emc2105 Standard Microsystems Corp., emc2105 Datasheet - Page 12

• Manufacturer Part Number: emc2105
• Description: Emc2105 Rpm-based High Side Fan Controller With Hardware Thermal Shutdown
• Manufacturer: Standard Microsystems Corp.

Revision 1.74 (05-08-08)
PIN NUMBER
EMC2105
17
18
19
20
The pin type are described in detail below. All pins labelled with (5V) are 5V tolerant.
All pin labelled with (2V) should not be exposed to any voltage level greater than 2V.
PIN TYPE
Power
DP3 / DN4 / VREF_T3
AIO
AO
DO
DI
AI
DN3 / DP4 / VIN3
DP2 / VREF_T2
DN2 / VIN2
PIN NAME
Table 2.1 Pin Description for EMC2105
Table 2.2 Pin Types
DATASHEET
(anode) Analog Input for External Diode 4
DP3 / DN4 - Positive (anode) analog input
VREF_T3 - Reference output for use with
DN2 - Negative (cathode) analog input for
VREF_T2 - Reference output for use with
(cathode) analog input for External Diode
VIN3 - General voltage input for use with
VIN2 - General voltage input for use with
DN3 / DP4 - Negative (cathode) analog
DP2 - Positive (anode) analog input for
input for External Diode 3 and positive
RPM-Based High Side Fan Controller with Hardware Thermal Shutdown
for External Diode 3 and negative
This pin is used to supply power or ground to the device.
Digital Input - this pin is used as a digital input. This pin is
5V tolerant.
Analog Input - this pin is used as an input for analog
signals.
Analog Output - this pin is used as an output for analog
signals.
Analog Input / Output - this pin is used as an I/O for analog
signals.
Push / Pull Digital Output - this pin is used as a digital
output. It can both source and sink current.
a thermistor and to drive VIN3
a thermistor and to drive VIN2
12
External Diode 2.
External Diode 2.
PIN FUNCTION
a thermistor
a thermistor
(default)
(default)
(default)
(default)
4
DESCRIPTION
PIN TYPE
AIO (2V)
AIO (2V)
AIO (2V)
AIO (2V)
AIO (2V)
AIO (2V)
AIO (2V)
SMSC EMC2105
AI (2V)
Datasheet