AT49BV320 Datasheet

IC型號(hào)：
AT49BV320
PDF描述：
32M bit. 2.7-Volt Read and 2.7-Volt Byte-Write Sectored Flas...
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Features

鈥?/div>

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

鈥?/div>

Access Time 鈥?85 ns

鈥?/div>

Sector Erase Architecture

鈥?/div>

鈥?Sixty-three 32K Word (64K Bytes) Sectors with Individual Write Lockout

鈥?Eight 4K Word (8K Bytes) Sectors with Individual Write Lockout

Fast Word Program Time 鈥?15 碌s

Fast Sector Erase Time 鈥?200 ms

Suspend/Resume Feature for Erase and Program

鈥?Supports Reading and Programming from Any Sector by Suspending Erase

of a Different Sector

鈥?Supports Reading Any Byte/Word by Suspending Programming of Any

Other Byte/Word

Low-power Operation

鈥?25 mA Active

鈥?10 碌A(chǔ) 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 碌BGA Package Options

Top or Bottom Boot Block Configuration Available

128-bit Protection Register

鈥?/div>

32-megabit

(2M x 16/4M x 8)

3-volt Only

Flash Memory

AT49BV320

AT49BV320T

AT49BV321

AT49BV321T

AT49LV320

AT49LV320T

AT49LV321

AT49LV321T

Recommend Using

AT49BV320A(T)/322A(T)

for New Designs.

Description

The AT49BV/LV32X(T) is a 3.0-volt 32-megabit Flash memor 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 碌BGA 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.

Pin Configurations

Pin Name

A0 - A20

RESET

RDY/BUSY

VPP

I/O0 - I/O14

I/O15 (A-1)

BYTE

VCCQ

Function

Addresses

Chip Enable

Output Enable

Write Enable

Reset

READY/BUSY Output

Write Protection

Data Inputs/Outputs

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

A-1 (LSB Address Input, Byte Mode)

Selects Byte or Word Mode

No Connect

Output Power Supply

Rev. 1494H鈥揊LASH鈥?1/03

型號(hào)

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AT49BV320 Datasheet

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