emc2104 Standard Microsystems Corp., emc2104 Datasheet - Page 9

• Manufacturer Part Number: emc2104
• Description: Emc2104 Dual Rpm-based Pwm Fan Controller With Hardware Thermal Shutdown
• Manufacturer: Standard Microsystems Corp.

Dual RPM-Based PWM Fan Controller with Hardware Thermal Shutdown
Datasheet
Chapter 1 Block Diagram
SMSC EMC2104
TRIP_SET*
DP3 / DN4*
DN3 / DP4*
CLK_IN*
TACH2*
PWM2*
TACH1
PWM1
DP1
DN1
DP2
DN2
External
Internal
Diodes
parallel
Drivers
Temp
Temp
Diode
Tachs
diode
PWM
Anti-
Analog
Mux
Figure 1.1 EMC2104 Block Diagram
* denotes multiple pin functions
DATASHEET
Configuration
Table / RPM
11 bit Σ Δ
Lookup
Control
ADC
9
Shutdown
Thermal
Logic
Temp Limit
Temp Registers
Registers
Reference
Protocol
SMBus
GPIOs
Revision 1.74 (05-08-08)
Slave
SMCLK
SMDATA
ALERT#
GPIO1*
GPIO2*
GPIO3*
VREF*