PALCE22V10 LATTICE [Lattice Semiconductor], PALCE22V10 Datasheet - Page 32

• Manufacturer Part Number: PALCE22V10
• Description: 24-Pin EE CMOS (Zero Power) Versatile PAL Device
• Manufacturer: LATTICE [Lattice Semiconductor]

TYPICAL THERMAL CHARACTERISTICS
PALCE22V10
Measured at 25°C ambient. These parameters are not tested.
Plastic jc Considerations
The data listed for plastic jc are for reference only and are not recommended for use in calculating junction temperatures. The
heat-flow paths in plastic-encapsulated devices are complex, making the jc measurement relative to a specific location on the pack-
age surface. Tests indicate this measurement reference point is directly below the die-attach area on the bottom center of the package.
Furthermore, jc tests on packages are performed in a constant-temperature bath, keeping the package surface at a constant tem-
perature. Therefore, the measurements can only be used in a similar environment.
32
jc
ja
jma
Parameter
Symbol
Thermal impedance, junction to case
Thermal impedance, junction to ambient
Thermal impedance, junction to ambient with air flow
Parameter Description
PALCE22V10 and PALCE22V10Z Families
200 lfpm air
400 lfpm air
600 lfpm air
800 lfpm air
SKINNY DIP
66
61
55
52
20
73
Typ
PLCC
18
55
48
43
40
37
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
Unit