Product category:
Memory Devices and Modules
News Release from: Atmel Corporation | Subject: AT68166
Edited by the Electronicstalk Editorial
Team on 11 January 2007
Multichip module saves room for space
memory
The AT68166 is a 16Mbit SRAM packaged in a hermetic multichip module (MCM) for space applications.
New from Atmel Corp, the AT68166 is a 16Mbit SRAM packaged in a hermetic multichip module (MCM) for space applications MCM packaging technology offers the advantages of reducing PCB real estate, the number of individual components and improves overall electronic effectiveness
This article was originally published on Electronicstalk on 18 Nov 2005 at 8.00am (UK)
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This allows a reduction of the PCB area by 50% with a weight savings of 75% compared with four 4Mbit packages.
The AT68166 multichip module incorporates four 4Mbit AT60142 SRAM dice which are produced on Atmel's radiation-hardened 0.25um CMOS process.
The AT68166 is a very low-power CMOS asynchronous SRAM.
It can be organised as either one bank of 512K x 32, two banks of 512K x 16 or four banks of 512K x 8bit.
It combines rad-hard capabilities - a latch-up threshold of 80MeVcm2/mg and a total dose of 300krad - with a fast access time.
The AT68166 operates at 3.3V and is available in two versions: the AT68166FT with 5V-tolerant inputs and the AT68166F for 3V operation.
The access times are 25 and 20ns, respectively, over the full military temperature range.
The AT68166 MCM offers low power consumption: 540mW per byte at 25ns and 620mW per byte at 20ns.
The AT68166F/FT are available in a 68-lead flat pack; they weigh 8.6g thus meeting the rigorous size and weight requirements of the space industry.
Also, thanks to the small size of the 4Mbit SRAM, Atmel has been able to accommodate the assembly of the four dice on one side of the package which facilitates the power dissipation.
The AT68166 is a cost-attractive alternative to existing 16Mbit SRAM offerings.
The compatibility with other products allows designers of space applications to easily migrate their designs to the Atmel AT68166 memories.
Samples and production parts are available for both variants.
The AT68166 is QML Q and V qualified and supported by the SMD 5962-06229.
The AT68166 is priced at US $1710 each, in QML Q, for 100 pieces.
In early 2007, the access times will be improved from 20-25 to 18-20ns.
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