參數(shù)資料
型號: AS7C33128FT18B-75TQC
廠商: ALLIANCE SEMICONDUCTOR CORP
元件分類: DRAM
英文描述: 3.3V 128K x 18 Flow Through Synchronous SRAM
中文描述: 128K X 18 STANDARD SRAM, 7.5 ns, PQFP100
封裝: 14 X 20 MM, TQFP-100
文件頁數(shù): 6/19頁
文件大?。?/td> 399K
代理商: AS7C33128FT18B-75TQC
AS7C33128FT18B
12/10/04; v.1.3
Alliance Semiconductor
P. 6 of 19
Write enable truth table (per byte)
Key:
X = don’t care, L = low, H = high, n = a, b;
BWE
,
BWn
= internal write signal.
Asynchronous Truth Table
Notes:
1. X means “Don’t Care”
2. ZZ pin is pulled down internally
3. For write cycles that follows read cycles, the output buffers must be disabled with OE, otherwise data bus contention will occur.
4. Snooze mode means power down state of which stand-by current does not depend on cycle times
5. Deselected means power down state of which stand-by current depends on cycle times
Burst sequence table
Function
GWE
BWE
BWa
BWb
Write All Bytes
L
X
X
X
H
L
L
L
Write Byte a
H
L
L
H
Write Byte b
H
L
H
L
Read
H
H
X
X
H
L
H
H
Operation
ZZ
H
L
L
L
L
OE
X
L
H
X
X
I/O Status
High-Z
Dout
High-Z
Din, High-Z
High-Z
Snooze mode
Read
Write
Deselected
Interleaved burst address (LBO = 1)
A1 A0
0 0
2
nd
Address
0 1
3
rd
Address
1 0
4
th
Address
1 1
Linear burst address (LBO = 0)
A1 A0
0 0
0 1
1 0
1 1
A1 A0
0 1
0 0
1 1
1 0
A1 A0
1 0
1 1
0 0
0 1
A1 A0
1 1
1 0
0 1
0 0
A1 A0
0 1
1 0
1 1
1 0
A1 A0
1 0
1 1
0 0
0 1
A1 A0
1 1
0 0
0 1
1 0
1
st
Address
1
st
Address
2
nd
Address
3
rd
Address
4
th
Address
相關PDF資料
PDF描述
AS7C33128FT18B-75TQCN 3.3V 128K x 18 Flow Through Synchronous SRAM
AS7C33128FT18B-75TQI 3.3V 128K x 18 Flow Through Synchronous SRAM
AS7C33128FT18B-75TQIN 3.3V 128K x 18 Flow Through Synchronous SRAM
AS7C33128FT18B-80TQC 3.3V 128K x 18 Flow Through Synchronous SRAM
AS7C33128FT18B-80TQCN 3.3V 128K x 18 Flow Through Synchronous SRAM
相關代理商/技術參數(shù)
參數(shù)描述
AS7C33128FT18B-75TQCN 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:3.3V 128K x 18 Flow Through Synchronous SRAM
AS7C33128FT18B-75TQI 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:3.3V 128K x 18 Flow Through Synchronous SRAM
AS7C33128FT18B-75TQIN 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:3.3V 128K x 18 Flow Through Synchronous SRAM
AS7C33128FT18B-80TQC 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:3.3V 128K x 18 Flow Through Synchronous SRAM
AS7C33128FT18B-80TQCN 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:3.3V 128K x 18 Flow Through Synchronous SRAM