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NM27C256Q250 PDF预览

NM27C256Q250

更新时间: 2024-11-16 15:46:39
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 可编程只读存储器内存集成电路
页数 文件大小 规格书
11页 110K
描述
UVPROM, 32KX8, 200ns, CMOS, CDIP28, WINDOWED, CERDIP-28

NM27C256Q250 技术参数

生命周期:Obsolete零件包装代码:DIP
包装说明:WDIP,针数:28
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.32.00.61风险等级:5.15
最长访问时间:200 nsJESD-30 代码:R-GDIP-T28
内存密度:262144 bit内存集成电路类型:UVPROM
内存宽度:8功能数量:1
端子数量:28字数:32768 words
字数代码:32000工作模式:ASYNCHRONOUS
最高工作温度:70 °C最低工作温度:
组织:32KX8封装主体材料:CERAMIC, GLASS-SEALED
封装代码:WDIP封装形状:RECTANGULAR
封装形式:IN-LINE, WINDOW并行/串行:PARALLEL
认证状态:Not Qualified最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):4.5 V标称供电电压 (Vsup):5 V
表面贴装:NO技术:CMOS
温度等级:COMMERCIAL端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
宽度:15.24 mmBase Number Matches:1

NM27C256Q250 数据手册

 浏览型号NM27C256Q250的Datasheet PDF文件第2页浏览型号NM27C256Q250的Datasheet PDF文件第3页浏览型号NM27C256Q250的Datasheet PDF文件第4页浏览型号NM27C256Q250的Datasheet PDF文件第5页浏览型号NM27C256Q250的Datasheet PDF文件第6页浏览型号NM27C256Q250的Datasheet PDF文件第7页 
July 1998  
NM27C256  
262,144-Bit (32K x 8) High Performance CMOS EPROM  
The NM27C256 is one member of a high density EPROM Family  
which range in densities up to 4 Mb.  
General Description  
The NM27C256 is a 256K Electrically Programmable Read Only  
Memory. It is manufactured in Fairchild’s latest CMOS split gate  
EPROM technology which enables it to operate at speeds as fast  
as 90 ns access time over the full operating range.  
Features  
High performance CMOS  
90 ns access time  
The NM27C256 provides microprocessor-based systems exten-  
JEDEC standard pin configuration  
sive storage capacity for large portions of operating system and  
— 28-pin PDIP package  
application software. Its 90 ns access time provides high speed  
— 32-pin chip carrier  
operation with high-performance CPUs. The NM27C256 offers a  
— 28-pin CERDIP package  
single chip solution for the code storage requirements of 100%  
Drop-in replacement for 27C256 or 27256  
firmware-based equipment. Frequently-used software routines  
are quickly executed from EPROM storage, greatly enhancing  
system utility.  
Manufacturer’s identification code  
The NM27C256 is configured in the standard EPROM pinout  
which provides an easy upgrade path for systems which are  
currently using standard EPROMs.  
Block Diagram  
Data Outputs O - O  
0
7
V
CC  
GND  
V
PP  
OE  
Output Enable  
and Chip Enable Logic  
Output  
Buffers  
CE/PGM  
Y Decoder  
Y Gating  
A
- A  
14  
0
Address  
Inputs  
X Decoder  
DS010833-1  
1
© 1998 Fairchild Semiconductor Corporation  
www.fairchildsemi.com  

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