w83c554f Winbond Electronics Corp America, w83c554f Datasheet - Page 154

• Manufacturer Part Number: w83c554f
• Description: System I/o Controller With Pci Arbiter & Ultradma/33 Ide Controller
• Manufacturer: Winbond Electronics Corp America

W83C554F
Theta JA = Thermal Resistance between Junction and Ambient for the 208PQFP.
Theta JA = 43.13
Theta JA = (T
Where P
WINBOND ELECTRONICS CORP. AMERICA
8.0 THERMAL INFORMATION
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
152