w83c553f Winbond Electronics Corp America, w83c553f Datasheet - Page 157

• Manufacturer Part Number: w83c553f
• Description: System I/o Controller With Pci Arbiter
• Manufacturer: Winbond Electronics Corp America

W83C553F
8.0 Thermal Information
Theta JA = Thermal Resistance between Junction and Ambient for the 208PQFP.
Theta JA = 43.13
Theta JA = (T
Where P
WINBOND SYSTEMS LABORATORY
chip
35.25
= Power dissipation on the chip (in watts)
30.90
junction
0
C/W(air velocity = 1 M/s)
0
0
C/W
C/W
- T
ambient
) / P
(air velocity = 0 M/s)
(air velocity = 2M/s)
chip
;
Thermal Information
154