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IMX53IEC bảng dữ liệu(PDF) 62 Page - Freescale Semiconductor, Inc

tên linh kiện IMX53IEC
Giải thích chi tiết về linh kiện  i.MX53 Applications Processors for Industrial Products
PDF  173 Pages
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nhà sản xuất  FREESCALE [Freescale Semiconductor, Inc]
Trang chủ  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

IMX53IEC bảng dữ liệu(HTML) 62 Page - Freescale Semiconductor, Inc

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i.MX53 Applications Processors for Industrial Products, Rev. 6
62
Freescale Semiconductor
Electrical Characteristics
Figure 28 and Table 40 show the address and control timing parameters for DDR2 and DDR3.
Figure 28. DDR SDRAM Address and Control Parameters for DDR2 and DDR3
Table 40. DDR SDRAM Timing Parameter Table1 2
1 All timings are refer to Vref level cross point.
2
Reference load model is 25
Ω resistor from each of the DDR outputs to VDD_REF.
ID
Parameter
Symbol
SDCLK = 400 MHz
Units
Min
Max
DDR1
SDRAM clock high-level width
tCH
0.48
0.52
tCK
DDR2
SDRAM clock low-level width
tCL
0.48
0.52
tCK
DDR4
CS, RAS, CAS, CKE, WE, ODT setup time
tIS
0.6
—
ns
DDR5
CS, RAS, CAS, CKE, WE, ODT hold time
tIH
0.6
—
ns
DDR6
Address output setup time
tIS
0.6
—
ns
DDR7
Address output hold time
tIH
0.6
—
ns
SDCLK
WE
ADDR
ROW/BA
COL/BA
CS
CAS
RAS
DDR1
DDR2
DDR4
DDR4
DDR4
DDR5
DDR5
DDR5
DDR5
DDR6
DDR7
SDCLK
ODT/CKE
DDR4



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