System modules
8.3.3 External Crystal or Resonator Requirement
Table 20. Crystal or Resonator Requirement
Characteristic
Symbol
Min
Typ
Max
Unit
Frequency of operation
fXOSC
4
8
16
MHz
8.3.4 Relaxation Oscillator Timing
Table 21. Relaxation Oscillator Electrical Specifications
Characteristic
Symbol
Min
Typ
Max
Unit
8 MHz Output Frequency1
RUN Mode
• 0°C to 105°C
• -40°C to 105°C
7.84
7.76
8
8
8.16
8.24
MHz
kHz
Standby Mode (IRC trimmed @ 8 MHz)
• -40°C to 105°C
TBD
TBD
TBD
8 MHz Frequency Variation
RUN Mode
Due to temperature
• 0°C to 105°C
+/-1.5
+/- 1.5
+/-2
+/-3
%
• -40°C to 105°C
Standby Mode
Unspecified
32 kHz Output Frequency2
RUN Mode
• -40°C to 105°C
TBD
32
TBD
+/-4
kHz
32 kHz Output Frequency Variation
RUN Mode
Due to temperature
• -40°C to 105°C
+/-2.5
%
µs
%
Stabilization Time
• 8 MHz output3
• 32 kHz output4
tstab
0.12
14.4
50
0.4
16.2
52
Output Duty Cycle
48
1. Frequency after application of 8 MHz trim
2. Frequency after application of 32 kHz trim
3. Standby to run mode transition
4. Power down to run mode transition
MC56F8458x Advance Information Data Sheet, Rev. 2, 06/2012.
Freescale Semiconductor, Inc.
37
Preliminary
General Business Information
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