Rad hard Components For Space
Space Scene
Components
48SD6404 SDRAM, 256 Mb, (16-Meg X 4-Bit X 4 banks), 3.3V
SDRAM ImageSDRAM
Package(s) :
72-Pin RAD-PAK® Flat Package
Memory Size:
16-Meg X 4-Bit X 4-Banks
Voltage:
3.3V
Clock Frequency:
100 MHz
Radiation Performance:
RAD-PAK® radiation-hardened against natural space radiation
> 100 krad (Si), depending upon space mission
SELTH > 85 MeV/mg/cm2 @ 25°C
Specifications At A Glance
JEDEC Standard 3.3V Power Supply
Operating Current: 115 mA
Operating tremperature: -55 to +125 °C
Auto Refresh
2 Burst Sequence variations
  • Sequential (BL =1/2/4/8)
  • Interleave (BL = 1/2/4/8)
Single pulsed RAS
LVTTL Compatible Inputs and Outputs
Power Down and Clock Suspend Modes
Programmable CAS latency: 2/3
 

Maxwell Technologies’ Synchronous Dynamic Random Access Memory (SDRAM) is ideally suited for space applications requiring high performance computing and high density memory storage. As microprocessors increase in speed and demand for higher density memory escalates, SDRAM has proven to be the ultimate solution by providing bit-counts up to 256 Mega Bits and speeds up to 100 Megahertz.

SDRAMs represent a significant advantage in memory technology over traditional DRAMs including the ability to burst data synchronously at high rates with automatic column-address generation, the ability to interleave between banks masking precharge time.


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.