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MYXX28HC256P-15IT

更新时间： 2024-11-15 04:15:19
品牌 Logo 应用领域
MICROSS 可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数 文件大小 规格书
23页 1076K
描述
EEPROM, 32KX8, 150ns, Parallel, CMOS, CPGA28, PGA-28

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中文翻译

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MYXX28HC256P-15IT 数据手册

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256Kb EEPROM  
MYXX28HC256  
Features  
32K x 8 EEPROM - 5 Volt, Byte Alterable  
•
•
Access Time (ns): 70, 90, 120, 150  
Simple Byte and Page Write  
.Single 5V Supply  
Description  
No External High Voltages or VPP  
2
Control Circuits  
The MYXX28HC256 is a high performance CMOS 32K x 8 E PROM. It is  
.Self-Timed  
fabricated with a textured poly floating gate technology, providing a highly  
reliable 5 Volt only nonvolatile memory.  
No Erase Before Write  
No Complex Programming  
Algorithms  
The MYXX28HC256 supports a 128-byte page write operation, effectively  
providing a 24ms/byte write cycle and enabling the entire memory to  
be typically rewritten in less than 0.8 seconds. The MYXX28HC256 also  
features DATA Polling and Toggle Bit Polling, two methods of providing  
early end of write detection. The MYXX28HC256 also supports the  
JEDEC standard Software Data Protection feature for protecting against  
inadvertent writes during power-up and power-down.  
No Overerase Problem  
Low Power CMOS:  
•
•
.Active: 60mA  
.Standby: 500mA  
Software Data Protection  
.Protects Data Against System Level  
Inadvertent Writes  
•
•
High Speed Page Write Capability  
Highly Reliable Direct Write™ Cell  
.Endurance: 100,000 Write Cycles  
.Data Retention: 100 Years  
Early End of Write Detection  
.DATA Polling  
Endurance for the MYXX28HC256 is specified as a minimum 100,000  
write cycles per byte and an inherent data retention of 100 years.  
•
CerDIP or  
Flat Pack  
Ce r SOJ o r  
Ce r LCC  
.Toggle Bit Polling  
I/O1  
12  
I/O2  
13  
I/O3  
15  
I/O5  
17  
I/O6  
18  
Options  
Markings  
A14  
1
28  
V
CC  
A
2
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
WE#  
70 ns access  
90 ns access  
120 ns access  
150 ns access  
-7  
-9  
12  
Timing  
4
3
2
1
32 31 30  
29  
I/O0  
A0  
VSS  
I/O4  
I/O7  
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
3
A
13  
11  
10  
14  
16  
19  
A
A
A
A
A
A
A
5
6
7
8
9
A
A
A
6
5
4
3
2
1
0
8
4
A
8
A
9
28  
27  
26  
25  
24  
23  
22  
21  
-12  
-15  
9
5
A1  
9
A2  
8
CE  
20  
A10  
21  
11  
6
A
11  
NC  
7
OE#  
MYX28C32K8  
OE#  
8
A
A3  
7
A4  
6
OE  
22  
A11  
23  
Ceramic flat pack  
CerDIP, 600 mil  
CerLCC  
F
Packages  
10  
10  
11  
12  
13  
A
10  
9
CE#  
CW  
ECA  
P
CE#  
10  
11  
12  
13  
14  
I/O  
7
I/O  
6
I/O  
5
I/0  
4
NC  
I/O  
7
I/O  
6
A5  
5
A12  
2
VCC  
28  
A9  
24  
A8  
25  
I/O  
0
I/O  
1
I/O  
2
I/O  
0
CerPGA  
14 15 16 17 18 19 20  
CerSOJ  
ECJ  
A6  
4
A7  
3
A14  
1
WE  
27  
A13  
26  
V
I/O  
3
SS  
Military (-55°C to +125°C)  
Industrial (-40°C to +85°C)  
XT  
IT  
Operating  
Temp.  
Figure 1 - Pin Configuration  
MYXX28HC256  
Revision 1.4 - 02/13  
1
1234567...23

中文翻译

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