K22P80M50SF4 Datasheet, PDF (20/60 Pages) Freescale Semiconductor, Inc – K22 Sub-Family Data Sheet

General
1. This is the minimum pulse width that is guaranteed to pass through the pin synchronization circuitry. Shorter pulses may or
may not be recognized. In Stop, VLPS, LLS, and VLLSx modes, the synchronizer is bypassed so shorter pulses can be
recognized in that case.
2. The greater synchronous and asynchronous timing must be met.
3. This is the minimum pulse width that is guaranteed to be recognized as a pin interrupt request in Stop, VLPS, LLS, and
VLLSx modes.
4. 75pF load
5. 15pF load
5.4 Thermal specifications
5.4.1 Thermal operating requirements
Table 11. Thermal operating requirements
Symbol
T_J
T_A
Description
Die junction temperature
Ambient temperature
Min.
Max.
Unit
–40
125
°C
–40
105
°C
5.4.2 Thermal attributes
Board type
Single-layer (1s)
Symbol
R_θJA
Four-layer (2s2p) R_θJA
Single-layer (1s) R_θJMA
Four-layer (2s2p) R_θJMA
—
R_θJB
—
R_θJC
Description
80 LQFP
Thermal
50
resistance, junction
to ambient (natural
convection)
Thermal
35
resistance, junction
to ambient (natural
convection)
Thermal
39
resistance, junction
to ambient (200 ft./
min. air speed)
Thermal
29
resistance, junction
to ambient (200 ft./
min. air speed)
Thermal
19
resistance, junction
to board
Thermal
8
resistance, junction
to case
Table continues on the next page...
Unit
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
Notes
1, 2
1, 3
1,3
1,3
4
5
K22 Sub-Family Data Sheet Data Sheet, Rev. 3, 08/2012.
20
Freescale Semiconductor, Inc.