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IMX28CEC датащи(PDF) 32 Page - Freescale Semiconductor, Inc

номер детали IMX28CEC
подробное описание детали  Processors Data Sheet for Consumer Products
PDF  70 Pages
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производитель  FREESCALE [Freescale Semiconductor, Inc]
домашняя страница  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

IMX28CEC датащи(HTML) 32 Page - Freescale Semiconductor, Inc

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i.MX28 Applications Processors Data Sheet for Consumer Products, Rev. 1
32
Freescale Semiconductor
3.5.3.2
DDR Output AC Timing
Figure 6 and Table 36 show the DDR output AC timing defined for all DDR types: LPDDR1, standard
DDR2 (1.8 V), and LVDDR2 (1.5 V)
Figure 6. DDR Output AC Timing
DDR3
CK low level width
tCL
0.5 tCK
–0.5
0.5 tCK
+ 0.5
ns
DDR4
Address and control output setup time
tIS
0.5 tCK – 1
0.5 tCK
+ 0.5
ns
DDR5
Address and control output hold time
tIH
0.5 tCK – 1
0.5 tCK
+ 0.5
ns
Table 36. DDR Output AC Timing
ID
Description
Symbol
Min
Max
Unit
DDR10
Positive DQS latching edge to associated CK edge
tDQSS
–0.5
0.5
ns
DDR11
DQS falling edge from CK rising edge—hold time
tDSH
0.5 tCK
–0.5
0.5 tCK
+ 0.5
ns
DDR12
DQS falling edge to CK rising edge—setup time
tDSS
0.5 tCK
–0.5
0.5 tCK
+ 0.5
ns
Table 35. EMI Command/Address AC Timing (continued)
ID
Description
Symbol
Min.
Max.
Unit
EMI_CLK
EMI_CLKN
EMI_DQS
DDR13
DDR14
d0
DDR10
d1
d2
d3
EMI_DQ & EMI_DQM
DDR11
DDR12
DDR15
DDR16
EMI_DQSN



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