PXS30 Datasheet, PDF (79/139 Pages) Freescale Semiconductor, Inc – PXS30 Microcontroller

Electrical characteristics
Table 20. Temperature sensor electrical characteristics (continued)
Symbol
Parameter
2
T_S
D Minimum sampling period
Conditions
—
Min Max Unit
4
—
µs
3.11 Main oscillator electrical characteristics
The PXS30 provides an oscillator/resonator driver.
×
Table 21. Main oscillator electrical characteristics
No. Symbol
Parameter
Conditions¹
Value
Unit
Min
Typ
Max
1 F_XOSCHS SR Oscillator frequency
—
4.0
2 T_XOSCHSSU CC Oscillator start-up time f_OSC = 4 MHz to 40 MHz
—
3
V_IH
SR Input high level CMOS Oscillator bypass mode 0.65 × V_DD
Schmitt Trigger
—
TBD
—
40.0 MHz
TBD
µs
V_DD + 0.4 V
4
V_IL
SR Input low level CMOS Oscillator bypass mode
–0.4
Schmitt Trigger
NOTES:
1 _{VDD = 3.0 V to 3.6 V, TJ = –40 to 150 °C, unless otherwise specified.}
— 0.35 × V_DD V
3.12 FMPLL electrical characteristics
Table 22. FMPLL electrical characteristics
Symbol
Parameter
Conditions
f_{REF_CRYSTAL} D FMPLL reference frequency
f_{REF_EXT}
range¹
f_{PLL_IN} D Phase detector input frequency
range (after pre-divider)
Crystal reference
—
f_FMPLLOUT D Clock frequency range in normal See Chapter 30,
mode
“Frequency-Modulated
Phase-Locked Loop (FMPLL),” in
the PXS30 Reference Manual
(PXS30RM) for more details on
PLL configuration.
f_FREE
f_sys
t_CYC
f_LORL
f_LORH
f_SCM
P Free running frequency
D On-chip FMPLL frequency²
Measured using clock division
(typically 16)
—
D System clock period
—
D Loss of reference frequency
window²
Lower limit
Upper limit
D Self-clocked mode frequency^3,4
—
Min
TBD
TBD
16
TBD
TBD
—
TBD
TBD
TBD
Typ Max Unit
— TBD MHz
— TBD MHz
— 256 MHz
— TBD MHz
— TBD MHz
— 1 / f_sys ns
— TBD MHz
— TBD
— TBD MHz
PXS30 Microcontroller Data Sheet, Rev. 1
Freescale Semiconductor
Preliminary—Subject to Change Without Notice
79