PPC440GRX-NPAFFFTS AMCC [Applied Micro Circuits Corporation], PPC440GRX-NPAFFFTS Datasheet - Page 74

• Manufacturer Part Number: PPC440GRX-NPAFFFTS
• Description: PowerPC 440GRx Embedded Processor
• Manufacturer: AMCC [Applied Micro Circuits Corporation]

440GRx – PPC440GRx Embedded Processor
Table 20. Peripheral Interface Clock Timings (continued)
Figure 6. Input Setup and Hold Waveform
Figure 7. Output Delay and Float Timing Waveform
74
TmrClk frequency
TmrClk period
TmrClk high time
TmrClk low time
Notes:
1. T
2. An internal PLL improves this duty cycle to a worst case of 48% minimum, 52% maximum.
Outputs
Float (High-Z)
Clock
Clock
Inputs
frequency is 83 MHz.
OPB
Low (Drive)
High (Drive)
1.25V(1.5V)
is the period in ns of the OPB clock. The internal OPB clock runs at 1/2 the frequency of the PLB clock. The maximum OPB clock
1.25V(1.5V)
T
T
OV
OH
max
min
Parameter
T
IS
min
Valid
T
T
OV
OH
40% of nominal period
40% of nominal period
Valid
max
min
Min
10
–
T
IH
min
60% of nominal period
60% of nominal period
Revision 1.08 – October 15, 2007
Preliminary Data Sheet
Max
100
–
Valid
T
T
OV
OH
max
min
Units
MHz
ns
ns
ns
AMCC Proprietary
Notes