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參數資料
| 型號： | W26L04 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | 256K×16bit CMOS Static RAM(256K×16位CMOS靜態RAM) |
| 中文描述： | 256K × 16位的CMOS靜態RAM（256K × 16位的CMOS靜態RAM）的 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 158K |
| 代理商： | W26L04 |
Preliminary W26L04
256K
×
16 CMOS STATIC RAM
Publication Release Date: December 1999
- 1 -
Revision A1
GENERAL DESCRIPTION
The W26L04 is a normal-speed, very low-power CMOS static RAM organized as 262144
×
16 bits
that operates on a wide voltage range from 1.8V to 3.3V power supply. The W26L04 family, W26L04-
LE and W26L04-LI, can meet the requirement of various operating temperature.
FEATURES
Low power consumption:
Access time: 70/85/120 nS
1.8V to 3.3V supply voltage
Fully static operation
All inputs and outputs directly TTL compatible
Three-state outputs
Battery back-up operation capability
Data retention voltage: 1.5V (min.)
Data byte control
LB
(I/O1
I/O8),
UB
(I/O9
I/O16)
Available packages: 44-pin type two
TSOP, and 48-pin CSP
PIN CONFIGURATIONS
48-pin CSP TOP VIEW
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
1
2
44-pin
TSOP
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A3
A2
A1
A0
CS1
I/O7
I/O8
WE
A17
I/O6
I/O5
I/O4
V
DD
A10
A11
V
SS
I/O3
I/O2
OE
UB
LB
A13
A4
I/O16
I/O15
I/O14
I/O13
V
SS
A12
44
43
42
41
40
39
38
37
36
A6
A7
A15
A14
A5
A8
A9
A16
35
34
33
I/O10
I/O9
CS2
I/O11
I/O12
V
DD
1
2
OE
LB
3
A0
A3
A5
4
A1
A4
5
A2
CS
6
NC
A6
A7
A16
A15
A13
A8
I/O5
I/O6
WE
I/O1
I/O3
I/O2
I/O4
V
SS
V
CC
I/O15
I/O16
V
CC
V
SS
I/O7
I/O8
A17
I/O9
I/O10
A
B
C
D
E
F
G
H
A9
A10
A11
A12
A17
NC
A14
I/O11
I/O12
I/O13
I/O14
NC
UB
CS2
BLOCK DIAGRAM
CORE CELL ARRAY
1024 ROWS
256 X 8 COLUMNS
DATA
CLK
R
O
W
D
E
C
O
D
E
R
A6
I/O CKT.
COLUMN DECODER
WE
OE
CLK GEN.
PRECHARGE CKT.
A5
A4
A3
A2
A1
A0
CS1
CS2
A17
A16
A15
A14
A13
A12
A10
A8
A7
I/O1
:
I/O16
A9
A11
UB
LB
PIN DESCRIPTION
SYMBOL
A0
A17
I/O1
I/O16
CS
1
CS2
WE
LB
UB
OE
V
DD
V
SS
NC
DESCRIPTION
Address Inputs
Data Inputs/Outputs
Chip Select1 Input
Chip Select2 Input
Write Enable Input
Lower byte select
Upper byte select
Output Enable Input
Power Supply
Ground
No Connection
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