PPC440GP-3FC400C Applied Micro Circuits Corporation, PPC440GP-3FC400C Datasheet - Page 75

• Manufacturer Part Number: PPC440GP-3FC400C
• Manufacturer: Applied Micro Circuits Corporation

Specifications of PPC440GP-3FC400C

• Family Name: 440GP
• Device Core: PowerPC
• Device Core Size: 32/64Bit
• Frequency (max): 400MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 1.8V
• Operating Supply Voltage (max): 1.9/1.95V
• Operating Supply Voltage (min): 1.65/1.7V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 552
• Package Type: FCBGA
• Lead Free Status / RoHS Status: Not Compliant

Revision 1.11 – August 27, 2010
Example 3:
In this example, ECC is enabled. This requires that Stage 3 data be sampled at (3). If ECC is disabled, the system
will still work, but there will be more latency before the data is sampled into RDSP. Again, T
4.3ns at worst case conditions.
DDR SDRAM Read Cycle Timing—Example 3
AppliedMicro Proprietary
Data Sheet
Read Clock Delayed
Data in Stage 1 D
Data out Stage 1
Data out Stage 3
DQS Stage 1 C
Data in at RDSP
Data out RDSP
Data out Stage 2
Data at pin
DQS at pin
PLB Clock
with ECC
with ECC
with ECC
T
DIN
High
Low
High
Low
High
Low
High
High
Low
Low
T
T
D0
SIN
T
T
P
TE
T
D0
= Propagation delay from Stage 2 input to RDSP input w/o ECC
= Propagation delay from Stage 2 input to RDSP input with ECC
D0
T
D1
P
D1
D0
D1
D2
440GP – Power PC 440GP Embedded Processor
D0
D2
D1
D2
D3
T
TE
D3
D2
D3
D0
D1
D3
D2
(3)
D0
D1
D2
T
D3
D0
D1
= 1.5ns and T
D2
D3
D2
D3
TE
=
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