參數(shù)資料
型號(hào)： EDI9LC644V
英文描述： 128Kx32 SSRAM/1Mx32 SDRAM Array(3.3V,128x32同步靜態(tài)RAM和1Mx32同步動(dòng)態(tài)RAM陣列)
中文描述： 128Kx32 SSRAM/1Mx32內(nèi)存陣列（3.3伏，128x32同步靜態(tài)內(nèi)存和1Mx32同步動(dòng)態(tài)內(nèi)存陣列）
文件頁(yè)數(shù)： 17/26頁(yè)
文件大?。?/td> 460K
代理商： EDI9LC644V
24
White Electronic Designs Corporation (508) 366-5151 www.whiteedc.com
EDI9LC644V
EDI9LC644AV
FIG. 16
SDRAM MODE REGISTER SET CYCLE
Ra
Key
DQ
New Command
New
Command
Auto Refresh
MRS
012
34
56
0
1
2
3
4
5
6
7
8
9
10
DON'T CARE
tRFC
HI-Z
Note 2
Note 1
Note 3
SDRAS
SDCAS
ADDR
BWE
SDCLK
SDCE
SDWE
*Both banks precharge should be completed before Mode Register Set cycle and Auto refresh cycle.
NOTES:
MODE REGISTER SET CYCLE
1. SDCE, SDRAS, SDCAS & SDWE activation at the same clock cycle with address key will set internal mode register.
2. Minimum 2 clock cycles should be met before new SDRAS activation.
7. Please refer to Mode Register Set table.
SDRAM AUTO REFRESH CYCLE
HIGH
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EDI9LC644V1310BC 制造商:WEDC 制造商全稱(chēng):White Electronic Designs Corporation 功能描述:128Kx32 SSRAM/1Mx32 SDRAM
EDI9LC644V1312BC 制造商:WEDC 制造商全稱(chēng):White Electronic Designs Corporation 功能描述:128Kx32 SSRAM/1Mx32 SDRAM
EDI9LC644V1510BC 制造商:WEDC 制造商全稱(chēng):White Electronic Designs Corporation 功能描述:128Kx32 SSRAM/1Mx32 SDRAM
EDI9LC644V1512BC 制造商:WEDC 制造商全稱(chēng):White Electronic Designs Corporation 功能描述:128Kx32 SSRAM/1Mx32 SDRAM
EDI9LC644V1610BC 制造商:WEDC 制造商全稱(chēng):White Electronic Designs Corporation 功能描述:128Kx32 SSRAM/1Mx32 SDRAM
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