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EMC6700A, EMC6D010-CK, EMC6D101

Table of contents:
Info of EMC6700A
Info of EMC6D010-CK
Info of EMC6D101

EMC6700A, EMC6D010-CK, EMC6D101 Selling Leads, Datasheet

MFG:SEC Package Cooled:PDIP42 D/C:02+

EMC6700A, EMC6D010-CK, EMC6D101 Datasheet download

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Part Number: EMC6700A

MFG: SEC

Package Cooled: PDIP42

D/C: 02+

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EMC6D101 General Description

The EMC6D100 & EMC6D101 are environmental monitoring and control devices with automatic fan control capability for PCs and embedded systems. These ACPI compliant devices provide hardware monitoring for up to eight voltages and three thermal zones, measure the speed of up to four fans, and control the speed of multiple DC fans using three Pulse Width Modulators (PWM). Note that it is possible to control more than three fans by connecting two fans to one PWM output.

The EMC6D101 is available in a 24-pin SSOP package and the EMC6D100 is available in a 28-pin SSOP package. These devices are designed to be register compatible. The EMC6D100 offers all the features of the EMC6D101 plus additional voltage monitoring and system control features.

The EMC6D100 & EMC6D101 hardware monitoring provides analog inputs for monitoring external voltages of +2.5V, +5V, +12V and Vccp. These devices have the capability to monitor their own internal VCC or VSB. In addition to monitoring the processor voltage, VID inputs are available to identify the voltage specification. The EMC6D100 has the added functionality of monitoring +3.3V, +1.5V and +1.8V. External components are not required for voltage scaling or similar treatment.

These devices include 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, they are equipped with an ambient temperature sensor for measuring the internal temperature. Pulse Width Modulators (PWM) control the speed of the fans by varying the output duty cycle of the PWM. The speed of each fan is monitored by a Fan Tachometer input. The measured values are compared to values stored in Limit Registers to detect if a fan has stalled or seized.

Fan speed may be under host software control or automatic control of the EMC6D100 & EMC6D101. In host control mode, the host software continuously monitors temperature and fan speed registers, makes decisions as to desired fan speed and sets the PWM's to drive the required fan speed. The EMC6D100 has an interrupt pin (INT#), which may be used to interrupt the host on out-of-limit temperature or voltage condition enabling an ACPI response as opposed to the host software continuously monitoring status. In auto "zone" mode, the EMC6D100 & EMC6D101 logic continuously monitors the temperature and fan speeds and adjusts speeds without intervention from the host CPU. Fan speed is adjusted according to an algorithm using the temperature measured in the selected zone, the high and low limits set by the user, and the current fan speed.

The EMC6D100 & EMC6D101 registers are accessible through the SMBus interface in both "standby mode" and "active mode".

EMC6D101 Maximum Ratings

Operating Temperature Range ..............................................................................................0 to +70
Storage Temperature Range .......................................................................................... -55°to +150
Lead Temperature Range ........................................................................Refer to JEDEC Spec. J-STD-020
Maximum Vcc................................................................................................................................ +5.5V
Positive Voltage on any pin (except for analog inputs), with respect to Ground............................ Vcc+0.3V
Negative Voltage on any pin (except for analog inputs), with respect to Ground ................................ -0.3V

EMC6D101 Features

·3.3 Volt Operation (5 Volt Tolerant Input Buffers)
·SMBus 2.0 compliant interface
· Fan Control
− PWM (Pulse width Modulation) Outputs (3)
− Fan Tachometer Inputs (4)
− Programmable automatic fan control based on temperature
·Temperature Monitor
− Monitoring of Two Remote Thermal Diodes
− (+/- 3 deg. C accuracy)
− Internal Ambient Temperature Measurement
− Limit Comparison of all Monitored Values
− Interrupt Pin for out-of-limit Temperature Indication (EMC6D100 only)
− Configurable offset for internal or external temperature channels 􀂃
·Voltage Monitor
− Monitor Power supplies (+2.5V, +5V, +12V, Vccp,and VCC)
− EMC6D100 monitors additional power supplies (+3.3V, +1.5V, +1.8V)
− Limit Comparison of all Monitored Values
− Interrupt Pin for out-of-limit Voltage Indication (EMC6D100 only)
− 5 VID (Voltage Identification) inputs
·XNOR Tree test mode
·Mechanical Packages
− 24 Pin SSOP Package (EMC6D101)
− 28 Pin SSOP Package (EMC6D100)

EMC6D101 Connection Diagram

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