48SD1616

Features:

* 256 Megabit ( 4-Meg X 16-Bit X 4-Banks)
* RAD-PAK(R) radiation-hardened against natural space radiation
* Total Dose Hardness:
   >100 krad (Si), depending upon space mission
* Excellent Single Event Effects: 
   SEL_TH> 85 MeV/mg/cm²  @25°C
* JEDEC Standard 3.3V Power Supply
* Operating Current: 115 mA
* 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-PAK(R) Flat 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
Thermal resistance	Tjc	1.5	°C/W
Operating Temperature	TOPR	-55 to +125	°C
Storage Temperature	TSTG	-65 to +150	°C

Description

Maxwell Technologies' Synchronous Dynamic Random Access Memory (SDRAM) 48SD1616 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 mem-ory escalates, SDRAM 48SD1616 has proven to be the ultimate solution by providing bit-counts up to 256 Mega Bits and speeds up to 100 Megahertz. SDRAMs 48SD1616 represent a sig-nificant 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 pre-charge time.

Maxwell Technologies' patented RAD-PAK(R) packaging technology about 48SD1616 incorporates radiation shielding in the micro-circuit package. It eliminates the need for box shielding for a lifetime in orbit or space mission. In a typical GEO orbit, RAD-PAK(R) provides greater than 100 krads(Si) radiation dose tolerance. This 48SD1616 is available with screening up to Maxwell Technologies self-defined Class K.