Thankyou very much ALERTLINKS.
Actually i needed ATMEGA64 to make a project of an osciloscope here.
JYE Tech - DIY Oscilloscopes, DIY Kits for hobbyists
Now from datasheet it is clear that the atmega64 is interchangeable with ATMEGA128.However Migration application note AVR090 states following differences,
The Boot Loader area is also changed. The following must be considered:
• The No-Read-While-Write section starts at word address 0xF000 instead of
0x7000.
• The available Boot Loader sizes are still 512, 1024, 2048, and 4096 words.
The start of an ADC conversion in Atmega64 can auto trigger on interrupt sources.
This ADC auto triggering is not implemented in Atmega128.
I can write simple codes not so complex and the kit manufacturer has released hex code and every thing else but not source code.Student version of source code is there but is limited.
I am not sure whether i can go with the replacement or not.
The datasheet of TLC5510 says it is interchangeable with Sony CXD1175.
Yet i am interested in buying 2 of ATMEGA32 plcc version along with 1 of TLC5510 or CXD1175.So ALTERLINKS can you tell me where from those in your list are available or you are selling them?