EMC1403 datasheet(7/42 Pages) SMSC

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1°C Temperature Sensor with Beta Compensation

Datasheet

SMSC EMC1403/EMC1404

Revision 1.16 (03-15-07)

DATASHEET

Chapter 1 Block Diagram

1.1

Part Selection

The EMC1403 and EMC1404 device configuration is highlighted below.

Note 1.1

External 2 and external 3 channels have beta configuration hard wired to ‘0111b’ and REC

enabled.

Table 1.1 Part Selection

PART

NUMBER

SMBUS

ADDRESS

FUNCTIONALITY

PRODUCT

EXTERNAL

DIODES

DIODE 1 DEFAULT

CONFIGURATION

DIODE 2

DEFAULT

CONFIGURATION

OTHER

EMC1403 - 1

100_1100b

Detect Diode w/

REC enabled

Detect Diode w/

REC enabled

Software

programmable

and maskable

High Limits

Software

programmable

THERM Limits

21h

EMC1404 - 1

100_1100b

Detect Diode w/

REC enabled

Fixed 2N3904 in

anti-parallel diode

configuration

Note 1.1

Software

programmable

and maskable

High Limits

Software

programmable

THERM Limits

25h

Internal

Temp Diode

Switching

Current

Analog

Mux

Internal

Temperature

Low Limit Registers

High Limit Registers

Conversion Rate Register

Interupt Masking

Status Registers

Configuration Register

ALERT

THERM

SMCLK

SMDATA

DP1

DN1

VDD

GND

EMC1403/04

External

Temperature

ΔΣ ADC

THERM Limit Register

DP2

DN2

THERM Hysteresis Register

Anti-parallel

diodes

EMC1403 Datasheet(PDF) 7 Page - SMSC Corporation

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