pin TSSOP (Lead-Free RoHS Compliant) 80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123 Copyright © 2009 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
... High Limit Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 5.14 Low Limit Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 5.15 REC Configuration Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 5.16 Hottest Configuration Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 5.17 Channel Configuration Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 5.18 Filter Control Register 5.19 Product ID Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 5.20 Manufacturer ID Register (FEh 5.21 Revision Register (FFh SMSC EMC1046/EMC1047 3 DATASHEET Revision 0.69 (06-29-09) ...
Page 4
... Chapter 6 Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 6.1 EMC1046/EMC1047 Package Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 6.2 Package Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 6.2.1 EMC1046-X-AIZL (10-Pin TSSOP Chapter 7 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Revision 0.69 (06-29-09) 1°C Multiple Temperature Sensor with Beta Compensation and Hottest of Thermal Zones 4 DATASHEET Datasheet SMSC EMC1046/EMC1047 ...
Page 5
... Multiple Temperature Sensor with Beta Compensation and Hottest of Thermal Zones Datasheet List of Figures Figure 1.1 EMC1046/EMC1047 Pin Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 3.1 SMBus Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 4.1 System Diagram for EMC1046/EMC1047 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 4.2 Diode Connections Figure 6.1 10-Pin TSSOP Package Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 SMSC EMC1046/EMC1047 5 DATASHEET Revision 0 ...
Page 6
... Table 3.2 Write Byte Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Table 3.3 Read Byte Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Table 3.4 Send Byte Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Table 3.5 Receive Byte Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Table 4.1 Supply Current vs. Conversion Rate for EMC1046/EMC1047 . . . . . . . . . . . . . . . . . . . . . . . . 16 Table 5.1 Register Set in Hexadecimal Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Table 5.2 Temperature Data Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Table 5.3 Temperature Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Table 5 ...
Page 7
... Multiple Temperature Sensor with Beta Compensation and Hottest of Thermal Zones Datasheet Chapter 1 Pin Description VDD DP1 / DN6* DN1 / DP6* DP2 / DN3 DN2 / DP3 Figure 1.1 EMC1046/EMC1047 Pin Diagram Table 1.1 EMC1046/EMC1047 Pin Description PIN NUMBER NAME 1 VDD 2 DP1 / DN6* 3 DN1 / DP6* ...
Page 8
... Table 1.1 EMC1046/EMC1047 Pin Description (continued) PIN NUMBER NAME 8 DP4 / DN5 9 SMDATA 10 SMCLK The pin types are described below. All pins labelled (5V) are 5V tolerant. APPLICATION NOTE: For the 5V tolerant pins that have a pull-up resistor, the voltage difference between VDD and the pull-up voltage must never exceed 3.6V. ...
Page 9
... T = -40°C to 125°C, all typical values CHARACTERISTIC SYMBOL Supply Voltage V DD Supply Current I DD Supply Current I DD SMSC EMC1046/EMC1047 Table 2.1 Absolute Maximum Ratings ) - V |) (see Note 2.1) DD Refer to JEDEC Spec. J-STD- Table 2.2 Electrical Specifications A MIN TYP MAX UNITS DC Power 3 ...
Page 10
... T < 127°C DIODE default settings Connected across external diode In series with DP and DN lines powered or unpowered T < 85°C A Time after power up before all channels updated with valid data Delay before SMBus communications should be sent by host CONDITIONS < 85°C A SMSC EMC1046/EMC1047 ...
Page 11
... Clock Low Period t LOW Clock High Period t HIGH Clock/Data Fall time t FALL Clock/Data Rise time t RISE Clock/Data Rise time t RISE Capacitive Load C LOAD SMSC EMC1046/EMC1047 = 27°C unless otherwise noted. A MIN TYP MAX UNITS SMDATA = 0.4V SMBus Timing 10 400 kHz ...
Page 12
... Chapter 3 System Management Bus Interface Protocol 3.1 System Management Bus Interface Protocol The EMC1046/EMC1047 communicate with a host controller, such as an SMSC SIO, through the SMBus. The SMBus is a two-wire serial communication protocol between a computer host and its peripheral devices. A detailed timing diagram is shown in ...
Page 13
... Note: Other addresses are available. Contact SMSC for more information. 3.7 SMBus Timeout The EMC1046/EMC1047 support SMBus Timeout. If the clock line is held low for longer than 30ms, the device will reset its SMBus protocol. This function can be enabled by setting the TIMEOUT bit in the Consecutive Alert Register (see SMSC EMC1046/EMC1047 Table 3 ...
Page 14
... Thermal management is performed in cooperation with a host device. This consists of the host reading the temperature data of both the external and internal temperature diodes of the EMC1046/EMC1047 and using that data to control the speed of one or more fans. Because the EMC1046/EMC1047 automatically corrects for temperature errors due to series ...
