參數(shù)資料
型號(hào): GS816272C-150T
廠商: GSI TECHNOLOGY
元件分類: SRAM
英文描述: 256K X 72 CACHE SRAM, 7.5 ns, PBGA209
封裝: 14 X 22 MM, 1 MM PITCH, BGA-209
文件頁(yè)數(shù): 27/31頁(yè)
文件大?。?/td> 1583K
代理商: GS816272C-150T
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GS816272C
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
Rev: 2.18 11/2005
5/31
1999, GSI Technology
Byte Write Truth Table
Function
GW
BW
BA
BB
BC
BD
BE
BF
BG
BH
Notes
Read
H
X
1
Read
H
L
H
1
Write byte A
H
L
H
L
H
2, 3
Write byte B
H
L
H
L
H
L
H
2, 3
Write byte C
H
L
H
L
H
L
H
2, 3, 4
Write byte D
H
L
H
L
H
L
2, 3, 4
Write byte E
H
L
H
L
H
2, 3, 4
Write byte F
H
L
H
L
H
2, 3, 4
Write byte G
H
L
H
L
H
2, 3, 4
Write byte H
H
L
H
L
2, 3, 4
Write all bytes
H
L
2, 3, 4
Write all bytes
L
X
Notes:
1. All byte outputs are active in read cycles regardless of the state of Byte Write Enable inputs.
2. Byte Write Enable inputs BA, BB, BC, BD, BE, BF, BG, and/or BH may be used in any combination with BW to write single or multiple bytes.
3. All byte I/Os remain High-Z during all write operations regardless of the state of Byte Write Enable inputs.
4. Bytes “E”, “F”, “G” and “H” are only available on the x72 version.
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