PALCE20V8H-25PC/4 Lattice Semiconductor, PALCE20V8H-25PC/4 Datasheet - Page 25

• Manufacturer Part Number: PALCE20V8H-25PC/4
• Description: EE CMOS 24-Pin Universal Programmable Array Logic
• Manufacturer: Lattice Semiconductor

TYPICAL THERMAL CHARACTERISTICS
Measured at 25 C ambient. These parameters are not tested.
Plastic
The data listed for plastic
heat-flow paths in plastic-encapsulated devices are complex, making the
age surface. Tests indicate this measurement reference point is directly below the die-attach area on the bottom center of the package.
Furthermore,
perature. Therefore, the measurements can only be used in a similar environment.
jc
j a
j m a
Parameter
Symbol
jc
Considerations
jc
Thermal impedance, junction to case
Thermal impedance, junction to ambient
Thermal impedance, junction to ambient with air flow
tests on packages are performed in a constant-temperature bath, keeping the package surface at a constant tem-
jc
are for reference only and are not recommended for use in calculating junction temperatures. The
Parameter Description
PALCE20V8 Family
200 lfpm air
400 lfpm air
600 lfpm air
800 lfpm air
jc
measurement relative to a specific location on the pack-
PDID
19
73
61
53
50
47
Typ
PLCC
19
55
45
41
38
36
Unit
C/W
C/W
C/W
C/W
C/W
C/W
25