72SD3232

Features:

• 1 Gigabit ( 32-Meg X 32-Bit X 4-Banks)
• RAD-PAK® radiation-hardened against natural space radiation
• Total Dose Hardness:>100 krad (Si), depending upon space mission
• Excellent Single Event Effects:SELTH > 85 MeV/mg/cm2 @ 25°C
• JEDEC Standard 3.3V Power Supply
• Clock Frequency: 100 MHz Operation
• Operating tremperature: -55 to +125°C
• Auto Refresh
• Single pulsed RAS
• 2 Burst Sequence variations
Sequential (BL =1/2/4/8)
Interleave (BL = 1/2/4/8)
• Programmable CAS latency: 2/3
• Power Down and Clock Suspend Modes
• LVTTL Compatible Inputs and Outputs
• Package: 72-Pin RAD-Stack Package



Pinout




Specifications

PARAMETER	SYMBOL	MAX	UNIT
Voltage on any pin relative to VSS	VIN VOUT	-0.5 to VCC + 0.5 (< 4.6(max))	V
Supply voltage relative to VSS	VCC	-0.5 to +4.6	V
Short circuit output current	IOUT	50	mA
Power Dissipation	PD	1.0	W
Operating Temperature	TOPR	-55 to +125	°C
Storage Temperature	TSTG	-65 to +150	°C

Description

  Maxwell Technologies' Synchronous Dynamic Random Access Memory (SDRAM) 72SD3232   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 72SD3232   has proven to be the ultimate solution by providing bit-counts up to 1 Gigabits and speeds up to 100 Megahertz. SDRAMs  72SD3232  represent a significant advantage in memory technology over traditional SRAMs including the ability to burst data synchronously at high rates with automatic column-address generation,the ability to interleave between banks masking precharge time, and the ability to randomly change column address during each clock cycle.

  Maxwell Technologies' patented RAD-PAK® packaging technology incorporates radiation shielding in the microcircuit package. The 72SD3232  eliminates the need for box shielding
for a lifetime in orbit or space mission. In a typical GEO orbit, RAD-PAK® provides greater than 100 krads(Si) radiation dose tolerance. The 72SD3232   is available with screening up to Maxwell Technologies self-defined ClassK.