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參數(shù)資料
| 型號： | W24L257Q70LE |
| 英文描述： | x8 SRAM |
| 中文描述： | x8的SRAM |
| 文件頁數(shù)： | 1/11頁 |
| 文件大小： | 213K |
| 代理商： | W24L257Q70LE |
W24L257
32K
′
8 CMOS STATIC RAM
Publication Release Date: October 3, 2001
- 1 -
Revision A5
GENERAL DESCRIPTION
The W24L257 is a normal-speed, very low-power CMOS static RAM organized as 32768
×
8 bits that
operates on a wide voltage range from 3V to 5.5V power supply. This device is manufactured using
Winbond's high performance CMOS technology.
FEATURES
Low power consumption:
Access time: 70 nS
3.3V/5V power supply
Fully static operation
All inputs and outputs directly TTL compatible
Three-state outputs
Battery back-up operation capability
Data retention voltage: 2V (min.)
Packaged in 330 mil SOP, and standard type
one STSOP (8 mm
×
13.4 mm)
PIN CONFIGURATIONS
BLOCK DIAGRAM
1
2
3
4
5
6
7
8
9
10
11
12
13
16
24
25
26
27
28
20
21
22
23
17
18
19
14
15
A8
A9
#WE
A11
#OE
A10
CS
I/O8
I/O7
I/O6
I/O5
I/O4
A13
VDD
A7
A6
A5
A12
A4
A3
A2
A1
A0
I/O2
I/O3
I/O1
V
A14
SS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TSOP
15
16
28
27
26
25
24
23
22
21
20
19
18
17
A12
A7
A6
A5
A4
A3
A8
#W
E
V
DD
A14
A11
A9
A2
A1
A0
#OE
A10
#CS
I/O8
I/O7
I/O6
I/O5
I/O4
V
SS
I/O3
I/O2
CORE CELL ARRAY
512 ROWS
32 X 8 COLUMNS
DATA
CLK
R
O
W
D
E
C
O
D
E
R
I/O CKT.
COLUMN DECODER
#WE
#OE
CLK GEN.
PRECHARGE CKT.
A13
A8
A1 A0
A11 A10
#CS
A14
A12
A4
A3
A2
A7
A6
A5
A9
I/O1
:
I/O8
PIN DESCRIPTION
SYMBOL
A0
A14
I/O1
I/O8
#CS
#WE
#OE
V
DD
V
SS
NC
DESCRIPTION
Address Inputs
Data Inputs/Outputs
Chip Select Input
Write Enable Input
Output Enable Input
Power Supply
Ground
No Connection
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W24L257Q70LL | x8 SRAM |
| W24L257S70LE | x8 SRAM |
| W24L257S70LL | x8 SRAM |
| W250-03 | Clocks and Buffers |
| W254B | Clocks and Buffers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W24L257Q70LL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SRAM |
| W24L257S70LE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SRAM |
| W24L257S70LL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SRAM |
| W24LH8 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:Normal speed, Very low power CMOS static RAM Organized as 32768 x 8 bits |
| W24LH8Q-55LE | 制造商:WINBOND 制造商全稱:Winbond 功能描述:Normal speed, Very low power CMOS static RAM Organized as 32768 x 8 bits |
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