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PDF ( 数据手册 , 数据表 ) W24258-70LI

零件编号 W24258-70LI
描述 32K X 8 CMOS STATIC RAM
制造商 Winbond
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W24258-70LI 数据手册, 描述, 功能
W24258
32K × 8 CMOS STATIC RAM
GENERAL DESCRIPTION
The W24258 is a normal speed, very low power CMOS static RAM organized as 32768 × 8 bits that
operates on a wide voltage range from 2.7V to 5.5V power supply. The W24258 family, W24258-
70LE and W24258-70LI, can meet requirement of various operating temperature. This device is
manufactured using Winbond's high performance CMOS technology.
FEATURES
Low power consumption:
Active: 350 mW (max.)
Standby: 6 µW (max.)/3V
25 µW (max.)/5V
Access time: 70 nS (max.)/5V
100 nS (max.)/3V
Single 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 28-pin 600 mil DIP, 330 mil SOP
and standard type one TSOP (8 mm × 13.4
mm)
PIN CONFIGURATIONS
BLOCK DIAGRAM
A14 1
28
A12 2
27
A7 3
26
A6 4
25
A5 5
24
A4 6
A3 7
23
28-pin
DIP 22
A2 8
21
A1 9
20
A0 10
19
I/O1 11
18
I/O2 12
17
I/O3
VSS
13
14
16
15
VDD
WE
A13
A8
A9
A11
OE
A10
CS
I/O8
I/O7
I/O6
I/O5
I/O4
OE 1
A11 2
A9 3
A8 4
A13 5
WE 6
VDD 7
A14 8
A12 9
A7 1
A6 0
A5 1
A4 1
A3 1
2
28-pin
TSOP
28 A10
27 CS
26 I/O8
25 I/O7
24 I/O6
23 I/O5
22 I/O4
21 VSS
20 I/O3
19 I/O2
18 I/O1
17 A0
16 A1
15 A2
CLK GEN.
PRECHARGE CKT.
A12
A14
R
A2 O
W CORE CELL ARRAY
A3
A4
D
E
512 ROWS
A5
C
O
64 X 8 COLUMNS
D
A6 E
R
A7
A13
I/O1 DATA
I/O CKT.
I/O8 CNTRL. COLUMN DECODER
CLK
GEN.
A11 A10 A1 A0 A8 A9
WE
CS
OE
PIN DESCRIPTION
SYMBOL
A0A14
I/O1I/O8
CS
WE
OE
VDD
VSS
DESCRIPTION
Address Inputs
Data Inputs/Outputs
Chip Select Input
Write Enable Input
Output Enable Input
Power Supply
Ground
Publication Release Date: November 1998
- 1 - Revision A8







W24258-70LI pdf, 数据表
W24258
BONDING PAD DIAGRAM
6 5 4 3 2 1 28 28 27 26 25 24 23
S-2 S-1
A4 A5 A6 A7 A1 A1 VDD VDD WE A13 A8 A9 A11
7 24
22
A
3
OE
Y
X
21
8 A10
A2
9
10
11
12
13
14 14 15
S-1 S-2
16
17
18
19
20
A1 A0 I/O1 I/O2 I/O3 VSS VSS I/O4 I/O3 I/O6 I/O7 I/O8 CS
PAD NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14S-1
14S-2
15
16
17
18
19
20
21
22
23
24
25
26
27
28S-1
28S-2
X
-276.73
-421.97
-568.93
-714.17
-861.13
-1006.37
-1190.70
-1190.70
-1023.69
-878.45
-730.05
-584.79
-438.69
-293.69
-152.23
-9.22
437.42
582.68
730.42
875.68
1025.65
1189.20
1188.70
1025.68
878.72
733.48
586.52
441.28
18.40
-131.73
Y
2047.90
2047.90
2047.90
2047.90
2047.90
2047.90
1796.55
-1797.65
-2049.00
-2049.00
-2049.00
-2049.00
-2049.00
-2049.00
-2049.00
-2049.00
-2049.00
-2049.00
-2049.00
-2049.00
-2049.00
-1797.65
1796.55
2047.90
2047.90
2047.90
2047.90
2047.90
2047.90
2047.90
Note: For bare chip form (C.O.B.) applications, the substrate must be connected to VDD or left floating in the PCB layout.
-8-














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