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EMC2113 Datasheet(PDF) 12 Page - Microchip Technology

Part # EMC2113
Description  RPM-Based Fan Controller with Multiple Temperature Zones & Hardware Thermal Shutdown
PDF  88 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

EMC2113 Datasheet(HTML) 12 Page - Microchip Technology

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RPM-Based Fan Controller with Multiple Temperature Zones & Hardware Thermal Shutdown
Datasheet
DS20005251A-page 12
 2013 Microchip Technology Inc.
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.
8
SMDATA
SMBus data input/output - requires external
pull-up resistor
DIOD (5V)
9
SMCLK
SMBus clock input - requires external pull-up
resistor
DI (5V)
10
TACH
Tachometer input for the Fan
DI (5V)
11
PWM
PWM - Open Drain PWM drive output for the
Fan (default)
OD (5V)
PWM - Push Pull PWM drive output for the
fan
DO
12
GND
Ground
Power
13
SHDN_SEL
Selects the hardware shutdown channel and
operating mode
AIO
14
TRIP_SET
Voltage input to set the Critical/Thermal
Shutdown threshold
AIO
15
DN2 / DP3
DN2 - Negative (cathode) connection for
External Diode 2
AIO
DP3 - Positive (anode) connection for
External Diode 3
AIO
16
DP2 / DN3
DP2 - Positive (anode connection for External
Diode 2
AIO
DN3 - Negative (cathode) connection for
External Diode 3
AIO
Table 3.2 Pin Types
PIN TYPE
DESCRIPTION
Power
This pin is used to supply power or ground to the device.
DI
Digital Input - this pin is used as a digital input. This pin is 5V tolerant.
AIO
Analog Input / Output - this pin is used as an I/O for analog signals.
DO
Push / Pull Digital Output - this pin is used as a digital output. It can both source
and sink current.
DIO
Digital Input / Output this pin is used as a digital I/O. It can both source and
sink current.
OD
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.
Table 3.1 Pin Description for EMC2113-1 (continued)
PIN NUMBER
PIN NAME
PIN FUNCTION
PIN TYPE



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