MC68HC908AS60ACFN FREESCALE [Freescale Semiconductor, Inc], MC68HC908AS60ACFN Datasheet - Page 373

• Manufacturer Part Number: MC68HC908AS60ACFN
• Description: M68HC08 Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

28.1.10 CGM Acquisition/Lock Time Information
1. V
2. Conditions for typical and maximum values are for Run mode with f
3. Guaranteed by not tested. Refer to
Freescale Semiconductor
Manual Mode Time to Stable
Manual Stable to Lock Time
Manual Acquisition Time
Tracking Mode Entry Frequency
Tolerance
Acquisition Mode Entry
Frequency Tolerance
LOCK Entry Freq. Tolerance
LOCK Exit Freq. Tolerance
Reference Cycles per
Acquisition Mode Measurement
Reference Cycles per Tracking
Mode Measurement
Automatic Mode Time to Stable
Automatic Stable to Lock Time
Automatic Lock Time
PLL Jitter, Deviation of Average
Bus Frequency over 2 ms
K value for automatic mode
time to stable
K value
V
DD
DD
= 5.0 Vdc ± 0.5 V, V
= 5 Vdc.
Description
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
(1)
SS
(3)
= 0 Vdc, T
Chapter 10 Clock Generator Module (CGM)
A
Symbol
D
= –40°C to T
t
t
D
D
D
n
n
t
LOCK
t
LOCK
K
K
ACQ
LOCK
ACQ
t
t
ACQ
TRK
TRK
UNT
UNL
AL
AL
acq
trk
n
n
A
ACQ
TRK
(MAX), unless otherwise noted.
± 6.3
± 0.9
Min
—
—
—
—
—
—
—
—
0
0
0
/f
/f
XCLK
XCLK
CGMXCLK
(f
(f
CGMXCLK
CGMXCLK
(f
(f
(4 x V
(8 x V
(4 x V
XCLK
XCLK
(8 x V
= 8 MHz, f
t
ACQ
Typ
0.004
0.65
128
0.2
32
for guidance on the use of the PLL.
—
—
—
—
—
x K
x K
DDA
DDA
DDA
+t
DDA
(2)
x K
x K
AL
ACQ)
TRK
) /
) /
) /
) /
BUSDES
ACQ)
TRK
)
)
= 8 MHz, N = 4, L = 7, discharged C
x (.025%)
± (f
Max
x (N/4)
± 3.6
± 7.2
± 0.9
± 1.8
25
CRYS
—
—
—
—
—
—
—
—
(2)
)
Electrical Specifications
Unit
ms
—
—
—
—
%
%
%
%
%
s
s
s
s
s
If C
Correctly
If C
Correctly
If C
Correctly
If C
Correctly
N = VCO Freq.
Mult.
F
F
F
F
Notes
Chosen
Chosen
Chosen
Chosen
F
= 15 nF,
373