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4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory

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GENERAL DESCRIPTION

The Am29LV400B is a 4 Mbit, 3.0 volt-only Flash memory organized as 524,288 bytes or 262,144 words.

DISTINCTIVE CHARACTERISTICS

¡ö Single power supply operation

¡ª Full voltage range: 2.7 to 3.6 volt read and write

operations for battery-powered applications

¡ª Regulated voltage range: 3.0 to 3.6 volt read

and write operations and for compatibility with

high performance 3.3 volt microprocessors

¡ö Manufactured on 0.35 ?m process technology

¡ª Compatible with 0.5 ?m Am29LV400 device

¡ö High performance

¡ª Full voltage range: access times as fast as 80 ns

¡ª Regulated voltage range: access times as fast

as 70 ns

¡ö Ultra low power consumption (typical values at

5 MHz)

¡ª 200 nA Automatic Sleep mode current

¡ª 200 nA standby mode current

¡ª 7 mA read current

¡ª 15 mA program/erase current

¡ö Flexible sector architecture

¡ª One 16 Kbyte, two 8 Kbyte, one 32 Kbyte, and

seven 64 Kbyte sectors (byte mode)

¡ª One 8 Kword, two 4 Kword, one 16 Kword, and

seven 32 Kword sectors (word mode)

¡ª Supports full chip erase

¡ª Sector Protection features:

A hardware method of locking a sector to

prevent any program or erase operations within

that sector

Sectors can be locked in-system or via

programming equipment

Temporary Sector Unprotect feature allows code

changes in previously locked sectors

¡ö Unlock Bypass Program Command

¡ª Reduces overall programming time when

issuing multiple program command sequences

¡ö Top or bottom boot block configurations

available

¡ö Embedded Algorithms

¡ª Embedded Erase algorithm automatically

preprograms and erases the entire chip or any

combination of designated sectors

¡ª Embedded Program algorithm automatically

writes and verifies data at specified addresses

¡ö Minimum 1,000,000 write cycle guarantee per

sector

¡ö Package option

¡ª 48-ball FBGA

¡ª 48-pin TSOP

¡ª 44-pin SO

¡ö Compatibility with JEDEC standards

¡ª Pinout and software compatible with singlepower supply Flash

¡ª Superior inadvertent write protection

¡ö Data# Polling and toggle bits

¡ª Provides a software method of detecting

program or erase operation completion

¡ö Ready/Busy# pin (RY/BY#)

¡ª Provides a hardware method of detecting

program or erase cycle completion

¡ö Erase Suspend/Erase Resume

¡ª Suspends an erase operation to read data from,

or program data to, a sector that is not being

erased, then resumes the erase operation

¡ö Hardware reset pin (RESET#)

¡ª Hardware method to reset the device to reading

array data

AM29LV400BT80FEB¹©Ó¦ÉÌ...

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AM29LV400BT80FEB ²úÆ·Ïà¹ØÐͺÅ

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