
Electrical Characteristics
Tables of Data
68HC(9)12DG128 Rev 1.0
MOTOROLA
Electrical Characteristics
377
23-elec
Table 78 CGM Characteristics
5.0 Volts +/- 10%
Characteristic
Symbol
Min.
Typ.
Max.
Unit
PLL reference frequency, crystal oscillator range
(1)
f
REF
0.5
8
MHz
Bus frequency
f
BUS
0.004
8
MHz
VCO range
f
VCO
2.5
8
MHz
VCO Limp-Home frequency
f
VCOMIN
0.5
2.5
MHz
Lock Detector transition from Acquisition to
Tracking mode
(2)
trk
3%
4%
—
Lock Detection
Lock
unl
0%
1.5%
—
Un-Lock Detection
0.5%
2.5%
—
Lock Detector transition from Tracking to
Acquisition mode
unt
6%
8%
—
Minimum leakage resistance on crystal oscillator
pins
r
leak
1
M
PLL Stabilization delay
(3)
PLL Total Stabilization Delay
(4)
t
stab
3
ns
PLLON Acquisition mode stabilization delay.
(4)
t
acq
1
ns
PLLON tracking mode stabilization delay.
(4)
t
al
2
ns
1. VDDPLL at VDD level.
2. AUTO bit set
3. PLL stabilization delay is highly dependent on operational requirement and external component values (e.e. crystal, XFC
filter component values|). Note
(4)
shows typical delay values for a typical configuration. Appropriate XFC filter values
should be chosen based on operational requirement of system.
4.
f
REF
= 4MHz,
f
BUS
= 8MHz (REFDV = #$00, SYNR = #$01), XFC:Cs = 33nF, Cp = 3.3nF, Rs = 2.7K
.
Table 79 Key Wake-up
Characteristic
Symbol
t
KWSTP
t
KWSP
Min.
2
20
Max.
10
Unit
μ
s
μ
s
STOP Key Wake-Up Filter time
Key Wake-Up Single Pulse Time Interval
Table 80 msCAN12 Wake-up Time from Sleep Mode
V
DD
= 5.0V dc ± 10%, V
SS
= 0 Vdc, T
A
= T
L
to T
H,
unless otherwise noted
Characteristic
Symbol
Min.
Max.
Unit
μ
s
Wake-Up time
t
wup
2
5