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MPC8548ECPXAUJC Scheda tecnica(PDF) 23 Page - Freescale Semiconductor, Inc

Il numero della parte MPC8548ECPXAUJC
Spiegazioni elettronici  Integrated Processor Hardware Specifications
PDF  151 Pages
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Produttore elettronici  FREESCALE [Freescale Semiconductor, Inc]
Homepage  http://www.freescale.com
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MPC8548ECPXAUJC Scheda tecnica(HTML) 23 Page - Freescale Semiconductor, Inc

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MPC8548E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 9
Freescale Semiconductor
23
DDR and DDR2 SDRAM
6.2.2
DDR SDRAM Output AC Timing Specifications
Table 19. DDR SDRAM Output AC Timing Specifications
At recommended operating conditions.
Parameter
Symbol1
Min
Max
Unit
Notes
MCK[n] cycle time, MCK[n]/MCK[n] crossing
tMCK
3.75
6
ns
2
ADDR/CMD output setup with respect to MCK
533 MHz
400 MHz
333 MHz
tDDKHAS
1.48
1.95
2.40
—
—
—
ns
3
ADDR/CMD output hold with respect to MCK
533 MHz
400 MHz
333 MHz
tDDKHAX
1.48
1.95
2.40
—
—
—
ns
3
MCS[n] output setup with respect to MCK
533 MHz
400 MHz
333 MHz
tDDKHCS
1.48
1.95
2.40
—
—
—
ns
3
MCS[n] output hold with respect to MCK
533 MHz
400 MHz
333 MHz
tDDKHCX
1.48
1.95
2.40
—
—
—
ns
3
MCK to MDQS Skew
tDDKHMH
–0.6
0.6
ns
4
MDQ/MECC/MDM output setup with respect
to MDQS
533 MHz
400 MHz
333 MHz
tDDKHDS,
tDDKLDS
538
700
900
—
—
—
ps
5
MDQ/MECC/MDM output hold with respect to
MDQS
533 MHz
400 MHz
333 MHz
tDDKHDX,
tDDKLDX
538
700
900
—
—
—
ps
5
MDQS preamble start
tDDKHMP
–0.5
 t
MCK – 0.6
–0.5
 t
MCK + 0.6
ns
6



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