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MC9S08QE16CLC Datasheet, PDF (321/350 Pages) Freescale Semiconductor, Inc – Low-power wireless applications, Gas, water and heater meters | |||
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Appendix A Electrical Characteristics and Timing Specifications
A.9.1 ICG Frequency Specifications
Table A-11. ICG Frequency Specifications
(VDDA = VDDA (min) to VDDA (max), Temperature Range = â40 to 125ï°C Ambient)
Num
C
Characteristic
Symbol
Min
Typ1
Max
Unit
Oscillator crystal or resonator (REFS = 1)
(Fundamental mode crystal or ceramic resonator)
Low range
flo
32
â
100
kHz
1
T
High range
High Gain, FBE (HGO = 1,CLKS = 10)
fhi_byp
1
â
16
MHz
High Gain, FEE (HGO = 1,CLKS = 11)
fhi_eng
2
â
10
MHz
Low Power, FBE (HGO = 0, CLKS = 10)
flp_byp
1
8
MHz
Low Power, FEE (HGO = 0, CLKS = 11)
flp_eng
2
8
MHz
Input clock frequency (CLKS = 11, REFS = 0)
2
T
Low range
High range
flo
fhi_eng
32
â
100
kHz
2
â
10
MHz
3
T Input clock frequency (CLKS = 10, REFS = 0)
fExtal
0
â
40
MHz
4
T Internal reference frequency (untrimmed)
fICGIRCLK
182.25
243
303.75
kHz
5
T Duty cycle of input clock (REFS = 0)
Output clock ICGOUT frequencyï
CLKS = 10, REFS = 0ï
6
P
All other cases
tdc
40
â
60
%
fICGOUT
fExtal (min)
flo (min)
â
â
fExtal (max)
fICGDCLKmax(
MHz
max)
7
T Minimum DCO clock (ICGDCLK) frequency
8
T Maximum DCO clock (ICGDCLK) frequency
9
P Self-clock mode (ICGOUT) frequency 2
10
T Self-clock mode reset (ICGOUT) frequency
Loss of reference frequency 3ï
11
T
Low rangeï
High range
12
T Loss of DCO frequency 4
Crystal start-up time 5, 6ï
13
T
Low rangeï
High range
FLL lock time , 7ï
14
T
Low rangeï
High range
fICGDCLKmin
8
â
MHz
fICGDCLKmax
â
40
MHz
fSelf
fICGDCLKmin
fICGDCLKmax MHz
fSelf_reset
5.5
8
10.5
MHz
fLOR
fLOD
t
CSTL
t
CSTH
tLockl
tLockh
5
50
25
500
kHz
0.5
1.5
MHz
â
430
â
â
4
â
ms
â
2
ms
â
2
15
T FLL frequency unlock range
nUnlock
â4*N
16
T FLL frequency lock range
nLock
17
T
ICGOUT period jitter, , 8 measured at fICGOUT Maxï
Long term jitter (averaged over 2 ms interval)
CJitter
â2*N
â
Internal oscillator deviation from trimmed
18
P
frequency9ï
VDD = 2.7 â 5.5 V, (constant temperature)ï
VDD = 5.0 V ï±10%, â40ï° C to 125ï°C
ACCint
â
â
ï± 0.5
ï±0.5
1 Typical values are based on characterization data at VDD = 5.0V, 25ï°C unless otherwise stated.
2 Self-clocked mode frequency is the frequency that the DCO generates when the FLL is open-loop.
4*N
counts
2*N
counts
0.2
% fICG
ï±2
ï±2
%
MC9S08AC60 Series Data Sheet, Rev. 3
Freescale Semiconductor
321
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