Datasheet

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. 75 pF load
5. 15 pF load
6. 25 pF load
7. 15 pF load
5.4 Thermal specifications
5.4.1 Thermal operating requirements
Table 11. Thermal operating requirements
Symbol Description Min. Max. Unit
T
J
Die junction temperature –40 125 °C
T
A
Ambient temperature –40 105 °C
5.4.2 Thermal attributes
Board type Symbol Description 256 MAPBGA Unit Notes
Single-layer (1s) R
θJA
Thermal
resistance, junction
to ambient (natural
convection)
43 °C/W 1, 2
Four-layer (2s2p) R
θJA
Thermal
resistance, junction
to ambient (natural
convection)
28 °C/W 1,2, 3
Single-layer (1s) R
θJMA
Thermal
resistance, junction
to ambient (200 ft./
min. air speed)
36 °C/W 1,3
Four-layer (2s2p) R
θJMA
Thermal
resistance, junction
to ambient (200 ft./
min. air speed)
25 °C/W 1,3
— R
θJB
Thermal
resistance, junction
to board
17 °C/W 4
Table continues on the next page...
General
K70 Sub-Family Data Sheet, Rev. 5, 10/2013.
26 Freescale Semiconductor, Inc.