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ADSP-BF705BBCZ-4 Datasheet(PDF) 74 Page - Analog Devices

Part # ADSP-BF705BBCZ-4
Description  Instruction set compatible with previous Blackfin products
PDF  116 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADSP-BF705BBCZ-4 Datasheet(HTML) 74 Page - Analog Devices

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Rev. A
|
Page 74 of 116
|
September 2015
ADSP-BF700/701/702/703/704/705/706/707
Mobile DDR SDRAM Read Cycle Timing
Table 43 and Figure 21 show mobile DDR SDRAM read cycle timing, related to the dynamic memory controller (DMC).
Table 43. Mobile DDR SDRAM Read Cycle Timing, VDD_DMC Nominal 1.8 V
200 MHz
Parameter
Min
Max
Unit
Timing Requirements
tQH
DMC0_DQ, DMC0_DQS Output Hold Time From DMC0_DQS
1.5
ns
tDQSQ
DMC0_DQS-DMC0_DQ Skew for DMC0_DQS and Associated
DMC0_DQ Signals
0.7
ns
tRPRE
Read Preamble
0.9
1.1
tCK
tRPST
Read Postamble
0.4
0.6
tCK
Figure 21. Mobile DDR SDRAM Controller Input AC Timing
DMC0_CK
DMC0_DQS
tDQSQ
DMC0_DQS
(DATA)
Dn
Dn+1
Dn+2
Dn+3
tRPRE
tRPST
tQH



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