EMC6D100/EMC6D101*
Environmental Monitoring
and Control Device with
Automatic Fan Capability
*NOTE:
The EMC6D101 is not recommended for new designs. The EMC6D102 Fan Control Device with Hardware
Monitoring and Acoustic Noise Reduction Features is the replacement device recommended for new designs.
The EMC6D100 & EMC6D101 monitor external voltages, temperatures, and fan speeds. They use this monitoring
capability to alert the system to out of limit conditions and can automatically control the speeds of multiple fans in a
PC or embedded system. The EMC6D101, available in a 24-pin SSOP package, and the EMC6D100, available in a
28-pin SSOP package, are designed to be register compatible. The EMC6D100 offers all the features of the
EMC6D101 plus additional voltage monitoring and system control features. The following is a summary of the
features offered in both packages:
Product 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
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
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
XNOR Tree test mode
Mechanical Packages
−
−
24 Pin SSOP Package (EMC6D101)
28 Pin SSOP Package (EMC6D100)
ORDERING INFORMATION
Order Number(s):
EMC61D100-DK for 28 Pin SSOP Package
EMC61D101-CK for 24 Pin SSOP Package
SMSC EMC6D100/EMC6D101
Page 1
Rev. 09-09-04
DATASHEET
SMSC [ SMSC CORPORATION ]
