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AT49BV322A PDF预览

AT49BV322A

更新时间: 2024-10-31 23:00:35
品牌 Logo 应用领域
爱特美尔 - ATMEL /
页数 文件大小 规格书
31页 214K
描述
32-megabit (2M x 16/4M x 8) 3-volt Only Flash Memory

AT49BV322A 数据手册

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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 – 12 µs  
Fast Sector Erase Time – 300 ms  
Suspend/Resume Feature for Erase and Program  
– Supports Reading and Programming from Any Sector by Suspending Erase  
of a Different Sector  
– Supports Reading Any Byte/Word in the Non-suspending Sectors by Suspending  
Programming of Any Other Byte/Word  
Low-power Operation  
32-megabit  
(2M x 16/4M x 8)  
3-volt Only  
– 12 mA Active  
– 13 µA Standby  
Data Polling, Toggle Bit, Ready/Busy for End of Program Detection  
VPP Pin for Write Protection  
RESET Input for Device Initialization  
Sector Lockdown Support  
Flash Memory  
TSOP and CBGA Package Options  
Top or Bottom Boot Block Configuration Available  
128-bit Protection Register  
Minimum 100,000 Erase Cycles  
AT49BV322A  
AT49BV322AT  
Common Flash Interface (CFI)  
Description  
The AT49BV322A(T) is a 2.7-volt 32-megabit Flash memory organized as 2,097,152  
words of 16 bits each or 4,194,304 bytes of 8 bits each. The x16 data appears on I/O0  
- I/O15; the x8 data appears on I/O0 - I/O7. The memory is divided into 71 sectors for  
erase operations. The device is offered in a 48-lead TSOP and a 48-ball CBGA pack-  
age. 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.  
Pin Configurations  
Pin Name  
A0 - A20  
CE  
Function  
Addresses  
Chip Enable  
OE  
Output Enable  
Write Enable  
Reset  
WE  
RESET  
RDY/BUSY  
VPP  
READY/BUSY Output  
Write Protection  
Data Inputs/Outputs  
I/O0 - I/O14  
I/O15 (A-1)  
I/O15 (Data Input/Output, Word Mode)  
A-1 (LSB Address Input, Byte Mode)  
BYTE  
NC  
Selects Byte or Word Mode  
No Connect  
3308H–FLASH–5/04  

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