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參數資料
| 型號： | AS7C251MPFD18A-133TQCN |
| 廠商： | ALLIANCE SEMICONDUCTOR CORP |
| 元件分類： | DRAM |
| 英文描述： | 2.5V 1M x 18 pipelined burst synchronous SRAM |
| 中文描述： | 1M X 18 STANDARD SRAM, 3.8 ns, PQFP100 |
| 封裝： | 14 X 20 MM, LEAD FREE, TQFP-100 |
| 文件頁數： | 1/19頁 |
| 文件大小： | 509K |
| 代理商： | AS7C251MPFD18A-133TQCN |
February 2005
Copyright Alliance Semiconductor. All rights reserved.
AS7C251MPFD18A
2/10/05, v. 1.2
Alliance Semiconductor
1 of 19
2.5V 1M x 18 pipelined burst synchronous SRAM
Features
Organization: 1,048,576 x18 bits
Fast clock speeds to 166 MHz
Fast clock to data access: 3.5/3.8 ns
Fast OE access time: 3.5/3.8 ns
Fully synchronous register-to-register operation
Double-cycle deselect
Asynchronous output enable control
Available 100-pin TQFP package
Individual byte write and global write
Multiple chip enables for easy expansion
2.5V core power supply
Linear or interleaved burst control
Snooze mode for reduced power-standby
Common data inputs and data outputs
Logic block diagram
Selection guide
-166
6
166
3.5
290
85
40
-133
7.5
133
3.8
270
75
40
Units
ns
MHz
ns
mA
mA
mA
Minimum cycle time
Maximum clock frequency
Maximum clock access time
Maximum operating current
Maximum standby current
Maximum CMOS standby current (DC)
Burst logic
CLK
ADSC
ADSP
LBO
CLK
CS
CLR
20
18
20
A[19:0]
20
Address
D
CS
Q
CLK
1M
x
18
Memory
array
18
18
DQb
CLK
D
registers
D
Q
registers
DQa
CLK
Q
Enable
register
CE
CLK
D
Q
Enable
rdelay
CLK
D
Q
Output
registers
CLK
Input
registers
Power
down
DQ[a,b]
2
CE0
CE2
BW
b
BW
a
OE
ZZ
OE
CLK
BWE
GWE
18
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| AS7C251MPFD18A-133TQI | 2.5V 1M x 18 pipelined burst synchronous SRAM |
| AS7C251MPFD18A-133TQIN | 2.5V 1M x 18 pipelined burst synchronous SRAM |
| AS7C251MPFD18A-166TQC | 2.5V 1M x 18 pipelined burst synchronous SRAM |
| AS7C251MPFD32A | 2.5V 1M x 32/36 pipelined burst synchronous SRAM |
| AS7C251MPFD32A-133TQC | 2.5V 1M x 32/36 pipelined burst synchronous SRAM |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AS7C251MPFD18A-133TQI | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V 1M x 18 pipelined burst synchronous SRAM |
| AS7C251MPFD18A-133TQIN | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V 1M x 18 pipelined burst synchronous SRAM |
| AS7C251MPFD18A-166TQC | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V 1M x 18 pipelined burst synchronous SRAM |
| AS7C251MPFD18A-166TQCN | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V 1M x 18 pipelined burst synchronous SRAM |
| AS7C251MPFD18A-166TQI | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V 1M x 18 pipelined burst synchronous SRAM |
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