Rad hard Components For Space
Space Scene
Components
79C0408 EEPROM MCM, 4Mb (512k x 8-bit)
EEPROM ImageEEPROM
Package(s) :
40-Pin RAD-PAK® Flat Pack
Memory Size:
Four 128k x 8 Bit
Voltage:
5.0V low voltage
Access Time:
120, 150, or 200ns
Radiation Performance:
RAD-PAK® radiation-hardened against natural space radiation
> 100 krad (Si) Dependent upon orbit
SEL > 120 MeV/mg/cm2
SEU > 90 MeV/mg/cm2 read mode
 
Specifications At A Glance
High speed:
  • 120, 150, and 200 ns maximum access times available
High endurance:
  • 10,000 erase/write (in Page Mode), 10-year data retention
Page write mode:
  • 1 to 128 byte page
Low power dissipation:
  • 88 mW/MHz active mode
  • 440 µW standby mode
Data Polling and Ready/Busy signal
Software data protection
Write protection by RES pin
 

Maxwell Technologies’ 79C0408 multi-chip module (MCM) memory features a greater than 100 krad (Si) total dose tolerance, dependent upon orbit. Using Maxwell Technologies’ patented radiation-hardened RAD-PAK® MCM packaging technology, the 79C0408 is the first radiation-hardened 4 Megabit MCM EEPROM for space applications. The 79C0408 uses four 1 Megabit high-speed CMOS die to yield a 4 Megabit product.

The 79C0408 is capable of in-system 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 programming operations. In the 79C0408, hardware data protection is provided with the RES pin, in addition to noise protection on the WE signal and write inhibit on power on and off. Software data protection is implemented using the JEDEC optional standard algorithm.


About RAD-PAK® Technology

Maxwell Technologies' patented RAD-PAK® packaging technology incorporates radiation shielding in the microcircuit package. 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, RAD-PAK provides greater than 100 krad (Si) radiation dose tolerance. This product is available with screening up to Class S.