參數(shù)資料
型號(hào)： GS8170DW72AGC-300IT
廠商： GSI TECHNOLOGY
元件分類： SRAM
英文描述： 256K X 72 STANDARD SRAM, 1.8 ns, PBGA209
封裝： 14 X 22 MM, 1 MM PITCH, LEAD FREE, BGA-209
文件頁(yè)數(shù)： 2/32頁(yè)
文件大?。?/td> 1038K
代理商： GS8170DW72AGC-300IT
GS8170DW36/72AC-350/333/300/250
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
Rev: 1.04 4/2005
10/32
2003, GSI Technology
Programmable Enables
ΣRAMs feature two user-programmable chip enable inputs, E2 and E3. The sense of the inputs, whether they function as active
low or active high inputs, is determined by the state of the programming inputs, EP2 and EP3. For example, if EP2 is held at VDD,
E2 functions as an active high enable. If EP2 is held to VSS, E2 functions as an active low chip enable input.
Programmability of E2 and E3 allows four banks of depth expansion to be accomplished with no additional logic. By programming
the enable inputs of four SRAMs in binary sequence (00, 01, 10, 11) and driving the enable inputs with two address inputs, four
SRAMs can be made to look like one larger RAM to the system.
Example Four Bank Depth Expansion Schematic—
Σ1x1Dp
A
CK
E1
E2
E3
W
A0–An
CK
W
DQ0–DQn
Bank 0
Bank 1
Bank 2
Bank 3
Bank Enable Truth Table
EP2
EP3
E2
E3
Bank 0
VSS
Active Low
Bank 1
VSS
VDD
Active Low
Active High
Bank 2
VDD
VSS
Active High
Active Low
Bank 3
VDD
Active High
E1
An – 1
An
A0–An – 2
An – 1
An
A0–An – 2
An – 1
An
A0–An – 2
An – 1
An
A0–An – 2
DQ
A
CK
E2
E3
W
DQ
A
CK
E2
E3
W
DQ
A
CK
E2
E3
W
DQ
E1
CQ
EP2
EP3
0
EP2
EP3
1
0
EP2
EP3
0
1
EP2
EP3
1
相關(guān)PDF資料
PDF描述
GS8182S18GBD-200I 1M X 18 DDR SRAM, 0.45 ns, PBGA165
GS8182T36BGD-333IT 512K X 36 DDR SRAM, 0.45 ns, PBGA165
GS82032AGQ-133IT 64K X 32 CACHE SRAM, 10 ns, PQFP100
GS8321EV18GE-133T 2M X 18 CACHE SRAM, 8.5 ns, PBGA165
GS8321ZV36E-150T 1M X 36 ZBT SRAM, 8.5 ns, PBGA165
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
GS8170DW72AGC-350 制造商:GSI Technology 功能描述:SRAM SYNC OCTAL 1.8V 18MBIT 256KX72 1.7NS 209FBGA - Trays
GS8170DW72AGC-350I 制造商:GSI Technology 功能描述:SRAM SYNC OCTAL 1.8V 18MBIT 256KX72 1.7NS 209FBGA - Trays
GS8170LW36AC-300I 制造商:GSI Technology 功能描述:SRAM SYNC QUAD 1.8V 18MBIT 512KX36 1.8NS 209FBGA - Trays
GS8170LW36AGC-250 制造商:GSI Technology 功能描述:SRAM SYNC QUAD 1.8V 18MBIT 512KX36 2.1NS 209FBGA - Trays
GS8170LW36AGC-250I 制造商:GSI Technology 功能描述:SRAM SYNC QUAD 1.8V 18MBIT 512KX36 2.1NS 209FBGA - Trays
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*