PPC440EPX-SUA667T Applied Micro Circuits Corporation, PPC440EPX-SUA667T Datasheet - Page 76

• Manufacturer Part Number: PPC440EPX-SUA667T
• Manufacturer: Applied Micro Circuits Corporation

Specifications of PPC440EPX-SUA667T

• Family Name: 440EPx
• Device Core: PowerPC
• Device Core Size: 32b
• Frequency (max): 667MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 1.5/3.3V
• Operating Supply Voltage (max): 1.6/3.45V
• Operating Supply Voltage (min): 1.425/3.15V
• Operating Temp Range: -40C to 100C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 680
• Package Type: TEBGA
• Lead Free Status / RoHS Status: Compliant

440EPx – PPC440EPx Embedded Processor
Table 19. Peripheral Interface Clock Timings (Sheet 3 of 3)
76
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.
3. Crystals, external clocks, or external oscillators must have a maximum tolerance of ±100ppm and maximum jitter of ±100ps.Only a
Crystal – Frequency: 48MHz
C = 2(C
frequency is 83 MHz.
frequencies of 48MHz is allowed for oscillators; only a frequencies of 48MHz is allowed for crystals. Crystals and oscillators should be
connected as shown below:
OPB
C
C
USB2XtalIn
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
L
Stray
is the load capacitance required by the crystal for oscillation
L
− C
Resonance mode: parallel
C
ESR: 20-60Ω
Drive level: 50–500μW
is the board parasitic capacitance
O
: 15–30pF
Stray
) where
Parameter
C
PPC440EPx
Crystal
C
USB2XtalOUT
40% of nominal period
40% of nominal period
Min
10
–
USB2XtalIn
60% of nominal period
60% of nominal period
Revision 1.30 – February 27, 2009
PPC440EPx
Max
100
–
Osc
USB2XtalOut
Data Sheet
Units
MHz
ns
ns
ns
AMCC Proprietary
Notes