1. MCU: ATmega128A/ATmega128/ATmega128L；
2. AD converter reference voltage is filtered by inductance and capacitance network.
3. External crystal is selectable by jumpers;
4. DIP connectors connected to all I/O ports;
5. On-board ISP and JTAG connectors;
6. Stable reset circuit;
7. PA1 and PA0 drive two LEDs to supply simple test;
8. The power supply and I/O pins is 5V;
9. PCB size: 52.3MMx80MM
http://www.siliconray.com/catalogsearch/result/?q=ATmega128A
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