Page 15
... External Diode channels to determine which of these channels is reporting the hottest temperature. The hottest temperature is stored in the Hottest Temperature Registers and the appropriate status bit in the Hottest Status Register is set optional feature, the EMC1046/EMC1047 can also flag an event if the hottest temperature channel changes. For example, suppose that External Diode channels 1, 3, and 4 are programmed to be compared in the “ ...
Page 16
... For the EMC1046, this channel can support a diode-connected transistor (such as a 2N3904 substrate transistor (such as those found in an CPU or GPU) as shown in diodes are not supported on the External Diode 1 channel. For the EMC1047, all channels support anti-parallel diodes. If this function is enabled for a specific channel (see Section 5 ...
Page 17
... CPU substrate PNP 4.3.1 Diode Faults The EMC1046/EMC1047 actively detects an open and short condition on each measurement channel. When a diode fault is detected, the temperature data MSByte is forced to a value of 80h and the FAULT bit is set in the Status Register. When an external diode channel is configured to operate in APD mode, the circuitry will detect independent open fault conditions, however a short condition will be shared between the APD channels ...
Page 18
... Page 23 00h Page 24 06h Page 24 (4/sec) 55h Page 25 (85°C) 00h Page 25 (0°C) 55h Page 25 (85°C) 00h Page 25 (0°C) 00h Page 24 06h Page 24 (4/sec) 55h Page 25 (85°C) 00h Page 25 (0°C) 55h Page 25 (85°C) SMSC EMC1046/EMC1047 ...
Page 19
... R External Diode 3 Low Byte 2Ch R/W External Diode 3 High Limit High Byte SMSC EMC1046/EMC1047 FUNCTION Stores the integer portion of the low limit for the External Diode 1 (mirrored at register 08h) A write to this register initiates a one shot update. Stores the fractional data for the ...
Page 20
... Page 25 00h Page 30 00h Page 30 00h Page 31 00h Page 31 00h Page 32 00h Page 32 00h Page 33 00h Page 33 00h Page 34 00h Page 22 00h Page 22 00h Page 22 00h Page 22 00h Page 22 00h Page 22 55h Page 25 (85°C) 00h Page 25 (0°C) SMSC EMC1046/EMC1047 ...
Page 21
... Product ID - EMC1047 FEh R Manufacturer ID FFh R Revision SMSC EMC1046/EMC1047 FUNCTION Stores the fractional data for the low limit for the External Diode 4 channel Stores the fractional data for the low limit for the External Diode 4 channel Stores the integer data for the high ...
Page 22
... Sign 0.5 0.25 0.125 - Sign 0.5 0.25 0.125 - Sign 0.5 0.25 0.125 - Sign 0.5 0.25 0.125 - 22 DATASHEET Datasheet DEFAULT 00h - - - - 00h 00h - - - - 00h 00h - - - - 00h 00h - - - - 00h 00h - - - - 00h 00h - - - - 00h 00h - - - - 00h Table 5.3. SMSC EMC1046/EMC1047 ...
Page 23
... See the Low Limit Status Register for specific channel information Bit 2 - FAULT - This bit is asserted when a diode fault is detected on any of the external diode channels. See the External Diode Fault Register for specific channel information SMSC EMC1046/EMC1047 Table 5.3 Temperature Data Format BINARY ...
Page 24
... Multiple Temperature Sensor with Beta Compensation and Hottest of Thermal Zones Table 5.5 Configuration Register RUN / - STOP Table 5.6 Conversion Rate Register Rate Table 5.7 Conversion Rate DATASHEET DAVG_ - DIS Table 4.1. Table 4. DEFAULT - CONV[2:0] (4/sec) Table 5.7. CONVERSIONS / SECOND (default) SMSC EMC1046/EMC1047 Datasheet DEFAULT 00h 06h ...
Page 25
... R/W External Diode 1 High Limit Low Byte 08h R/W External Diode 1 Low 0Eh Limit High Byte 14h R/W External Diode1 Low Limit Low Byte SMSC EMC1046/EMC1047 Table 5.7 Conversion Rate (continued) 0 CONVERSIONS / SECOND 1 Table 5.8. Table 5.9 Temperature Limit Registers Sign ...
Page 26
... Sign Sign 0.5 0.25 0.125 - - 0.5 0.25 0.125 - - Sign Sign 0.5 0.25 0.125 - - 0.5 0.25 0.125 - - 26 DATASHEET Datasheet DEFAULT 55h (85° 00h (0° 00h - - - 00h 55h (85° 00h (0° 00h - - - 00h 55h (85° 00h (0° 00h - - - 00h SMSC EMC1046/EMC1047 ...
