PPC405EX-NPAFFFTX AMCC [Applied Micro Circuits Corporation], PPC405EX-NPAFFFTX Datasheet - Page 59
PPC405EX-NPAFFFTX
Manufacturer Part Number
PPC405EX-NPAFFFTX
Description
PowerPC 405EX Embedded Processor
Manufacturer
AMCC [Applied Micro Circuits Corporation]
Datasheet
1.PPC405EX-NPAFFFTX.pdf
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PPC405EX – PowerPC 405EX Embedded Processor
Table 19. DDR SDRAM Output Driver Specifications
DDR SDRAM Write Operation
The rising edge of MemClkOut aligns with the first rising edge of the DQS signal on writes. The following data is
generated by means of simulation and includes logic, driver, package RLC, and lengths. Values are calculated
over best case and worst case processes with speed, junction temperature, and voltage as follows:
Note: In the following tables and timing diagrams, minimum values are measured under best case conditions and
maximum values are measured under worst case conditions. The timing numbers in the following sections are
obtained using a simulation that assumes a model as shown in Figure 6.
AMCC Proprietary
Write Data
MemData00:31
ECC0:7
DM0:4
MemClkOut
MemAddr00:14
BA0:2
RAS
CAS
WE
BankSel0:1
MemClkEn
DQS0:4
MemODT0:1
Table 20. DDR SDRAM Write Operation Conditions
Worst
Case
Best
Signal Path
Process Speed
Slow
Fast
I/O H (maximum)
10
10
10
10
10
10
10
10
10
10
10
10
10
Junction Temperature (°C)
Output Current (mA)
+125
−40
Preliminary Data Sheet
Revision 1.09 - August 21, 2007
I/O L (maximum)
10
10
10
10
10
10
10
10
10
10
10
10
10
Voltage (V)
+1.3
+1.1
59
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