音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

CY27C256-90WMB Datasheet

  • CY27C256-90WMB

  • 32K x 8-Bit CMOS EPROM

  • 11頁

  • CYPRESS

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

1CY 27C2 56
fax id: 3013
CY27C256
32K x 8-Bit CMOS EPROM
Features
鈥?Wide speed range
鈥?45 ns to 200 ns (commercial and military)
鈥?Low power
鈥?248 mW (commercial)
鈥?303 mW (military)
鈥?Low standby power
鈥?Less than 83 mW when deselected
鈥?/div>
鹵10%
Power supply tolerance
able in a CerDIP package equipped with an erasure window
to provide for reprogrammability. When exposed to UV light,
the EPROM is erased and can be reprogrammed. The mem-
ory cells utilize proven EPROM floating gate technology and
byte-wide intelligent programming algorithms.
The CY27C256 offers the advantage of lower power and su-
perior performance and programming yield. The EPROM cell
requires only 12.5V for the super voltage, and low current re-
quirements allow for gang programming. The EPROM cells
allow each memory location to be tested 100% because each
location is written into, erased, and repeatedly exercised prior
to encapsulation. Each EPROM is also tested for AC perfor-
mance to guarantee that after customer programming, the
product will meet both DC and AC specification limits.
Reading the CY27C256 is accomplished by placing active
LOW signals on OE and CE. The contents of the memory location
addressed by the address lines (A
0
- A
14
) will become available on
the output lines (O
0
- O
7
).
Functional Description
The CY27C256 is a high-performance 32,768-word by 8-bit
CMOS EPROM. When disabled (CE HIGH), the CY27C256
automatically powers down into a low-power stand-by mode.
The CY27C256 is packaged in the industry standard 600-mil
DIP, PLCC, and TSOP packages. The CY27C256 is also avail-
Logic Block Diagram
A
14
A
13
A
12
A
11
A
10
A
9
A
8
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
POWER鈥揇OWN
O
1
COLUMN
ADDRESS
O
2
O
3
ADDRESS
DECODER
O
4
ROW
ADDRESS
256 x 1024
PROGRAMABLE
ARRAY
8 x 1 OF 128
MULTIPLEXER
O
7
Pin Configurations
DIP/Flatpack
O
6
V
PP
A
12
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
O
0
O
1
O
2
GND
1
28
2
27
3
26
4
25
5
24
6 27C256 23
22
7
8
21
9
20
10
19
11
18
12
17
13
16
14
15
V
CC
A
14
A
13
A
8
A
9
A
11
OE
A
10
CE
O
7
O
6
O
5
O
4
O
3
27c256鈥?
LCC/PLCC
[1]
4 3 2 1 32 31 30
29
5
28
27C256
6
27
7
26
8
25
9
24
10
23
11
22
12
21
13
14151617 181920
O
5
A
6
A
5
A
4
A
3
A
2
A
1
A
0
NC
O
0
A
8
A
9
A
11
NC
OE
A
10
CE
O
7
O
6
27c256鈥?
O
0
CE
27c256鈥?
OE
Note:
1. For PLCC only: Pins 1 and 17 are common and tied to the die attach pad. They must therefore be DU (don鈥檛 use) for the PLCC package.
Cypress Semiconductor Corporation
鈥?/div>
3901 North First Street
鈥?/div>
San Jose
鈥?/div>
CA 95134 鈥?/div>
408-943-2600
May 1993 鈥?Revised August 1994

CY27C256-90WMB相關(guān)型號PDF文件下載

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時間周一至周五
9:00-17:30

關(guān)注官方微信號，
第一時間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動力！意見一經(jīng)采納，將有感恩紅包奉上哦！