79LV0408
Low Voltage 4 Megabit
(512k x 8-bit) EEPROM
CE
CE
CE
3
CE
4
1
2
RES
R/ B
WE
OE
A0-16
128Kx 8
128Kx 8
128Kx 8
128Kx 8
I/O
0-7
Logic Diagram
FEATURES:
DESCRIPTION:
• Four 128k x 8-bit EEPROMs MCM
• RAD-PAK® radiation-hardened against natural
space radiation
Maxwell Technologies’ 79LV0408 multi-chip module (MCM)
memory features a greater than 100 krad (Si) total dose toler-
ance, depending upon space mission. Using Maxwell Technol-
ogies’ patented radiation-hardened RAD-PAK® MCM
packaging technology, the 79LV0408 is the first radiation-
hardened 4 Megabit MCM EEPROM for space applications.
The 79LV0408 uses four 1 Megabit high-speed CMOS die to
yield a 4 Megabit product. The 79LV0408 is capable of in-sys-
tem electrical Byte and Page programmability. It has a 128
bytes Page Programming function to make its erase and write
operations faster. It also features Data Polling and a Ready/
Busy signal to indicate the completion of erase and program-
ming operations. In the 79LV0408, hardware data protection is
provided with the RES pin, in addition to noise protection on
the WE signal. Software data protection is implemented using
the JEDEC optional standard algorithm.
• Total dose hardness:
- > 100 krad (Si), depending upon space mission
• Excellent Single Event Effects
- SEL > 120 MeV/mg/cm2
- SEU > 90 MeV/mg/cm2 read mode
- SEU = 18 MeV/mg/cm2 write mode
• Package:
• - 40 pin RAD-PAK® flat pack
• - 40 pin X-Ray PakTM flat pack
• - 40 pin Rad-Tolerant flat pack
• High speed:
-200 and 250 ns access times
available
• Data Polling and Ready/Busy signal
• Software data protection
• Write protection by RES pin
• High endurance
- 10,000 erase/write (in Page Mode),
- 10 year data retention
• Page write mode: 1 to 128 byte page
• Low power dissipation
Maxwell Technologies' patented RAD-PAK® packaging technol-
ogy incorporates radiation shielding in the microcircuit pack-
age. It eliminates the need for box shielding while providing
the required radiation shielding for a lifetime in orbit or space
mission. In a GEO orbit, the RAD-PAK® package provides
greater than 100 krad (Si) radiation dose tolerance. This prod-
uct is available with screening up to Maxwell Technologies
self-defined Class K.
- 88 mW/MHz active mode
- 440 µW standby mode
01.11.05 Rev 7
1
All data sheets are subject to change without notice
(858) 503-3300 - Fax: (858) 503-3301- www.maxwell.com
©2005 Maxwell Technologies
All rights reserved.
MAXWELL [ MAXWELL TECHNOLOGIES ]
