s908az32ag2cfue Freescale Semiconductor, Inc, s908az32ag2cfue Datasheet - Page 305

• Manufacturer Part Number: s908az32ag2cfue
• Description: M68hc08 Microcontrollers 8-bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

25.1.10 CGM Acquisition/Lock Time Information
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 Frequency Tolerance
LOCK Exit Frequency 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
1. V
2. Conditions for typical and maximum values are for Run mode with f
3. Guaranteed but not tested. Refer to
discharged C
DD
= 5.0 Vdc ± 0.5 V, V
Description
F
= 15 nF, V
(3)
(1)
SS
DD
= 0 Vdc, T
= 5Vdc.
Chapter 8 Clock Generator Module (CGM)
Symbol
D
t
D
t
D
D
n
n
t
t
A
LOCK
LOCK
K
LOCK
K
MC68HC908AZ32A Data Sheet, Rev. 2
ACQ
ACQ
t
t
ACQ
UNT
TRK
TRK
UNL
AL
AL
acq
= -40C to T
trk
n
n
ACQ
TRK
± 6.3
± 0.9
A
Min
—
—
—
—
—
—
—
—
0
0
0
(MAX), unless otherwise noted.
/f
/f
XCLK
XCLK
(f
(f
CGMXCLK
CGMXCLK
(f
(f
(4 x V
(8 x V
XCLK
(4 x V
XCLK
(8 x V
CGMXCLK
t
ACQ
Typ
0.004
0.65
128
0.2
32
—
—
—
—
—
x K
x K
DDA
DDA
DDA
+t
DDA
(2)
x K
x K
AL
ACQ)
TRK
) /
) /
) /
) /
= 8MHz, f
ACQ)
TRK
)
for guidance on the use of the PLL.
)
x (.025%)
± (f
Max
x (N/4)
BUSDES
± 3.6
± 7.2
± 0.9
± 1.8
25
CRYS
—
—
—
—
—
—
—
—
(2)
)
= 8MHz, N = 4, L = 7,
Electrical Specifications
Unit
ms
Hz
—
—
—
—
%
%
%
%
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
305