參數(shù)資料
型號(hào)： CY7C266-20JC
廠商： CYPRESS SEMICONDUCTOR CORP
元件分類(lèi)： DRAM
英文描述： 8Kx8 Power-Switched and Reprogrammable PROM
中文描述： 8K X 8 OTPROM, 20 ns, PQCC28
封裝： PLASTIC, LCC-28
文件頁(yè)數(shù)： 1/11頁(yè)
文件大?。?/td> 261K
代理商： CY7C266-20JC
8Kx8 Power-Switched and
Reprogrammable PROM
CY7C266
Cypress Semiconductor Corporation
Document #: 38-04005 Rev. *B
3901 North First Street
San Jose
CA 95134
Revised December 27, 2002
408-943-2600
1CY7C266
Features
CMOS for optimum speed/power
Windowed for reprogrammability
High speed
—20 ns (Commercial)
Low power
—660 mW (Commercial)
Super low standby power
—Less than 85 mW when deselected
EPROM technology 100% programmable
5V
±
10% V
CC
, commercial and military
TTL-compatible I/O
Direct replacement for 27C64 EPROMs
Functional Description
The CY7C266 is a high-performance 8192-word by 8-bit
CMOS PROM. When deselected, the CY7C266 automatically
powers down into a low-power standby mode. It is packaged
in a 600-mil-wide package. The reprogrammable packages
are equipped with an erasure window; when exposed to UV
light, these PROMs are erased and can then be repro-
grammed. The memory cells utilize proven EPROM
floating-gate
technology
programming algorithms.
The CY7C266 is a plug-in replacement for EPROM devices.
The EPROM cell requires only 12.5V for the super voltage and
low-current requirements allow for gang programming. The
EPROM cells allow for each memory location to be tested
100%, as each location is written into, erased, and repeatedly
exercised prior to encapsulation. Each PROM is also tested
for AC performance to guarantee that after customer
programming, the product will meet DC and AC specification
limits.
Reading is accomplished by placing an active LOW signal on
OE and CE. The contents of the memory location addressed
by the address lines (A
0
through A
12
) will become available on
the output lines (O
0
through O
7
).
and
byte-wide
intelligent
LogicBlockDiagram
Pin Configurations
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
17
18
19
20
24
23
22
21
25
28
27
26
Top View
CerDIP
V
CC
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
V
CC
V
CC
NC
A
8
A
9
A
11
OE
A
10
CE
O
7
O
6
O
5
O
4
O
3
A
0
A
1
A
7
A
2
A
3
A
4
A
5
A
6
A
8
A
9
A
10
A
11
A
12
POWER DOWN
O
7
O
6
O
5
O
4
O
3
O
2
O
1
O
0
CE
OE
PROGRAMMABLE
ARRAY
MULTIPLEXER
COLUMN
ADDRESS
12
13
O
0
31
4
5
6
7
8
9
10
11
3 2 1
30
14151617
26
25
24
23
22
21
A
VC
A
6
A
5
A
4
A
3
A
2
A
1
A
0
NC
CE
O
7
O
6
A
9
A
11
NC
OE
A
10
O
G
Top View
A
LCC
A
8
V
O
O
O
181920
27
28
29
32
N
N
N
O
VC
7C266
7C266
ADDRESS
ROW
ADDRESS
相關(guān)PDF資料
PDF描述
CY7C266 8Kx8 Power-Switched and Reprogrammable PROM
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