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AT49BV320ST

更新时间： 2024-01-11 19:54:57
品牌 Logo 应用领域
爱特美尔 - ATMEL 存储
页数 文件大小 规格书
6页 177K
描述
32-megabit (2M x 16) Secure 3-volt Only Memory

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中文翻译

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AT49BV320ST 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：,Reach Compliance Code：unknown
风险等级：5.84Base Number Matches：1

AT49BV320ST 数据手册

 浏览型号AT49BV320ST的Datasheet PDF文件第2页浏览型号AT49BV320ST的Datasheet PDF文件第3页浏览型号AT49BV320ST的Datasheet PDF文件第4页浏览型号AT49BV320ST的Datasheet PDF文件第5页浏览型号AT49BV320ST的Datasheet PDF文件第6页 
Features  
•
•
•
Single Voltage Read/Write Operation: 2.65V to 3.6V  
Access Time – 70 ns  
Sector Erase Architecture  
– Sixty-three 32K Word (64K Bytes) Sectors with Individual Write Lockout  
– Eight 4K Word (8K Bytes) Sectors with Individual Write Lockout  
Fast Word Program Time – 10 µs  
•
•
•
Typical Sector Erase Time: 32K Word Sectors – 700 ms; 4K Word Sectors – 100 ms  
Suspend/Resume Feature for Erase and Program  
– Supports Reading and Programming from Any Sector by Suspending Erase  
of a Different Sector  
32-megabit  
(2M x 16)  
Secure  
3-volt Only  
Memory  
– Supports Reading Any Word by Suspending Programming of Any Other Word  
Low-power Operation  
•
– 10 mA Active  
– 15 µA Standby  
•
•
•
•
•
•
•
•
•
VPP Pin for Write Protection and Accelerated Program Operations  
RESET Input for Device Initialization  
Softlock Sector Protection  
Secure Lock and Freeze Feature  
Top or Bottom Boot Block Configuration Available  
128-bit Protection Register  
AT49BV320S  
AT49BV320ST  
Minimum 100,000 Erase Cycles  
Common Flash Interface (CFI)  
CBGA Green (Pb/Halide-free/RoHS Compliant) Packaging  
Summary  
(Complete  
Datasheet  
under NDA)  
1. Description  
The AT49BV320S(T) is a 2.7-volt 32-megabit Flash memory organized as 2,097,152  
words of 16 bits each. The memory is divided into 71 sectors for erase operations.  
The device is offered in a 64-ball CBGA package. The device has CE and OE control  
signals to avoid any bus contention. This device can be read or reprogrammed using  
a single power supply, making it ideally suited for in-system programming.  
In some applications, in addition to the standard softlock sector protection mecha-  
nism, a requirement exists to allow for the permanent and irreversible locking of  
selected region in the memory. The AT49BV320S(T) allows the user to permanently  
lock eight regions, and once activated these secure regions cannot be altered or  
erased through Software or Hardware at any time. Once activated, no facility exists to  
over-ride the secure lock mechanism. The size of each secure region is 32K words,  
and the location of these regions is determined by the Top or Bottom Boot Block des-  
ignation. The location of the secure regions is shown on pages 3 - 4.  
The secure regions can be locked in any sequence and at any time during normal  
device operation. If all eight regions are permanently locked, then program and erase  
operations in 1/8 of the memory will be disabled. Read operations can still be per-  
formed on any region that has the secure lock feature enabled. Full read and write  
operations, standard sector operations including standard Sector locking can be per-  
formed on all regions that are not secure locked.  
NOTE: This is a summary document.  
The complete document is available  
under NDA. For more information,  
please contact your local Atmel sales  
office.  
3532AS–FLASH–9/06  
123456

中文翻译

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