MC68HC08AZ60A Datasheet, PDF (457/480 Pages) Motorola, Inc – Microcontrollers

Electrical Specifications
CGM Acquisition/Lock Time Information
25.11 CGM Acquisition/Lock Time Information
Description
Symbol
Min
Typ
Max Unit
Notes
Manual Mode Time to Stable t_ACQ
—
(8 x V_DDA) /
(f_CGMXCLK x K_ACQ)
—
s ^{If CF Chosen}
Correctly
Manual Stable to Lock Time
t_AL
—
(4 x V_DDA) /
(f_CGMXCLK x K_TRK)
—
s ^{If CF Chosen}
Correctly
Manual Acquisition Time
t_LOCK
—
t_ACQ+t_AL
—
s
Tracking Mode Entry
Frequency Tolerance
D_TRK
0
—
± 3.6
%
Acquisition Mode Entry
Frequency Tolerance
D_UNT
± 6.3
—
± 7.2
%
LOCK Entry Freq. Tolerance D_LOCK
0
—
± 0.9
%
LOCK Exit Freq. Tolerance
D_UNL
± 0.9
—
± 1.8
%
Reference Cycles per
Acquisition Mode
Measurement
n_ACQ
—
32
—
—
Reference Cycles per
Tracking Mode
Measurement
n_TRK
—
128
—
—
Automatic Mode Time
to Stable
t_ACQ
n_ACQ/f_CGM
XCLK
(8 x V_DDA) /
(f_CGMXCLK x K_ACQ)
s ^{If CF Chosen}
Correctly
Automatic Stable to Lock
Time
t_AL
n_TRK/f_CGM
XCLK
(4 x V_DDA) /
(f_CGMXCLK x K_TRK)
—
s ^{If CF Chosen}
Correctly
Automatic Lock Time
t_LOCK
—
0.65
25
ms
PLL Jitter, Deviation of
Average Bus Frequency
over 2 ms (note 1)
0
—
± (f_CRYS)
x (.025%)
%
N = VCO
Freq. Mult.
x (N/4)
K value for automatic mode
time to stable
K_acq
—
0.2
—
—
K value
K_trk
—
0.004
—
—
NOTES:
1. Guaranteed but not tested.
2. V_DD = 5.0 Vdc ± 0.5 V, V_SS = 0 Vdc, T_A = -40C to T_A (MAX), unless otherwise noted.
3. Conditions for typical and maximum values are for Run mode with f_CGMXCLK = 8MHz, f_BUSDES = 8MHz, N = 4, L = 7,
discharged C_F = 15 nF, V_DD = 5Vdc.
4. Refer to Phase-Locked Loop (PLL) section for guidance on the use of the PLL.
MC68HC08AZ60A — Rev 0.0
MOTOROLA
Electrical Specifications
Advance Information
457