8XC51FX
Thermal Impedance
All thermal impedance data is approximate for static
air conditions at 1W of power dissipation. Values will
change depending on operating conditions and ap-
plications. See the Intel Packaging Handbook (Order
No. 240800) for a description of Intel's thermal im-
pedance test methodology.
Device
All
80C51FA, 83C51FA,
8XC51FC
87C51FA, 8XC51FB
All
FA
FB
FC
i JA
45°C/W
36°C/W
45°C/W
46°C/W
97°C/W
96°C/W
87°C/W
i JC
16°C/W
13°C/W
15°C/W
16°C/W
24°C/W
24°C/W
18°C/W
DATA SHEET REVISION HISTORY
Data sheets are changed as new device information becomes available. Verify with your local Intel sales office
that you have the latest version before finalizing a design or ordering devices.
The following differences exist between this datasheet (272322-005) and the previous version (272322-004):
1. Product prefix variables are now indicated with an x.
The following differences exist between this datasheet (272322-003) and the previous version (272322-002):
1. Removed 8XC51FX-3 and 8XC51FX-20, replaced with 8XC51FX-24.
2. Included 8XC51FX-24 and 8XC51FX-33 devices.
3. 80C51FA and 83C51FA now have the same features as 87C51FA, 8XC51FB and 8XC51FC; same DC spec
used for all devices.
The following differences exist between the ``-002'' and ``-001'' version of 8XC51FX datasheet:
1. Removed 8XC51FX-L from datasheet.
2. Include VOH1 for 83C51FA (Express)/80C51FA (Express).
This 8XC51FX datasheet (272322-001) replaces the following datasheets:
87C51FA/83C51FA/80C51FA
83C51FA/80C51FA EXPRESS
87C51FA EXPRESS
87C51FA-20/-3
87C51FB/83C51FB
87C51FB-20/-3 83C51FB-20/-3
87C51FB/83C51FB EXPRESS
87C51FC/83C51FC
87C51FC/83C51FC EXPRESS
87C51FC-20/-3 83C51FC-20/-3
270258-007
270620-001
270619-001
272081-002
270563-005
272080-002
270767-002
270789-004
270903-001
272028-002
20