Datasheet > A29040L-55

A29040L-55

更新时间： 2024-11-22 22:47:19

品牌	Logo	应用领域
联笙电子 - AMICC		/
页数	文件大小	规格书
30页	289K
描述
512K X 8 Bit CMOS 5.0 Volt-only, Uniform Sector Flash Memory

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A29040L-55 数据手册

A29040 Series

512K X 8 Bit CMOS 5.0 Volt-only,

Uniform Sector Flash Memory

Preliminary

Features

- Embedded Program algorithm automatically writes

and verifies bytes at specified addresses

nTypical 100,000 program/erase cycles per sector

n20-year data retention at 125°C

n5.0V ± 10% for read and write operations

nAccess times:

- 55/70/90/120/150 (max.)

nCurrent:

- 20 mA typical active read current

- 30 mA typical program/erase current

- 1 mA typical CMOS standby

- Reliable operation for the life of the system

nCompatible with JEDEC-standards

- Pinout and software compatible with single-power-

supply Flash memory standard

nFlexible sector architecture

- Superior inadvertent write protection

- 8 uniform sectors of 64 Kbyte each

- Any combination of sectors can be erased

- Supports full chip erase

Polling and toggle bits

Data

- Provides a software method of detecting completion

of program or erase operations

- Sector protection:

A hardware method of protecting sectors to prevent

any inadvertent program or erase operations within

that sector

nErase Suspend/Erase Resume

- Suspends a sector erase operation to read data

from, or program data to, a non-erasing sector, then

resumes the erase operation

nEmbedded Erase Algorithms

- Embedded Erase algorithm will automatically erase

the entire chip or any combination of designated

sectors and verify the erased sectors

nPackage options

- 32-pin P-DIP, PLCC, or TSOP(Forward type)

General Description

The A29040 is a 5.0 volt-only Flash memory organized as

524,288 bytes of 8 bits each. The 512 Kbytes of data are

further divided into eight sectors of 64 Kbytes each for

flexible sector erase capability. The 8 bits of data appear

on I/O0 - I/O7 while the addresses are input on A0 to A18.

The A29040 is offered in 32-pin PLCC, TSOP, and PDIP

packages. This device is designed to be programmed in-

system with the standard system 5.0 volt VCC supply.

Additional 12.0 volt VPP is not required for in-system write

or erase operations. However, the A29040 can also be

programmed in standard EPROM programmers.

The A29040 has a second toggle bit, I/O2, to indicate

whether the addressed sector is being selected for erase,

and also offers the ability to program in the Erase Suspend

mode. The standard A29040 offers access times of 55, 70,

90, 120, and 150 ns, allowing high-speed microprocessors

to operate without wait states. To eliminate bus contention

The A29040 is entirely software command set compatible

with the JEDEC single-power-supply Flash standard.

Commands are written to the command register using

standard microprocessor write timings. Register contents

serve as input to an internal state-machine that controls

the erase and programming circuitry. Write cycles also

internally latch addresses and data needed for the

programming and erase operations. Reading data out of

the device is similar to reading from other Flash or EPROM

devices.

Device programming occurs by writing the proper program

command sequence. This initiates the Embedded Program

algorithm - an internal algorithm that automatically times

the program pulse widths and verifies proper program

margin.

Device erasure occurs by executing the proper erase

command sequence. This initiates the Embedded Erase

algorithm

- an internal algorithm that automatically

the device has separate chip enable (

), write enable

preprograms the array (if it is not already programmed)

before executing the erase operation. During erase, the

device automatically times the erase pulse widths and

verifies proper erase margin.

(

) and output enable (

) controls.

The device requires only a single 5.0 volt power supply for

both read and write functions. Internally generated and

regulated voltages are provided for the program and erase

operations.

PRELIMINARY

(August, 2001, Version 0.5)

AMIC Technology, Inc.

12 3 4 5 6 7...30

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A29040P-70	ETC	获取价格	IC-4M FLASH
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A29040V-120	AMICC	获取价格	512K X 8 Bit CMOS 5.0 Volt-only, Uniform Sector Flash Memory
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A29040V-55	AMICC	获取价格	512K X 8 Bit CMOS 5.0 Volt-only, Uniform Sector Flash Memory
A29040V-70	AMICC	获取价格	512K X 8 Bit CMOS 5.0 Volt-only, Uniform Sector Flash Memory
A29040V-90	AMICC	获取价格	512K X 8 Bit CMOS 5.0 Volt-only, Uniform Sector Flash Memory
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