MPC8247 MOTOROLA [Motorola, Inc], MPC8247 Datasheet - Page 15
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MPC8247
Manufacturer Part Number
MPC8247
Description
MPC8272 PowerQUICC II Family Hardware Specifications
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MPC8247.pdf
(56 pages)
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1
AC Electrical Characteristics
AC Electrical Characteristics
Table 10 lists CPM input characteristics.
15
1
Setup
sp16a
sp16b
sp18a
sp18b
Spec Number
sp36a
sp36b
sp38a
sp38b
sp42a
sp20
sp22
Spec Number
sp40
sp42
Input specifications are measured from the 50% level of the signal to the 50% level of the rising edge of CLKIN.
Timings are measured at the pin.
Max
Output specifications are measured from the 50% level of the rising edge of CLKIN to the 50% level of the signal.
Timings are measured at the pin.
sp17a FCC inputs—internal clock (NMSI)
sp17b FCC inputs—external clock (NMSI)
sp19a SCC/SMC/SPI/I2C inputs—internal clock (NMSI)
sp19b SCC/SMC/SPI/I2C inputs—external clock (NMSI)
Hold
sp21
sp23
sp37a FCC outputs—internal clock (NMSI)
sp37b FCC outputs—external clock (NMSI)
sp39a SCC/SMC/SPI/I2C outputs—internal clock (NMSI)
sp39b SCC/SMC/SPI/I2C outputs—external clock (NMSI)
sp43a PIO outputs
sp41
sp43
Min
TDM inputs/SI
PIO/TIMER/IDMA inputs
Although the specifications generally reference the rising edge of the
clock, the following AC timing diagrams also apply when the falling edge
is the active edge.
TDM outputs/SI
TIMER/IDMA outputs
MPC8272 PowerQUICC II™ Family Hardware Specifications
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Freescale Semiconductor, Inc.
Table 9. AC Characteristics for CPM Outputs
Table 10. AC Characteristics for CPM Inputs
For More Information On This Product,
Characteristic
Characteristic
Go to: www.freescale.com
NOTE
MHz
MHz
66
10
20
10
7
3
5
66
14
19
19
14
14
14
Maximum Delay
6
Setup
MHz
MHz
2.5
83
16
5.5
8
4
5
8
83
12
16
16
12
11
11
1
1
MHz
MHz
100
2.5
100
Value (ns)
Value (ns)
5.5
16
12
16
16
12
11
11
8
4
5
8
MHz
MHz
0.5
0.5
66
66
0
2
0
2
4
Minimum Delay
1
2
1
2
5
1
MOTOROLA
Hold
MHz
MHz
0.5
0.5
0.5
0.5
83
83
1
2
2
3
0
2
0
2
3
MHz
100
MHz
0.5
0.5
0.5
100
0.5
1
2
2
3
0
2
0
2
3