EMC2106_09 Datasheet, PDF (12/106 Pages) SMSC Corporation – Dual RPM-Based Linear Fan Controller with Hardware Thermal Shutdown

PIN NUMBER
EMC2106
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Dual RPM-Based Linear Fan Controller with Hardware Thermal Shutdown
Datasheet
Table 2.1 Pin Description for EMC2106 (continued)
PIN NAME
SYS_SHDN#
SMDATA
SMCLK
GPIO6
PWM2 / GPIO3
TACH2 / GPIO2
TACH1
OVERT1# / PWM1
FAN_OUT
FAN_OUT
VDD_5V
VDD_5V
PIN FUNCTION
Active low Critical System Shutdown
output
SMBus data input/output - requires
external pull-up resistor
SMBus clock input - requires external
pull-up resistor
GPI6 - General Purpose Input
(default)
GPO6 - General Purpose push/ pull
Output
GPO6 - General Purpose open drain
Output.)
PWM2 - Open Drain PWM drive output for
Fan 2 (default)
PWM2 - Push-Pull PWM drive output for
Fan 2
GPI3 - General Purpose Input
GPO3 - General Purpose push-pull
Output
GPO3 - General Purpose open drain
Output
TACH2 - Tachometer input for Fan 2
(default)
GPI2 - General Purpose Input
GPO2 - General Purpose push-pull
Output
GPO2 - General Purpose open drain
Output
Tachometer input for Fan 1
OVERT1# - Active low interrupt for the
External Diode 1 channel
(default)
PWM1 - Open Drain PWM drive output for
Fan 1
PWM1 - Push-Pull PWM drive output for
Fan 1
High Side Fan Driver Output
High Side Fan Driver Output
Supply for High Side Fan Driver
Supply for High Side Fan Driver
PIN TYPE
OD (5V)
DIOD (5V)
DIOD (5V)
DI (5V)
OD (5V)
DO
OD (5V)
DO
DI (5V)
DO
OD (5V)
DI (5V)
DI (5V)
DO
OD (5V)
DI (5V)
OD (5V)
OD (5V)
DO
Power
Power
Power
Power
Revision 1.78 (04-21-09)
12
DATASHEET
SMSC EMC2106