RE: external SRAM interface with MPC555

Sushmitha,
 
The most difficult thing will surely be to find a chip with the suitable temperature range...
 
 
 

Jean-Christophe MATHAE

CIRTEM
http://www.cirtem.com <http://www.cirtem.com/> 

bâtiment Pointe Bleue
20, voie l'Occitane
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31319 LABEGE cedex
France

Tél : (33) 562.24.26.82

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________________________________

De : [email protected] [mailto:[email protected]] De la part de Sushmitha
Envoyé : mardi 9 octobre 2007 08:15
À : [email protected]
Objet : [MPC500] external SRAM interface with MPC555



Hello,

SRAM is required to be used with an MPC555, in an Avionics 
application (-55C to 125C ambient temperature).

Program code will be downloaded from Flash memory(internal flash of 
MPC555) to the SRAM. SRAM must be fast enough for the MPC555 to run 
code at the full 40MHz speed?

The minimum total amount of SRAM that is required is 256Kbytes, up 
to 2Mbytes if possible. it can be x32 configuration or x16 
configuration, 

The usage of internal flash of the microcontroller and external 
SRAM interfaced to microcontroller MPC555 can be done?

Is it possible to interface SDRAM to MPC555.If yes how the control 
signals will be interfaced?

Thanks,
Sushmitha



 


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