mc68hc912d60c Freescale Semiconductor, Inc, mc68hc912d60c Datasheet - Page 425

• Manufacturer Part Number: mc68hc912d60c
• Description: Hc12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

MC68HC912D60A — Rev. 3.1
Freescale Semiconductor
PLL reference frequency
Bus frequency
VCO range
VCO Limp-Home frequency
Lock Detector transition from Acquisition to
Lock Detection
Un-Lock Detection
Lock Detector transition from Tracking to
Minimum leakage resistance on crystal oscillator
On the K38K mask set
PLL Stabilization delay
PLL Total Stabilization Delay
PLLON Acquisition mode stabilization delay.
PLLON tracking mode stabilization delay.
1. On the K38K mask set, the limp home mode frequency is higher than the specified maximum limit.
2. AUTO bit set
3. PLL stabilization delay is highly dependent on operational requirement and external component values (i.e. crystal, XFC
4.
1. These values are dervied from design simulation and are not tested
2. Specifications apply to quartz or ceramic resonators only
Tracking mode
Acquisition mode
pins
Input buffer hysteresis
Resonator Frequency
Resonator Frequency
f
filter component values|). Note
should be chosen based on operational requirement of system.
REF
(VDDPLL=VDD)
(VDDPLL=0V)
= 4MHz,
f
(2)
BUS
Characteristic
(2)
= 8MHz (REFDV = #$00, SYNR = #$01), XFC:Cs = 33nF, Cp = 3.3nF, Rs = 2.7KΩ.
(3)
(2)
(2)
(1)
(4)
Max
Max
Max
Min
Min
Min
V
Table 20-17. Oscillator Characteristics
(4)
DD
Table 20-16. CGM Characteristics
shows typical delay values for a typical configuration. Appropriate XFC filter values
= 5.0 V dc ±10%, V
MC68HC912D60A
(4)
(4)
Electrical Specifications
0.5
50
10
0
8
4
Symbol
f
VCOMIN
∆
f
f
f
r
∆
t
∆
t
SS
VCO
∆
BUS
REF
stab
leak
Lock
acq
t
unl
unt
al
trk
= 0 V dc, T
MC68HC912D60C
0.004
0.5%
Min.
0.5
2.5
0.5
3%
0%
6%
350
0.5
75
10
1
A
8
4
= T
L
to T
H
Typ.
1
3
1
2
MC68HC912D60P
Electrical Specifications
350
0.5
0.5
75
16
8
2.5
1.5%
2.5%
Max.
4%
8%
8
8
8
(1)
Technical Data
Tables of Data
MHz
MHz
MHz
MHz
Unit
MΩ
ms
ms
ms
MHz
MHz
Unit
—
—
—
—
mV
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