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29F0408RPFI

32 Megabit (4M x 8-bit) flash memory

MAXWELL TECHNOLOGIES 

29F0408

32 Megabit (4M x 8-Bit)

Flash Memory

FEATURES:

• Single 5.0 V supply

• Excellent Single Event Effect

· - SELTH: > 60 MeV/mg/cm2

· - SEUTH: = 37 MeV/mg/cm2

- SEU saturated cross section: 2E-6 cm2/bit

• Organization:

- Memory cell array: (4M + 128k) bit x 8bit

- Data register: (512 + 16) bit x 8bit

• Automatic program and erase

- Page program: (512 + 16) Byte

- Block erase: (8K + 256) Byte

- Status register

• 528-Byte page read operation

- Random access: 10 µ s (max)

- Serial page access: 50 ns (min)

• Fast write cycle time

- Program time: 250 µ s (typ)

- Block erase time: 2 ms (typ)

• Command/address/data multiplexed I/O port

• Hardware data protection

- Program/erase lockout during power transitions

• Reliable CMOS floating-gate technology

- Endurance: 1,000,000 program/erase cycles

- Data retention: 10 years

• Command register operation

• 44 pin flat package

Logic Diagram

DESCRIPTION:

Maxwell Technologies’ 29F0408 high-performance flash mem-

ory. The 29F0408 is a 4M (4,194,304) x 8-bit NAND Flash

Memory with a spare 128K (131,072) x 8-bit. A program oper-

ation programs the 528-byte page in 250 µ s and an erase

operation can be performed in 2 ms on an 8K-byte block. Data

within a page can be read out at 50 ns cycle time per byte.

The on-chip write controller automates all program and erase

functions, including pulse repetition, where required, and inter-

nal verify and margining of data. Even write-intensive systems

can take advantage of the 29F0408’s extended reliability of

1,000,000 program/erase cycles by providing either ECC

(Error Correction Code) or real time mapping-out algorithm.

These algorithms have been implemented in many mass stor-

age applications. The spare 16 bytes of a page combined with

the other 512 bytes can be utilized by system-level ECC. The

29F0408 is an optimum solution for large non-volatile storage

applications such as solid state storage, digital voice recorder,

digital still camera and other portable applications requiring

nonvolatility.

Maxwell Technologies' patented RAD-PAK® packaging technol-

ogy incorporates radiation shielding in the microcircuit pack-

age. Capable of surviving in space environments, the

29F0408 is ideal for satellite, spacecraft, and space probe

missions. It is available with packaging and screening up to

Class S.

11.08.02 Rev 2

(858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com

All data sheets are subject to change without notice 1

©2002 Maxwell Technologies

All rights reserved.

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