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EMC2104 Fiches technique(PDF) 11 Page - SMSC Corporation

No de pièce EMC2104
Description  Dual RPM-Based PWM Fan Controller with Hardware Thermal Shutdown
PDF  101 Pages
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Fabricant  SMSC [SMSC Corporation]
Site Internet  http://www.smsc.com
Logo SMSC - SMSC Corporation

EMC2104 Fiches technique(HTML) 11 Page - SMSC Corporation

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Dual RPM-Based PWM Fan Controller with Hardware Thermal Shutdown
Datasheet
SMSC EMC2104
11
Revision 1.74 (05-08-08)
DATASHEET
Table 2.1 Pin Description for EMC2104
PIN NUMBER
EMC2104
PIN NAME
PIN FUNCTION
PIN TYPE
1
DN1 / VIN1
DN1 - Negative (cathode) analog input for
External Diode 1 (default)
AIO (2V)
VIN1 - General voltage input for use with
a thermistor
AI (2V)
2
DP1 / VREF_T1
DP1 - Positive (anode) analog input for
External Diode 1 (default)
AIO (2V)
VREF_T1 - Reference output for use with
a thermistor and to drive VIN1
AO (2V)
3
GND
Ground connection
Power
4
VDD
Power Supply
Power
5ALERT#
Active low interrupt - requires external
pull-up resistor.
OD (5V)
6
CLK_IN / GPIO1
CLK_IN - 32.768KHz clock input.
DI (5V)
GPI1 - General Purpose Input
(default)
DI (5V)
GPO1 - General Purpose push/ pull
Output
DI (5V)
GPO1 - General Purpose open drain
Output.
DI (5V)
7
SYS_SHDN#
Active low Critical System Shutdown
output
OD (5V)
8SMDATA
SMBus data input/output - requires
external pull-up resistor
DIOD (5V)
9SMCLK
SMBus clock input - requires external
pull-up resistor
DIOD (5V)
10
PWM2 / GPIO3
PWM2 - Open Drain PWM drive output for
Fan 2 (default)
OD (5V)
PWM2 - Push-Pull PWM drive output for
Fan 2
DO
GPI3 - General Purpose Input
(software programmed)
DI (5V)
GPO3 - General Purpose push-pull
Output
DO
GPO3 - General Purpose open drain
Output
OD (5V)



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