參數(shù)資料
型號(hào): WED9LC6416V1512BI
廠商: MICROSEMI CORP-PMG MICROELECTRONICS
元件分類: 存儲(chǔ)器
英文描述: SPECIALTY MEMORY CIRCUIT, PBGA153
封裝: MO-163, BGA-153
文件頁(yè)數(shù): 10/27頁(yè)
文件大小: 334K
代理商: WED9LC6416V1512BI
18
White Electronic Designs Corporation Westborough, MA (508) 366-5151
White Electronic Designs
WED9LC6416V
FIG. 9 SDRAM PAGE READ CYCLE AT DIFFERENT BANK @BURST LENGTH = 4
0
1
2
3
4
5
6
7
SDCLK
SDWE
SDCAS
ADDR
RAa
RBb
CAa
CBb
CAe
CBd
CAc
BA0,1
[A11,A12]
SDA10
RAa
CL=2
QAa1
QAa0
QAa2 QAa3 QBb0 QBb1 QBb2
QAc1
QBb3 QAc0
QBd0 QBd1 QAe0 QAe1
CL=3
DQ
QAa1
QAa0
QAa2 QAa3 QBb0 QBb1
QAc0
QBb2 Qbb3
QAc1 QBd0 QBd1 QAe0 QAe1
Row Active
(A-Bank)
Row Active
(B-Bank)
Read
(A-Bank)
Read
(B-Bank)
Read
(A-Bank)
Read
(B-Bank)
Read
(A-Bank)
Precharge
(A-Bank)
DON T CARE
SDCE
SDRAS
BWE
Note 2
Note 1
NOTES:
1. SDCE can be “don ’t care ” when SDRAS, SDCAS and SDWE are high at the clock going high edge.
2. To interrupt a burst read by Row precharge, both the read and the precharge banks must be the same.
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