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参数资料
| 型号： | 41C16257 |
| 厂商： | Integrated Silicon Solution, Inc. |
| 英文描述： | 256K x 16 (4-MBIT) DYNAMIC RAM WITH FAST PAGE MODE |
| 中文描述： | 256K × 16（4兆位）充满活力和快速页面模式内存 |
| 文件页数： | 10/17页 |
| 文件大小： | 160K |
| 代理商： | 41C16257 |
IS41C16257
IS41LV16257
2
Integrated Silicon Solution, Inc. — 1-800-379-4774
DR004-1B
05/24/99
ISSI
FUNCTIONAL BLOCK DIAGRAM
OE
WE
LCAS
UCAS
CAS
WE
OE
DATA I/O BUS
COLUMN DECODERS
SENSE AMPLIFIERS
MEMORY ARRAY
262,144 x 16
ROW
DECODER
DATA
I/O
BUFFERS
CAS
CLOCK
GENERATOR
WE
CONTROL
LOGICS
OE
CONTROL
LOGIC
I/O0-I/O15
RAS
A0-A8
RAS
CLOCK
GENERATOR
REFRESH
COUNTER
ADDRESS
BUFFERS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
VCC
I/O0
I/O1
I/O2
I/O3
VCC
I/O4
I/O5
I/O6
I/O7
NC
WE
RAS
NC
A0
A1
A2
A3
VCC
GND
I/O15
I/O14
I/O13
I/O12
GND
I/O11
I/O10
I/O9
I/O8
NC
LCAS
UCAS
OE
A8
A7
A6
A5
A4
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
VCC
I/O0
I/O1
I/O2
I/O3
VCC
I/O4
I/O5
I/O6
I/O7
NC
WE
RAS
NC
A0
A1
A2
A3
VCC
GND
I/O15
I/O14
I/O13
I/O12
GND
I/O11
I/O10
I/O9
I/O8
NC
LCAS
UCAS
OE
A8
A7
A6
A5
A4
GND
PIN DESCRIPTIONS
A0-A8
Address Inputs
I/O0-I/O15
Data Inputs/Outputs
WE
Write Enable
OE
Output Enable
RAS
Row Address Strobe
UCAS
Upper Column Address
Strobe
LCAS
Lower Column Address
Strobe
Vcc
Power
GND
Ground
NC
No Connection
40-Pin SOJ
PIN CONFIGURATIONS
40-Pin TSOP (Type II)
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