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ADDR21 датащи(PDF) 46 Page - List of Unclassifed Manufacturers

номер детали ADDR21
подробное описание детали  Figure 1 shows the NS7520 modules. Dashed lines indicate shared pins
PDF  68 Pages
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производитель  ETC2 [List of Unclassifed Manufacturers]
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ADDR21 датащи(HTML) 46 Page - List of Unclassifed Manufacturers

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SDR A M ti ming
42
NS 93 60 Da ta shee t
03 /2 00 6
SDRAM read
SDRAM read, CAS latency = 1
Notes:
1
Port size determines which byte enable signals are active:
–
8-bit port = BE3*
–
16-bit port = BE[3:2]
–
32-bit port = BE[3:0]
2
The precharge and/or active commands are not always present. These commands depend on
the address of the previous SDRAM access.
3
The TA* and TEA*/LAST signals are for reference only.
T1
T2
T1
prechg
active
read
bterm
inhibit
12
34
34
34
34
34
34
34
34
34
34
34
27
27
36
36
35
35
6
37
37
31
31
30
30
11
10
A10
BCLK
TA* (Note-3)
TEA*/LAST* (Note-3)
PortA2/AMUX
Non-muxed address
Muxed address
BE[3:0]* (DQM)
read D[31:0]
CS[4:0]*
CAS3* (RAS#)
CAS2* (CAS#)
CAS1* (WE#)
CAS0* (A10/AP)
RW*



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