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Single-voltage Read/Write Operation: 2.7V to 3.6V (BV), 3.0V to 3.6V (LV)

Fast Read Access Time 鈥?90 ns

Internal Erase/Program Control

Sector Architecture

鈥?One 8K Word (16K Bytes) Boot Block with Programming Lockout

鈥?Two 4K Word (8K Bytes) Parameter Blocks

鈥?One 496K Word (992K Bytes) Main Memory Array Block

Fast Sector Erase Time 鈥?10 seconds

Byte-by-byte or Word-by-word Programming 鈥?30 碌s Typical

Hardware Data Protection

Data Polling for End of Program Detection

Low Power Dissipation

鈥?25 mA Active Current

鈥?50 碌A CMOS Standby Current

Typical 10,000 Write Cycles

鈥?/div>

Description

The AT49BV008A(T) and AT49BV8192A(T) are 3-volt, 8-megabit Flash memories

organized as 1,048,576 words of 8 bits each or 512K words of 16 bits each. Manufac-

tured with Atmel鈥檚 advanced nonvolatile CMOS technology, the devices offer access

times to 90 ns with power dissipation of just 67 mW at 2.7V read. When deselected,

the CMOS standby current is less than 50 碌A.

The device contains a user-enabled 鈥渂oot block鈥?protection feature. Two versions of

the feature are available: the AT49BV008A/8192A locates the boot block at lowest

order addresses (鈥渂ottom boot鈥?; the AT49BV008AT/8192AT locates it at highest

order addresses (鈥渢op boot鈥?.

To allow for simple in-system reprogrammability, the AT49BV008A(T)/8192A(T) does

not require high input voltages for programming. Reading data out of the device is

similar to reading from an EPROM; it has standard CE, OE and WE inputs to avoid

(continued)

8-megabit

(1M x 8/

512K x 16)

Flash Memory

AT49BV008A

AT49BV008AT

AT49BV8192A

AT49BV8192AT

AT49LV8192A

Pin Configurations

Pin Name

A0 - A18

CE

OE

WE

RESET

RDY/BUSY

VPP

Function

Addresses

Chip Enable

Output Enable

Write Enable

Reset

Ready/Busy Output

VPP can be left unconnected or

connected to VCC, GND, 5V or 12V.

The input has no effect on the

operation of the device.

Data Inputs/Outputs

I/O15 (Data Input/Output, Word Mode)

A-1 (LSB Address Input, Byte Mode)

Selects Byte or Word Mode

No Connect

Rev. 1049H鈥?6/00

I/O0 - I/O14

I/O15 (A-1)

BYTE

NC

1

制造商
Atmel
產(chǎn)品種類
閃存
數(shù)據(jù)總線寬度
8 bit, 16 bit
存儲類型
NOR
存儲容量
8 Mbit
結構
Sectored
接口類型
Parallel
訪問時間
70 ns
Supply Voltage - Max
3.6 V
Supply Voltage - Min
2.7 V
最大工作電流
25 mA
工作溫度
+ 70 C
安裝風格
SMD/SMT
封裝 / 箱體
TSOP-48
組織
512 KB x 8

AT49BV8192A-90TC相關型號PDF文件下載

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AT49BV8192A-90TC Datasheet

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