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参数资料
| 型号： | W26B04B-70LE |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | SRAM |
| 英文描述： | 256K X 16 STANDARD SRAM, 70 ns, PBGA48 |
| 封装： | TFBGA-48 |
| 文件页数： | 1/11页 |
| 文件大小： | 0K |
| 代理商： | W26B04B-70LE |
W26B04
256K
× 16 CMOS STATIC RAM
Publication Release Date: April 2, 2002
- 1 -
Revision A4
GENERAL DESCRIPTION
The W26B04 is a normal speed, very low-power CMOS static RAM organized as 262144
× 16 bits
that operates on a wide voltage range from 2.7V to 3.6V power supply. The W26B04, W26B04-LE and
W26B04-LI, can meet the requirement of various operating temperature. This device is manufactured
using Winbond’ s high performance CMOS technology.
FEATURES
Low power consumption
Access time: 70 nS
2.7V to 3.6V 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/O1I/O8), #UB (I/O9 I/O16)
Available packages: 44-pin type two TSOP,
and TFBGA
PIN CONFIGURATIONS
48-pin TFBGA TOP VIEW
32
28
22
21
20
19
18
17
1
44-pin
TSOP
3
4
5
6
7
8
9
10
11
12
13
14
15
16
2
A10
#OE
I/O1
6
A12
44
43
A6
A
7
A5
A8
A11
A9
#UB
42
41
40
39
35
31
30
29
27
26
25
24
23
38
37
36
34
33
#LB
I/O1
5
I/O1
4
I/O1
3
I/O1
0
I/O1
1
I/O1
2
VDD
VSS
I/O
9
A3
A2
A1
A0
I/O7
I/O6
I/O5
I/O4
I/O8
V SS
I/O3
I/O2
I/O1
A13
A4
#WE
A15
V DD
A14
A16
A17
#CS
NC
A
B
C
D
E
F
G
H
1
2
3
4
5
6
A0
A1
NC
A3
A6
A8
I/O5
A2
A4
A7
I/O1
I/O6
I/O2
VSS
VDD
VSS
I/O7
NC
I/O3
I/O9
A16
A15
I/O4
A9
A10
A11
A12
A13
A17
#OE
#CS
#WE
I/O8
I/O10
A14
I/O11
I/O15
I/O16
I/O12
I/O13
I/O14
A5
NC
#LB
NC
#UB
BLOCK DIAGRAM
CORE CELL ARRAY
1024 ROWS
256 X 16 COLUMNS
DATA
CNTRL.
CLK
GEN.
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
#CS
A17
A16
A15
A14
A13
A12
A10
A8
A7
I/O1
I/O16
:
A9
A11
#UB
#LB
PIN DESCRIPTION
SYMBOL
DESCRIPTION
A0
A17
Address Inputs
I/O1
I/O16
Data Inputs/Outputs
#CS
Chip Select Input
#WE
Write Enable Input
#LB
Lower byte select
#UB
Upper byte select
#OE
Output Enable Input
VDD
Power Supply
VSS
Ground
NC
No Connection
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参数描述 |
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