XC908AS60ACFU Motorola Semiconductor Products, XC908AS60ACFU Datasheet - Page 541
XC908AS60ACFU
Manufacturer Part Number
XC908AS60ACFU
Description
MC68HC908AZ60A, MC68HC908AS60A Hcmos Microcontroller Unit Technical Data
Manufacturer
Motorola Semiconductor Products
Datasheet
1.XC908AS60ACFU.pdf
(576 pages)
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28.2.10 CGM Acquisition/Lock Time Information
MC68HC908AZ60A — Rev 2.0
MOTOROLA
Manual Mode Time to Stable
Manual Stable to Lock Time
Manual Acquisition Time
Tracking Mode Entry
Acquisition Mode Entry
LOCK Entry Freq. Tolerance
LOCK Exit Freq. Tolerance
Reference Cycles per
Reference Cycles per
Automatic Mode Time
Automatic Stable to Lock
Automatic Lock Time
PLL Jitter, Deviation of
K value for automatic mode
K value
Frequency Tolerance
Frequency Tolerance
Acquisition Mode
Measurement
Tracking Mode
Measurement
to Stable
Time
Average Bus Frequency
over 2 ms (note 1)
time to stable
NOTES:
1. Guaranteed but not tested.
2. V
3. Conditions for typical and maximum values are for Run mode with f
4. Refer to Phase-Locked Loop (PLL) section for guidance on the use of the PLL.
discharged C
DD
Description
= 5.0 Vdc ± 0.5 V, V
F
= 15 nF, V
SS
DD
= 0 Vdc, T
= 5Vdc.
Symbol
D
t
t
D
D
D
n
n
t
t
LOCK
LOCK
K
K
ACQ
LOCK
ACQ
t
t
ACQ
TRK
TRK
UNT
UNL
AL
AL
acq
trk
A
= -40C to T
n
n
Electrical Specifications
ACQ
TRK
± 6.3
± 0.9
Min
—
—
—
—
—
—
—
—
0
0
/f
0
/f
XCLK
XCLK
A
(MAX), unless otherwise noted.
(f
(f
CGMXCLK
CGMXCLK
(f
(f
(4 x V
(8 x V
(4 x V
XCLK
XCLK
(8 x V
t
ACQ
0.004
0.65
Typ
128
0.2
32
—
—
—
—
—
CGMXCLK
x K
x K
DDA
DDA
DDA
+t
DDA
x K
x K
AL
ACQ)
TRK
) /
) /
) /
) /
ACQ)
TRK
)
= 8MHz, f
)
x (.025%)
± (f
x (N/4)
± 3.6
± 7.2
± 0.9
± 1.8
Max
25
CRYS
—
—
—
—
—
—
—
—
BUSDES
)
Electrical Specifications
Electrical Specifications
= 8MHz, N = 4, L = 7,
Unit
ms
—
—
—
—
%
%
%
%
%
s
s
s
s
s
Technical Data
If C
If C
If C
If C
N = VCO
Correctly
Correctly
Correctly
Correctly
Freq. Mult.
F
F
F
F
Notes
Chosen
Chosen
Chosen
Chosen
541
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