NXP Semiconductors MC68CK16Z1, User Manual

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M68HC16 Z SERIES ELECTRICAL CHARACTERISTICS
USER’S MANUAL A-7
Table A-8 16.78-MHz Clock Control Timing
(V
DD
and V
DDSYN
= 5.0 Vdc
±
10%, V
SS
= 0 Vdc, T
A
= T
L
to T
H
)
Num Characteristic Symbol Minimum Maximum Unit
1
PLL Reference Frequency Range
1
MC68HC16Z1
MC68HC16Z2
MC68HC16Z3
NOTES:
1. Refer to notes in Table A-10 .
f
ref
25
3.2
3.2
50
4.2
4.2
kHz
MHz
MHz
2
System Frequency
2
On-Chip PLL System Frequency
Slow On-Chip PLL System Frequency
Fast On-Chip PLL System Frequency
External Clock Operation
f
sys
dc
4 (f
ref
)
4 (f
ref
) /128
dc
16.78
16.78
16.78
16.78 MHz
3
PLL Lock Time
1, 7, 8, 9
Changing W or Y in SYNCR or exiting from
LPSTOP
3
Warm Start-Up
4
Cold Start-Up (fast reference option only)
5
t
lpll
— 20
50
75 ms
4 VCO Frequency
6
f
VCO
— 2 (f
sys
max) ms
5
Limp Mode Clock Frequency
SYNCR X bit = 0
SYNCR X bit = 1 f
limp
—
— f
sys
max /2
f
sys
max
MHz
6
CLKOUT Jitter
1, 7, 8, 9, 10
Short term (5
µ
s interval)
Long term (500
µ
s interval)
J
clk
–0.5
–0.05
0.5
0.05
%
F
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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