mc9s12vr48 Freescale Semiconductor, Inc, mc9s12vr48 Datasheet - Page 534

• Manufacturer Part Number: mc9s12vr48
• Description: S12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

PLL Electrical Specifications
1
2
534
Conditions are shown in
Num C
% deviation from target frequency
1
2
3
4
5
7
8
f
REF
= 1MHz, f
D VCO frequency during system reset
C VCO locking range
C Reference Clock
D Lock Detection
D Un-Lock Detection
C Time to lock
C Jitter fit parameter 1
BUS
On timers and serial modules a prescaler will eliminate the effect of the jitter
to a large extent.
= 25MHz
Figure A-5
J(N)
Figure E-2. Maximum Bus Clock Jitter Approximation
2
Rating
unless otherwise noted
1
MC9S12VR Family Reference Manual,
Table E-1. ipll_1vdd_ll18 Characteristics
Preliminary - Subject to Change Without Notice
5
10
NOTE
J N
( )
f
Symbol
=
VCORST
|∆
|∆
f
f
t
VCO
REF
Lock
lock
j
unl
1
------- -
j
1
|
N
|
20
Rev. 2.2
Min
0.5
32
8
1
0
N
Typ
Freescale Semiconductor
256/f
150 +
TBD
Max
1.5
2.5
32
50
REF
MHz
MHz
MHz
Unit
%
%
µs
%
1
1