參數(shù)資料
型號: WED9LAPC2C16P8BI
廠商: MICROSEMI CORP-PMG MICROELECTRONICS
元件分類: DRAM
英文描述: 4M X 32 SYNCHRONOUS DRAM, PBGA153
封裝: 14 X 22 MM, BGA-153
文件頁數(shù): 7/21頁
文件大?。?/td> 693K
代理商: WED9LAPC2C16P8BI
15
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
WED9LAPC2B16P8BC
November 2001
Rev. 1
White Electronic Designs Corp. reserves the right to change products or specications without notice.
FIGURE 9 – SDRAM READ & WRITE CYCLE AT DIFFERENT BANK @ BURST LENGTH = 4
Note:
1. tCDL should be met to complete write.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
GCK
VCRAS#
VCCAS#
VCADDR
VCBS
VCADDR9/AP
VCDATA
VCWE#
VCDQM#
CL = 2
CL = 3
Row Active
(A-Bank)
Row Active
(B-Bank)
Row Active
(A-Bank)
Read
(A-Bank)
Read
(A-Bank)
Write
(B-Bank)
Precharge
(A-Bank)
DON’T CARE
RAa
CAa
RBb
RAc
CBb
CAc
RAa
Note 1
tCDL
QAa0
QAa1
QAa2
QAa3
QAa0
QAa1
QAa2
QAa3
DBb0
DBb1
DBb2
DBb3
QAc0
QAc1
QAc0
QAc1
QAc2
DBb0
DBb1
DBb2
DBb3
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