EMC2300 General Description
	Data Sheet, Application Notes, Drivers and Design Tools

Features

	3.3 Volt Operation (5 Volt Tolerant Input Buffers)
	SMBus 2.0 Compliant Interface (Fixed, Not Discoverable) with Three Slave Address Options
	Fan Control PWM (Pulse Width Modulation) Outputs (3) Fan Tachometer Inputs (4) Programmable automatic fan control based on temperature Backwards compatible with fans requiring lower frequency PWM drive High frequency fan support for 4 wire fans One fan can be controlled from as many as 3 temperature zones Fan ramp rate control for acoustic noise reduction
	Power Savings Modes Two monitoring modes: continuous or cycling (for power savings) Two low power modes when monitoring if off: Sleep and Shutdown
	Temperature Monitor Monitoring of Two Remote Thermal Diodes (+/- 3 Degrees C Accuracy) Internal Ambient Temperature Measurement Limit Comparison of All Monitored Values Interrupt Pin for out-of-limit Temperature Indication
	Voltage Monitor Monitors VCC and VCCP Limit Comparison of all Monitored Values Interrupt Pin for out-of-limit Voltage Indication
	XNOR Tree Test Mode
	16-Pin SSOP Lead-Free RoHS Compliant Package

General Description

The EMC2300 is an environmental monitoring device with automatic fan control capability. This ACPI compliant device provides hardware monitoring for up to two voltages and three thermal zones, measures the speed of up to four fans, and controls the speed of multiple DC fans using Pulse Width Modulator (PWM) outputs. High frequency and low frequency PWMs are supported.

The EMC2300 hardware monitor provides analog inputs for monitoring the processor voltage Vccp. This device has the capability to monitor its own internal VCC power supply, which may be connected to either main power (VCC) or the suspend power well (VTR).

The EMC2300 hardware monitor includes support for monitoring three thermal zones: two external and one internal. The external temperatures are measured via thermal diode inputs capable of monitoring remote devices. In addition, the EMC2300 is equipped with an ambient temperature sensor for measuring the internal temperature.

EMC2300 Data Sheet, Application Notes,
Drivers and Design Tools

Description	File Name	File Size	Date
EMC2300 Data Brief	2300db.pdf	332K	9/25/07
EMC2300 Data Sheet	2300.pdf	1445K	9/25/07
Evaluation Board
EVB-EMC2300    Schematic, PDF    Bill of Materials, PDF    Users Guide, PDF	evb6d103s_2300.pdf evb2300bom.pdf evb2300user.pdf	140K 84K 592K	8/31/05 9/21/05 12/14/06
Application Notes
Application Note 10-14: Using Temperature Sensing Diodes with EMC Devices - Remote Sensors	an1014.pdf	162K	7/18/06
Application Note 12-14: Remote Thermal Sensing Diode Selection Guide	an1214.pdf	216K	9/9/05
Other Information
Using the Adobe® Acrobat® Reader	aacrobat.html