參數(shù)資料
型號(hào)： GS816272C
廠商： GSI TECHNOLOGY
英文描述： 256K x 72 18Mb Sync Burst SRAMs
中文描述： 256 × 72 35.7同步突發(fā)靜態(tài)存儲(chǔ)器
文件頁(yè)數(shù)： 6/31頁(yè)
文件大?。?/td> 791K
代理商： GS816272C
Synchronous Truth Table
Operation
Address Used
State
Diagram
Key
5
E
1
ADSP
ADSC
ADV
W
3
DQ
4
Deselect Cycle, Power Down
None
X
H
X
L
X
X
High-Z
Read Cycle, Begin Burst
External
R
L
L
X
X
X
Q
Read Cycle, Begin Burst
External
R
L
H
L
X
F
Q
Write Cycle, Begin Burst
External
W
L
H
L
X
T
D
Read Cycle, Continue Burst
Next
CR
X
H
H
L
F
Q
Read Cycle, Continue Burst
Next
CR
H
X
H
L
F
Q
Write Cycle, Continue Burst
Next
CW
X
H
H
L
T
D
Write Cycle, Continue Burst
Next
CW
H
X
H
L
T
D
Read Cycle, Suspend Burst
Current
X
H
H
H
F
Q
Read Cycle, Suspend Burst
Current
H
X
H
H
F
Q
Write Cycle, Suspend Burst
Current
X
H
H
H
T
D
Write Cycle, Suspend Burst
Current
H
X
H
H
T
D
Notes:
1.
2.
3.
X = Don’t Care, H = High, L = Low
W = T (True) and F (False) is defined in the Byte Write Truth Table preceding
G is an asynchronous input. G can be driven high at any time to disable active output drivers. G low can only enable active drivers (shown
as “Q” in the Truth Table above).
All input combinations shown above are tested and supported. Input combinations shown in gray boxes need not be used to accomplish
basic synchronous or synchronous burst operations and may be avoided for simplicity.
Tying ADSP high and ADSC low allows simple non-burst synchronous operations. See
BOLD
items above.
Tying ADSP high and ADV low while using ADSC to load new addresses allows simple burst operations. See
ITALIC
items above.
4.
5.
6.
GS816272C
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
Rev: 2.18 11/2005
6/31
1999, GSI Technology
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參數(shù)描述
GS816272C200 制造商:GSI 功能描述:New
GS816272CC-150 制造商:GSI Technology 功能描述:SRAM SYNC OCTAL 2.5V/3.3V 18MBIT 256KX72 7.5NS/3.8NS 209FBGA - Trays
GS816272CC-150I 制造商:GSI Technology 功能描述:SRAM SYNC OCTAL 2.5V/3.3V 18MBIT 256KX72 7.5NS/3.8NS 209FBGA - Trays
GS816272CC-150IV 制造商:GSI Technology 功能描述:SRAM SYNC OCTAL 1.8V/2.5V 18MBIT 256KX72 7.5NS/3.8NS 209FBGA - Trays
GS816272CC-150V 制造商:GSI Technology 功能描述:SRAM SYNC OCTAL 1.8V/2.5V 18MBIT 256KX72 7.5NS/3.8NS 209FBGA - Trays
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