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參數(shù)資料
| 型號： | CY7C195B-25PC |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | DRAM |
| 英文描述： | 256 Kb (64K x 4) Static RAM |
| 中文描述： | 64K X 4 STANDARD SRAM, 25 ns, PDIP28 |
| 封裝： | 6.90 X 35.60 MM, 3.50 MM HEIGHT, DIP-28 |
| 文件頁數(shù)： | 4/13頁 |
| 文件大?。?/td> | 256K |
| 代理商： | CY7C195B-25PC |
CY7C194B
CY7C195B
Document #: 38-05409 Rev. *A
Page 4 of 13
CY7C195B Truth Table
CY7C194B Truth Table
Pin Description
Pin
Type
Input
Description
28 DIP
2, 3, 4, 5, 6,
7, 8, 9, 10,
11, 22, 23,
24, 25, 26,
27
12
16, 17, 18,
19
1, 20, 21
24 DIP
1, 2, 3, 4, 5,
6, 7, 8, 9,
10, 18, 19,
20, 21, 22,
23
11
14, 15, 16,
17
–
24 SOJ
1, 2, 3, 4, 5,
6, 7, 8, 9,
10, 18, 19,
20, 21, 22,
23
11
14, 15, 16,
17
–
28 SOJ
2, 3, 4, 5, 6,
7, 8, 9, 10,
11, 22, 23,
24, 25, 26,
27
12
16, 17, 18,
19
1, 20, 21
A
X
Address Inputs
.
CE
I/O
X
Control
Input or
Output
–
Chip Enable
.
Data Input/Outputs
.
NC
No Connect
. Pins are not internally connected to
the die.
Output Enable (CY7C195 only)
.
Power (5.0V)
.
Write Enable
.
OE
V
CC
WE
Control
Supply
Control
13
28
15
–
24
13
–
13
28
15
24
13
CE
H
OE
X
WE
X
I/Ox
High Z
Mode
Deselect / Power-Down
Power
Standby (I
SB
)
Active (I
CC
)
Active (I
CC
)
Active (I
CC
)
L
L
L
X
H
L
Data Out
Data In
Read
Write
L
H
H
High Z
Selected, outputs disabled
CE
H
L
WE
X
H
Input/Output
High Z
Data Out
Mode
Power-Down
Read
Power
Standby (I
SB
)
Active (I
CC
)
Active (I
CC
)
L
L
Data In
Write
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|---|---|
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CY7C196-20VC | 制造商:Cypress Semiconductor 功能描述: |
| CY7C196-25VC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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