Техническая Спецификация для Freescale Semiconductor MC56F8006 Demo board MC56F8006DEMO MC56F8006DEMO
Модели
MC56F8006DEMO
Specifications
MC56F8006/MC56F8002 Digital Signal Controller, Rev. 4
Freescale Semiconductor
53
8.7
Flash Memory Characteristics
8.8
External Clock Operation Timing
Figure 21. External Clock Timing
Table 23. Flash Timing Parameters
Characteristic
Symbol
Min Typ
Max Unit
Program time
1
1
There is additional overhead that is part of the programming sequence. See the MC56F8006 Peripheral Reference
Manual for detail.
Manual for detail.
t
prog
20
—
40
s
Erase time
2
2
Specifies page erase time. There are 512 bytes per page in the program flash memory.
t
erase
20
—
—
ms
Mass erase time
t
me
100
—
—
ms
Table 24. External Clock Operation Timing Requirements
1
1
Parameters listed are guaranteed by design.
Characteristic
Symbol
Min
Typ
Max
Unit
Frequency of operation (external clock driver)
2
2
for detail on using the recommended connection of an external clock driver.
f
osc
—
—
64
MHz
Clock pulse width
3
3
The chip may not function if the high or low pulse width is smaller than 6.25 ns.
t
PW
6.25
—
—
ns
External clock input rise time
4
4
External clock input rise time is measured from 10% to 90%.
t
rise
—
—
3
ns
External clock input fall time
5
5
External clock input fall time is measured from 90% to 10%.
t
fall
—
—
3
ns
Input high voltage overdrive by an external clock
V
ih
0.85V
DD
—
—
V
Input high voltage overdrive by an external clock
V
il
—
—
0.3V
DD
V
90%
50%
10%
90%
50%
10%
External
Clock
Clock
t
PW
t
PW
t
fall
t
rise
V
IL
V
IH
Note: The midpoint is V
IL
+ (V
IH
– V
IL
)/2.