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AT28BV256-20PU PDF预览

AT28BV256-20PU

更新时间: 2024-11-28 06:38:19
品牌 Logo 应用领域
爱特美尔 - ATMEL 电池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
18页 291K
描述
256K (32K x 8) Battery-Voltage Parallel EEPROMs

AT28BV256-20PU 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:DIP包装说明:DIP, TSSOP28,.53,22
针数:28Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.32.00.51
风险等级:5.75最长访问时间:200 ns
命令用户界面:NO数据轮询:YES
耐久性:10000 Write/Erase CyclesJESD-30 代码:R-PDIP-T28
长度:37.0205 mm内存密度:262144 bit
内存集成电路类型:EEPROM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:85 °C
最低工作温度:-40 °C组织:32KX8
封装主体材料:PLASTIC/EPOXY封装代码:DIP
封装等效代码:TSSOP28,.53,22封装形状:RECTANGULAR
封装形式:IN-LINE页面大小:64 words
并行/串行:PARALLEL电源:3/3.3 V
编程电压:3 V认证状态:Not Qualified
座面最大高度:4.826 mm最大待机电流:0.00005 A
子类别:EEPROMs最大压摆率:0.015 mA
最大供电电压 (Vsup):3.6 V最小供电电压 (Vsup):2.7 V
标称供电电压 (Vsup):3 V表面贴装:NO
技术:CMOS温度等级:INDUSTRIAL
端子形式:THROUGH-HOLE端子节距:2.54 mm
端子位置:DUAL切换位:YES
宽度:15.24 mm最长写入周期时间 (tWC):10 ms
Base Number Matches:1

AT28BV256-20PU 数据手册

 浏览型号AT28BV256-20PU的Datasheet PDF文件第2页浏览型号AT28BV256-20PU的Datasheet PDF文件第3页浏览型号AT28BV256-20PU的Datasheet PDF文件第4页浏览型号AT28BV256-20PU的Datasheet PDF文件第5页浏览型号AT28BV256-20PU的Datasheet PDF文件第6页浏览型号AT28BV256-20PU的Datasheet PDF文件第7页 
Features  
Single 2.7V - 3.6V Supply  
Fast Read Access Time – 200 ns  
Automatic Page Write Operation  
– Internal Address and Data Latches for 64 Bytes  
– Internal Control Timer  
Fast Write Cycle Times  
– Page Write Cycle Time: 10 ms Maximum  
– 1- to 64-byte Page Write Operation  
Low Power Dissipation  
256K (32K x 8)  
Battery-Voltage  
Parallel  
– 15 mA Active Current  
– 20 µA CMOS Standby Current  
Hardware and Software Data Protection  
Data Polling for End of Write Detection  
High Reliability CMOS Technology  
– Endurance: 10,000 Cycles  
EEPROMs  
– Data Retention: 10 Years  
JEDEC Approved Byte-wide Pinout  
Industrial Temperature Ranges  
Green (Pb/Halide-free) Packaging Option  
AT28BV256  
1. Description  
The AT28BV256 is a high-performance electrically erasable and programmable read-  
only memory. Its 256K of memory is organized as 32,768 words by 8 bits. Manufac-  
tured with Atmel’s advanced nonvolatile CMOS technology, the device offers access  
times to 200 ns with power dissipation of just 54 mW. When the device is deselected,  
the CMOS standby current is less than 200 µA.  
The AT28BV256 is accessed like a Static RAM for the read or write cycle without the  
need for external components. The device contains a 64-byte page register to allow  
writing of up to 64 bytes simultaneously. During a write cycle, the addresses and 1 to  
64 bytes of data are internally latched, freeing the address and data bus for other  
operations. Following the initiation of a write cycle, the device will automatically write  
the latched data using an internal control timer. The end of a write cycle can be  
detected by Data polling of I/O7. Once the end of a write cycle has been detected a  
new access for a read or write can begin.  
Atmel’s AT28BV256 has additional features to ensure high quality and manufactura-  
bility. The device utilizes internal error correction for extended endurance and  
improved data retention characteristics. An optional software data protection mecha-  
nism is available to guard against inadvertent writes. The device also includes an  
extra 64 bytes of EEPROM for device identification or tracking.  
0273J–PEEPR–10/06  

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AT28BV256-20TI ATMEL

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AT28BV256-20TU ATMEL

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AT28BV256-20TU MICROCHIP

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IC EEPROM 256KBIT 200NS 28TSOP