Datasheet

MAX31782
System Management Microcontroller
8
Pin Description (continued)
PIN NAME FUNCTION
20 PWM.3 PWM Output No. 3. When disabled, this pin can be used as GPIO.
22 REG18
Bypass REG18 to V
SS
with 1FF and high-frequency 10nF capacitors. Do not use for external
circuitry.
23 TACH.3 Tachometer Input No. 3. When disabled, this pin can be used as GPIO.
24 PWM.2 PWM Output No. 2. When disabled, this pin can be used as GPIO.
25 TACH.2 Tachometer Input No. 2. When disabled, this pin can be used as GPIO.
26 PWM.1 PWM Output No. 1. When disabled, this pin can be used as GPIO.
27 TACH.1 Tachometer Input No. 1. When disabled, this pin can be used as GPIO.
28 PWM.0 PWM Output No. 0. When disabled, this pin can be used as GPIO.
29 REG25
Bypass REG25 to V
SS
with 1FF and high-frequency 10nF capacitors. Do not use for external
circuitry.
30 TACH.0 Tachometer Input No. 0. When disabled, this pin can be used as GPIO.
31 SDA Slave I
2
C-Compatible Bidirectional Data Line. When disabled, this pin can be used as GPIO.
32 SCL Slave I
2
C-Compatible Clock. When disabled, this pin can be used as GPIO.
33 P6.4/TBA Programmable I/O Pin. Alternate function: Timer/Counter TBA
34 P6.3/TDO Programmable I/O Pin. Alternate function: JTAG TDO
35 P6.2/TMS/TBB Programmable I/O Pin. Alternate functions: Timer/Counter TBB, JTAG TMS
37 P6.1/TDI Programmable I/O Pin. Alternate function: JTAG TDI
38 P6.0/TCK Programmable I/O Pin. Alternate function: JTAG TCK
39 AD5N Ground Reference for ADC.5 Voltage Measurement
40 AD5P ADC Voltage-Sense Input, Measurement Relative to AD5N
— EP Exposed Pad. Not electrically connected to IC. Connect to V
SS
.