EMC2113 Datasheet, PDF (12/88 Pages) SMSC Corporation – RPM-Based Fan Controller with Multiple Temperature Zones & Hardware Thermal Shutdown

PIN NUMBER
8
9
10
11
12
13
14
15
16
RPM-Based Fan Controller with Multiple Temperature Zones & Hardware Thermal Shutdown
Datasheet
Table 3.1 Pin Description for EMC2113-1 (continued)
PIN NAME
PIN FUNCTION
PIN TYPE
SMDATA
SMCLK
TACH
PWM
GND
SHDN_SEL
TRIP_SET
DN2 / DP3
DP2 / DN3
SMBus data input/output - requires external
pull-up resistor
SMBus clock input - requires external pull-up
resistor
Tachometer input for the Fan
PWM - Open Drain PWM drive output for the
Fan (default)
PWM - Push Pull PWM drive output for the
fan
Ground
Selects the hardware shutdown channel and
operating mode
Voltage input to set the Critical/Thermal
Shutdown threshold
DN2 - Negative (cathode) connection for
External Diode 2
DP3 - Positive (anode) connection for
External Diode 3
DP2 - Positive (anode connection for External
Diode 2
DN3 - Negative (cathode) connection for
External Diode 3
DIOD (5V)
DI (5V)
DI (5V)
OD (5V)
DO
Power
AIO
AIO
AIO
AIO
AIO
AIO
The pin types are described in detail below. All pins labelled with (5V) are 5V tolerant.
Note: For all 5V tolerant pins that require a pull-up resistor, the pull-up voltage cannot exceed 3.6V
when the device is unpowered.
PIN TYPE
Power
DI
AIO
DO
DIO
OD
Table 3.2 Pin Types
DESCRIPTION
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 / 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.
Digital Input / Output this pin is used as a digital I/O. It can both source and
sink current.
Open Drain Digital Output - this pin is used as a digital output. It is open drain
and requires a pull-up resistor. This pin is 5V tolerant.
DS20005251A-page 12
 2013 Microchip Technology Inc.