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參數(shù)資料
| 型號(hào)： | CY7C1046 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | 1M x 4 Static RAM(4M靜態(tài)RAM) |
| 中文描述： | 100萬× 4靜態(tài)存儲(chǔ)器（4分靜態(tài)RAM）的 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大小： | 129K |
| 代理商： | CY7C1046 |
ADVANCED INFORMATION
1M x 4 Static RAM
CY7C1046
Cypress Semiconductor Corporation
3901 North First Street
San Jose
CA 95134
408-943-2600
June 4, 1999
Features
High speed
—t
AA
= 10 ns
Low active power
—1018 mW (max.)
Low CMOS standby power(L version)
—2.75 mW (max.)
2.0V Data Retention (400
μ
W at 2.0V retention)
Automatic power-down when deselected
TTL-compatible inputs and outputs
Easy memory expansion with CE and OE features
Functional Description
The CY7C1046 is a high-performance CMOS static RAM or-
ganized as 1,048,576 words by 4 bits. Easy memory expan-
sion is provided by an active LOW Chip Enable (CE), an active
LOW Output Enable (OE), and three-state drivers. Writing to
the device is accomplished by taking Chip Enable (CE) and
Write Enable (WE) inputs LOW. Data on the fourI/O pins (I/O
0
through I/O
3
) is then written into the location specified on the
address pins (A
0
through A
19
).
Reading from the device is accomplished by taking Chip
Enable (CE) and Output Enable (OE) LOW while forcing Write
Enable (WE) HIGH. Under these conditions, the contents of
the memory location specified by the address pins will appear
on the I/O pins.
The four input/output pins (I/O
0
through I/O
3
) are placed in a
high-impedance state when the device is deselected (CE
HIGH), the outputs are disabled (OE HIGH), or during a write
operation (CE LOW, and WE LOW).
The CY7C1046 is available in a standard 400-mil-wide 32-pin
SOJ package with center power and ground (revolutionary)
pinout.
Pin Configuration
1
A
1
A
Logic Block Diagram
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
A
9
A
10
COLUMN
DECODER
R
S
INPUT BUFFER
POWER
DOWN
WE
OE
I/O
0
I/O
1
1M x 4
ARRAY
I/O
3
I/O
2
A
0
A
1
A
1
A
1
CE
A
1
A
1
1
2
3
4
5
6
7
8
9
10
11
12
13
21
20
22
25
24
23
28
27
26
Top View
SOJ
29
32
31
30
14
15
19
18
GND
I/O
1
A
1
A
2
A
3
A
4
CE
A
5
A
6
A
7
A
8
A
9
WE
V
CC
I/O
2
A
18
A
17
A
16
A
15
OE
I/O
3
A
12
A
11
A
14
A
13
1046–1
A
0
I/O
0
V
CC
1046–2
A
1
16
17
GND
A
10
NC
A
19
A
1
Selection Guide
7C1046-10
10
185
8
0.5
7C1046-12
12
170
8
0.5
7C1046-15
15
150
8
0.5
Maximum Access Time (ns)
Maximum Operating Current (mA)
Maximum CMOS Standby
Current (mA)
Com’l
L version
Shaded areas contain pre-release information.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
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| CY7C1046CV33-12VCT | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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