參數(shù)資料
型號: GS8170DW72C-200
廠商: GSI TECHNOLOGY
元件分類: DRAM
英文描述: 18Mb ヒ1x1Dp CMOS I/O Double Late Write SigmaRAM
中文描述: 256K X 72 STANDARD SRAM, 2.25 ns, PBGA209
封裝: 14 X 22 MM, 1 MM PITCH, BGA-209
文件頁數(shù): 13/27頁
文件大?。?/td> 827K
代理商: GS8170DW72C-200
GS8170DW36/72C-333/300/250/200
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
Rev: 2.04 5/2005
13/27
2002, GSI Technology, Inc.
Common I/O State Diagram
X,F,0,X or X,X,1,X
Deselect
Bank
Deselect
Read
Read
Continue
Write
Write
Continue
X,F,0,X
1,T,0,X
X,F,0,X
1,T,0,X
1,T,0,X
X,F,0,X
1,T,0,X
1,T,0,X or X,X,1,X
0,T,0,0
0,T,0,1
0,T,0,0
0,T,0,1
X,F,0,X
X,F,0,X
0,T,0,0
0,T,0,1
X,X,1,X
X,X,1,X
0,T,0,0
0,T,0,1
1,T,0,X
0,T,0,0
0,T,0,1
X,X,1,X
X,X,1,X
0,T,0,1
0,T,0,0
Clock (CK)
Command
Current State
Next State
Current State & Next State Definition for Read
/Write Control State Diagram
Current State (n)
Next State (n + 1)
Transition
Input Command Code
Key
n
n+1
n+2
n+3
Notes:
1.
2.
3.
The notation “X,X,X,X” controlling the state transitions above indicate the states of inputs E1, E, ADV, and W respectively.
If (E2 = EP2 and E3 = EP3) then E = “T” else E = “F”.
“1” = input “high”; “0” = input “l(fā)ow”; “X” = input “don’t care”; “T” = input “true”; “F” = input “false”.
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