W83627UHG Nuvoton Technology Corporation of America, W83627UHG Datasheet - Page 45

• Manufacturer Part Number: W83627UHG
• Description: IC I/O CONTROLLER 128-QFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627UHG

• Applications: PC's, PDA's
• Interface: LPC
• Voltage - Supply: 3.3V, 5V
• Package / Case: 128-XFQFN
• Mounting Type: Surface Mount
• Pin Count: 128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.3.3.2
The thermal diode D- pin is connected to AGND (pin 105), and the D+ pin is connected to the
temperature sensor pin in the W83627UHG. A 15-KΩ resistor is connected to VREF to supply the bias
current for the diode, and the 2200-pF, bypass capacitor is added to filter high-frequency noise. The
configuration registers to select a thermal diode temperature sensor and the measurement method are
found at Bank 0, Index 59h, 5Dh, and 5Eh.
Monitor Temperature from Thermal Diode (Voltage Mode)
Figure 7-6 Monitoring Temperature from Thermal Diode (Voltage Mode)
Thermal
Diode
D+
D-
R= 15K, 1%
C= 2200pF
-34-
VREF
AGND
W83627UHG
CPUTIN
(SYSTIN)
W83627UHG