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參數資料
| 型號： | AS7C252MFT18A-75TQC |
| 廠商： | ALLIANCE SEMICONDUCTOR CORP |
| 元件分類： | DRAM |
| 英文描述： | CARD READER 2 HEAD INSERT RS232 |
| 中文描述： | 2M X 18 STANDARD SRAM, 7.5 ns, PQFP100 |
| 封裝： | 14 X 20 MM, TQFP-100 |
| 文件頁數： | 1/19頁 |
| 文件大小： | 508K |
| 代理商： | AS7C252MFT18A-75TQC |
January 2005
Copyright Alliance Semiconductor. All rights reserved.
1/17/05, v 1.2
Alliance Semiconductor
1 of 19
2.5V 2M
×
18 Flow-through synchronous SRAM
AS7C252MFT18A
Features
Organization: 2,097152 words × 18 bits
Fast clock to data access:
7.5/8.5/10 ns
Fast OE access time: 3.5/4.0 ns
Fully synchronous flow-through operation
Asynchronous output enable control
Available in 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
-75
8.5
7.5
325
130
90
-85
10
8.5
300
130
90
-10
12
10
275
130
90
Units
ns
ns
mA
mA
mA
Minimum cycle time
Maximum clock access time
Maximum operating current
Maximum standby current
Maximum CMOS standby current (DC)
Burst logic
ADSC
ADSP
ADV
LBO
CLK
CS
CLR
21
19
21
A[20:0]
21
Address
register
D
CS
Q
CLK
2M x 18
Memory
array
18
18
DQb
CLK
D
Byte Write
D
registers
Q
DQa
CLK
Q
Enable
register
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
相關PDF資料 |
PDF描述 |
|---|---|
| AS7C252MFT18A-75TQCN | CARD READER 2 HEAD INSERT RS232 |
| AS7C252MFT18A-75TQI | CARD READER FULL INSERT 2 TRACK |
| AS7C252MFT18A-75TQIN | CARD READER FULL INSERT RS-232 |
| AS7C252MFT18A-85TQC | CARD READER FULL INSERT USB |
| AS7C252MFT18A-85TQCN | CARD READER 3 TRACK FULL INSERT |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AS7C252MFT18A-75TQCN | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V 2M x 18 Flow-through synchronous SRAM |
| AS7C252MFT18A-75TQI | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V 2M x 18 Flow-through synchronous SRAM |
| AS7C252MFT18A-75TQIN | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V 2M x 18 Flow-through synchronous SRAM |
| AS7C252MFT18A-85TQC | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V 2M x 18 Flow-through synchronous SRAM |
| AS7C252MFT18A-85TQCN | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V 2M x 18 Flow-through synchronous SRAM |
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