Figure 7. Relationship of ΦJA Air-Flow for PGA
TS68040
Table 11. Characteristics Guaranteed
Package
Symbol
Parameter
PGA 179
CQFP 196
θJ-A
Thermal Resistance Junction-to-ambient
θJ-C
Thermal Resistance Junction-to-case
θJ-A
Thermal Resistance Junction-to-ambient
θJ-C
Thermal Resistance Junction-to-case
Value
See Figure 7
1
TBD
1
Unit
°C/W
°C/W
°C/W
°C/W
Mechanical and
Environment
The microcircuits shall meet all mechanical environmental requirements of either MIL-
STD-883 for class B devices or for Atmel standard screening.
Marking
The document where are defined the marking are identified in the related reference doc-
uments. Each microcircuit are legible and permanently marked with the following
information as minimum:
• Atmel Logo
• Manufacturer’s Part Number
• Class B Identification
• Date-code Of Inspection Lot
• ESD Identifier If Available
• Country Of Manufacturing
17
2116A–HIREL–09/02