mc56f8006 Freescale Semiconductor, Inc, mc56f8006 Datasheet - Page 54

• Manufacturer Part Number: mc56f8006
• Description: Digital Signal Controller
• Manufacturer: Freescale Semiconductor, Inc

Specifications
8.13
Tests are conducted using the input levels specified in
from the 50% to the 50% point, and rise and fall times are measured between the 10% and 90% points, as shown in
Figure 24
54
•
1
2
3
4
Oscillator crystal or resonator (PRECS = 1, CLK_MOD = 0)
Load capacitors
Feedback resistor
Series resistor
Crystal start-up time
Square wave input clock frequency (PRECS = 1, CLK_MOD = 1)
Data in Typical column was characterized at 3.0 V, 25°C or is typical recommended value.
Load capacitors (C
RANGE=HGO=0.
See crystal or resonator manufacturer’s recommendation.
Proper PC board layout procedures must be followed to achieve specifications.
Active state, when a bus or signal is driven, and enters a low impedance state
Input Signal
Low range (RANGE = 0)
High range (RANGE = 1), high gain (COHL =0)
High range (RANGE = 1), low power (COHL =1)
Low range (RANGE=0), low power (COHL =1)
Other oscillator settings
Low range, low power (RANGE=0, COHL =1)
Low range, high gain (RANGE=0, COHL =0)
High range (RANGE=1, COHL=X)
Low range, low power (RANGE = 0, COHL =1)
Low range, high gain (RANGE = 0, COHL =0)
High range, low power (RANGE = 1, COHL =1)
High range, high gain (RANGE = 1,COHL =0)
Low range, low power
Low range, high gain
High range, low power
High range, high gain
shows the definitions of the following signal states:
AC Electrical Characteristics
≥ 8 MHz
4 MHz
1 MHz
4
1
,C
Fall Time
2
), feedback resistor (R
Characteristic
Midpoint1
MC56F8006/MC56F8002 Digital Signal Controller, Rev. 2
Figure 23. Input Signal Measurement References
Table 27. Crystal Oscillator Characteristics
V
IH
The midpoint is V
F
Table
2
) and series resistor (R
2
Low
V
IL
21. Unless otherwise specified, propagation delays are measured
IL
+ (V
IH
– V
Symbol
IL
C
t
t
)/2.
CSTH
CSTL
f
R
1,
R
S
f
f
f
xtal
lo
hi
hi
S
) are incorporated internally when
C
F
Rise Time
2
High
Min
32
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1
1
Typ
TBD
TBD
TBD
TBD
100
10
—
—
—
See Note
See Note
—
—
1
0
0
0
0
0
1
Freescale Semiconductor
90%
50%
10%
Max
38.4
50.0
16
10
20
—
—
—
—
—
—
—
—
—
—
2
3
8
0
Unit
MHz
MHz
MHz
MHz
MΩ
ms
kΩ
Figure
23.