
Document Number: 001-52469 Rev. *H Page 37 of 50
Figure 15. 28-Pin (210-Mil) SSOP
Thermal Impedances
Capacitance on Crystal Pins
Solder Reflow Specifications
Table 35 shows the solder reflow temperature limits that must
not be exceeded.
Table 33. Thermal Impedances per Package
Package Typical
JA
[24]
20-pin SSOP 117 °C/W
28-pin SSOP 101 °C/W
Table 34. Capacitance on Crystal Pins
Package Package Capacitance
20-pin SSOP 2.6 pF
28-pin SSOP 2.8 pF
Table 35. Solder Reflow Specifications
Package
Maximum Peak
Temperature (T
C
)
Maximum Time
above T
C
– 5 °C
20-Pin SSOP 260 C 30 seconds
28-Pin SSOP 260 C 30 seconds
Note
24. T
J
= T
A
+ Power ×
JA
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