AT49BV320-11UI datasheet(1/30 Pages) ATMEL

Part #	AT49BV320-11UI

Description	32-megabit (2M x 16/4M x 8) 3-volt Only Flash Memory

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Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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Features

• Single Voltage Read/Write Operation: 2.65V to 3.3V (BV), 3.0V to 3.6V (LV)

• Access Time–85ns

• 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 – 15 µs

• Fast Sector Erase Time – 200 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 by Suspending Programming of Any

Other Byte/Word

• Low-power Operation

–25 mA Active

– 10 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

• TSOP, CBGA and µBGA Package Options

• Top or Bottom Boot Block Configuration Available

• 128-bit Protection Register

Description

The AT49BV/LV32X(T) is a 3.0-volt 32-megabit Flash m em or y 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 48-lead TSOP, and

48-ball CBGA and µBGA packages. 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.

32-megabit

(2Mx 16/4Mx8)

3-volt Only

Flash Memory

AT49BV320

AT49BV320T

AT49BV321

AT49BV321T

AT49LV320

AT49LV320T

AT49LV321

AT49LV321T

Recommend Using

AT49BV320A(T)/322A(T)

for New Designs.

Pin Configurations

Pin Name

Function

A0 - A20

Addresses

CE

Chip Enable

OE

Output Enable

WE

Write Enable

RESET

Reset

RDY/BUSY

READY/BUSY Output

VPP

Write Protection

I/O0 - I/O14

Data Inputs/Outputs

I/O15 (A-1)

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

A-1 (LSB Address Input, Byte Mode)

BYTE

Selects Byte or Word Mode

NC

No Connect

VCCQ

Output Power Supply

Rev. 1494H–FLASH–01/03

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AT49BV320-11UI Datasheet(PDF) 1 Page - ATMEL Corporation

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