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MPC8280VRI 数据表(PDF) 15 Page - Freescale Semiconductor, Inc

部件名 MPC8280VRI
功能描述  PowerQUICC II??Family Hardware Specifications
PDF  80 Pages
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制造商  FREESCALE [Freescale Semiconductor, Inc]
网页  http://www.freescale.com
标志 FREESCALE - Freescale Semiconductor, Inc

MPC8280VRI 数据表(HTML) 15 Page - Freescale Semiconductor, Inc

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MPC8280 PowerQUICC II™ Family Hardware Specifications, Rev. 1.7
Freescale Semiconductor
15
AC Electrical Characteristics
6.1 CPM AC Characteristics
Table 9 lists CPM output characteristics.
Table 10 lists CPM input characteristics.
NOTE: Rise/Fall Time on CPM Input Pins
It is recommended that the rise/fall time on CPM input pins should not exceed 5 ns.
This should be enforced especially on clock signals. Rise time refers to signal
transitions from 10% to 90% of VCC; fall time refers to transitions from 90% to
10% of VCC.
Table 9. AC Characteristics for CPM Outputs 1
1
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.
Spec Number
Characteristic
Value (ns)
Max
Min
Maximum Delay
Minimum Delay
66 MHz
83 MHz 100 MHz 66 MHz
83 MHz 100 MHz
sp36a sp37a FCC outputs—internal clock (NMSI)
6
5.5
5.5
0.5
0.5
0.5
sp36b sp37b FCC outputs—external clock (NMSI)
8
8
8
2
2
2
sp38a sp39a SCC/SMC/SPI/I2C outputs—internal
clock (NMSI)
10
10
10
0
0
0
sp38b sp39b SCC/SMC/SPI/I2C outputs—external
clock (NMSI)
8
882
22
sp40
sp41 TDM outputs/SI
11
11
11
2.5
2.5
2.5
sp42
sp43 TIMER/IDMA outputs
11
11
11
0.5
0.5
0.5
sp42a sp43a PIO outputs
11
11
11
0.5
0.5
0.5
Table 10. AC Characteristics for CPM Inputs 1
1
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.
Spec Number
Characteristic
Value (ns)
Setup
Hold
Setup
Hold
66 MHz
83 MHz 100 MHz 66 MHz
83 MHz 100 MHz
sp16a sp17a FCC inputs—internal clock (NMSI)
6
6
6
0
0
0
sp16b sp17b FCC inputs—external clock (NMSI)
2.5
2.5
2.5
2
2
2
sp18a sp19a SCC/SMC/SPI/I2C inputs—internal
clock (NMSI)
6
660
00
sp18b sp19b SCC/SMC/SPI/I2C inputs—external
clock (NMSI)
4
442
22
sp20
sp21 TDM inputs/SI
5
5
5
2.5
2.5
2.5
sp22
sp23 PIO/TIMER/IDMA inputs
8
8
8
0.5
0.5
0.5



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