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EMC1043-5-ACZL-TR Datasheet(PDF) 1 Page - SMSC Corporation |
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EMC1043-5-ACZL-TR Datasheet(HTML) 1 Page - SMSC Corporation |
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1 / 28 page  SMSC EMC1043 DATASHEET Revision 1.37 (09-05-06) Datasheet PRODUCT FEATURES EMC1043 1°C Triple Temperature Sensor with Beta Compensation and Hotter of Two Zones GENERAL DESCRIPTION The EMC1043 is a family of System Management Bus (SMBus) temperature sensors that monitors three temperature zones, one internal diode and two externally connected diodes, for PC and embedded environments. The EMC1043 includes bet a compensation circuitry to correct for variation in the beta of measurement transistors. Other extended features include resistance error correction and ideality factor configuration to eliminate major sources of temperature measurement error.1 An added feature to the EMC1043 is a function that automatically compares the two external temperature zones and reports the hotter of the two temperatures. Selectable conversion rates and standby mode support low-power operation. The temperature measurement ranges support two data ranges (and formats), -64°C to +127°C and -64°C to +191°C. APPLICATIONS Desktop and Notebook Computers Hardware Management Servers Embedded Applications FEATURES Supports two External Temperature Diodes — ±1°C Accuracy (40°C to 80°C) — 0.125 °C Resolution — Ideality Factor Configuration — Accepts 2200pF Cap Across External Diodes for Noise Suppression — Optional Resistive Error Correction on External Diode 2 — Resistive Error Correction (up to 100 Ohms) — Beta Compensation Internal Temperature Diode — ±3°C Accuracy (0°C to 85°C) — 0.125 °C Resolution Low Power Operation — 4uA Standby Current 3.0V to 3.6V Supply Programmable Conversion Rate SMBus 2.0 Compliant — Four SMBus Address Available Reports Hotter of Two Diodes with Dual-core CPU SIMPLIFIED BLOCK DIAGRAM 1.Patents pending Local Temp Diode Switching Current SMCLK Internal Diode Register Configuration Register Status Register External Diode 1 Register External Diode 2 Register SMDATA 11-bit delta-sigma ADC DP1 DN1 DP2 DN2 Digital Mux and Byte Interlock |
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