MPC8544DS Freescale Semiconductor, MPC8544DS Datasheet - Page 20

• Manufacturer Part Number: MPC8544DS
• Description: BOARD DEVELOPMENT SYSTEM 8544
• Manufacturer: Freescale Semiconductor
• Series: PowerQUICC III™r
• Type: MPUr

Specifications of MPC8544DS

• Contents: Board
• Processor To Be Evaluated: MPC8544E
• Data Bus Width: 32 bit
• Interface Type: Ethernet, I2C
• Operating Supply Voltage: - 0.3 V to + 1.1 V
• Leaded Process Compatible: Yes
• Peak Reflow Compatible (260 C): Yes
• Rohs Compliant: Yes
• For Use With/related Products: MPC8544
• For Use With: PPC8544EVTANG - EVAL MPC8544 783FCPBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DDR and DDR2 SDRAM
6.2.2
Table 18
20
At recommended operating conditions.
MCK[n] cycle time, MCK[n]/MCK[n] crossing
ADDR/CMD output setup with respect to MCK
ADDR/CMD output hold with respect to MCK
MCS[n] output setup with respect to MCK
MCS[n] output hold with respect to MCK
MCK to MDQS Skew
MDQ/MECC/MDM output setup with respect
to MDQS
MDQ/MECC/MDM output hold with respect to
MDQS
MDQS preamble
provides the output AC timing specifications for the DDR SDRAM interface.
DDR SDRAM Output AC Timing Specifications
Parameter
MPC8544E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 5
Table 18. DDR SDRAM Output AC Timing Specifications
533 MHz
400 MHz
333 MHz
533 MHz
400 MHz
333 MHz
533 MHz
400 MHz
333 MHz
533 MHz
400 MHz
333 MHz
533 MHz
400 MHz
333 MHz
533 MHz
400 MHz
333 MHz
Symbol
t
t
t
t
t
t
t
t
t
t
DDKHDS,
DDKHDX,
DDKHMH
DDKHMP
DDKHAS
DDKHAX
DDKHCS
DDKHCX
DDKLDS
DDKLDX
t
MCK
1
0.75 x tMCK
3.75
1.48
1.95
2.40
1.48
1.95
2.40
1.48
1.95
2.40
1.48
1.95
2.40
–0.6
Min
538
700
900
538
700
900
Max
0.6
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6
Freescale Semiconductor
Unit
ns
ns
ns
ns
ns
ns
ps
ps
ns
Notes
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2
3
7
3
7
3
7
3
7
4
5
7
5
7
6