General
Symbol
Description
Min.
Max.
Unit
Notes
fLPTMR_ERCL LPTMR external reference clock
—
16
MHz
K
fosc_hi_2
Oscillator crystal or resonator frequency — high
—
16
MHz
frequency mode (high range) (MCG_C2[RANGE]=1x)
fTPM
TPM asynchronous clock
—
—
8
8
MHz
MHz
fUART0
UART0 asynchronous clock
1. The frequency limitations in VLPR mode here override any frequency specification listed in the timing specification for any
other module.
5.3.2 General Switching Specifications
These general purpose specifications apply to all signals configured for GPIO, UART,
and I2C signals.
Symbol
Description
Min.
Max.
Unit
Notes
GPIO pin interrupt pulse width (digital glitch filter
disabled) — Synchronous path
1.5
—
Bus clock
cycles
1
External RESET and NMI pin interrupt pulse width —
Asynchronous path
100
16
—
—
ns
2
2
GPIO pin interrupt pulse width — Asynchronous path
Port rise and fall time
ns
3
—
36
ns
1. The greater synchronous and asynchronous timing must be met.
2. This is the shortest pulse that is guaranteed to be recognized.
3. 75 pF load
5.4 Thermal specifications
5.4.1 Thermal operating requirements
Table 9. Thermal operating requirements
Symbol
TJ
Description
Min.
Max.
125
Unit
°C
Die junction temperature
Ambient temperature
–40
–40
TA
105
°C
KL24 Sub-Family Data Sheet Data Sheet, Rev. 3, 9/19/2012.
22
Freescale Semiconductor, Inc.
FREESCALE [ Freescale ]
