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All data sheets are subject to change without notice
(858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com
32 Megabit (4M x 8-Bit)
29F0408
©2002 Maxwell Technologies
All rights reserved.
Flash Memory
11.08.02 Rev 2
FEATURES:
• Single 5.0 V supply
Excellent Single Event Effect
·-SEL
TH
: > 60 MeV/mg/cm
2
·-SEU
TH
: = 37 MeV/mg/cm
2
- SEU saturated cross section: 2E-6 cm
2
/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
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.
Logic Diagram