Page 27
... When the device is in standby mode, updating the limit registers will have no affect until the next conversion cycle occurs. This can be initiated via a write to the One Shot Register or by clearing the RUN / STOP bit in the Configuration Register (see 5.7 One Shot Register ADDR. R/W REGISTER 0Fh W One Shot SMSC EMC1046/EMC1047 Sign ...
Page 28
... Measurements will continue normally. For example, if the CALRT[2:0] bits are set for 4 consecutive alerts on an EMC1046/EMC1047 device, the high limits are set at 70°C, and none of the channels are masked, then the status bits will be asserted after the following four measurements: 1. Internal Diode reads 71° ...
Page 29
... Beta Configuration Register ADDR. R/W REGISTER 25h R/W External Diode 1 Beta Configuration 26h R/W External Diode 2 Beta Configuration 71h R/W External Diode 4 Beta Configuration SMSC EMC1046/EMC1047 Table 5.13 Consecutive Alert Settings NUMBER OF CONSECUTIVE OUT OF LIMIT (default for CALRT[2:0 Table 5.14 Beta Configuration Register ...
Page 30
... High Byte 33h R Hottest 0.5 Temperature Low Byte Revision 0.69 (06-29-09) 1°C Multiple Temperature Sensor with Beta Compensation and Hottest of Thermal Zones 0.25 0.125 - - 30 DATASHEET Datasheet MINIMUM BETA < 0.08 < 0.111 < 0.176 < 0.29 < 0.48 < 0.9 < 2.33 Disabled DEFAULT 80h - - - 00h SMSC EMC1046/EMC1047 ...
Page 31
... Bit 4 - E4HIGH - This bit is set when the External Diode 4 channel meets or exceeds its programmed high limit. Bit 3 - E3HIGH - This bit is set when the External Diode 3 channel meets or exceeds its programmed high limit. SMSC EMC1046/EMC1047 Section 5.16 External diodes are selected then the High Byte Register will Table 5.17 Hottest Temperature Register ...
Page 32
... The REC Control Register controls the Resistance Error Correction circuitry for each of the external diode channels. Bits Ex_REC_n (EMC1047 only) - Disables the Resistance Error Correction (REC) for the External Diode X channel. Note that E6_REC_n can only be written for the EMC1047 only Revision 0.69 (06-29-09) 1° ...
Page 33
... The DP4 / DN5 and DN4 / DP5 pins do not support two anti-parallel diode connections. The pins will only monitor a single external diode (External Diode 4). ‘1’ - The DP4 / DN5 and DN4 / DP5 pins support two anti-parallel diode connections (External Diode 4 and External Diode 5). SMSC EMC1046/EMC1047 Table 5.21 Hottest Configuration Register B6 B5 ...
Page 34
... The DP2 / DN3 and DN2 / DP3 pins support two anti-parallel diode connections (External Diode 2 and External Diode 3). Bit 0 - EXT1_APD (EMC1047 only)- Enables the DP1 / DN6 and DN1 / DP6 pins to support two anti- parallel diode connections versus a single diode connection. ...
Page 35
... Manufacturer ID The Manufacturer ID Register holds an 8-bit word that identifies SMSC. 5.21 Revision Register (FFh) ADDR. R/W REGISTER FFh R Revision The Revision register contains an 8 bit word that identifies the die revision. SMSC EMC1046/EMC1047 Table 5.25 Manufacturer ID Register Table 5.26 Revision Register ...
Page 36
... Chapter 6 Package Information 6.1 EMC1046/EMC1047 Package Drawing PIN 1 IDENTIFIER AREA (D/2 X E1/ 10X b TOP VIEW SEATING PLANE A1 ccc C SIDE VIEW H C GAUGE PLANE 0.25 SEATING PLANE 0° - 8° L (0.95) DETAIL "A" Figure 6.1 10-Pin TSSOP Package Drawing 6.2 Package Markings 6.2.1 EMC1046-X-AIZL (10-Pin TSSOP) All devices will be marked on the first line of the top side with “ ...
Page 37
... Multiple Temperature Sensor with Beta Compensation and Hottest of Thermal Zones Datasheet Chapter 7 Revision History REVISION LEVEL AND DATE Rev. 0.69 (06-29-09) Table 1.1, "EMC1046/EMC1047 Pin Description" Table 1.1, "EMC1046/EMC1047 Pin Description" Table 2.1, "Absolute Maximum Ratings" SMSC EMC1046/EMC1047 Table 7.1 Customer Revision History ...