Mercury
Member level 3
Hi guys,
I will be doing my first design with an SDR SDRAM. I'll be using the LPC1788 (in BGA), which has an SDRAM controller built-in, case and a 32Bit 3.3V SDRAM. The maximum speed will be 120MHz. My first question is regarding the layer stackup; would this be correct?
- Top Layer (signal)
- GND
- 3.3V power plane
- Bottom layer (signal)
Also, where should I try to route the most of the signals, on the top or on the bottom signal layer? Any advice on signal routing (and termination, if needed) will also be much appreciated.
Thanks and best regards,
George
I will be doing my first design with an SDR SDRAM. I'll be using the LPC1788 (in BGA), which has an SDRAM controller built-in, case and a 32Bit 3.3V SDRAM. The maximum speed will be 120MHz. My first question is regarding the layer stackup; would this be correct?
- Top Layer (signal)
- GND
- 3.3V power plane
- Bottom layer (signal)
Also, where should I try to route the most of the signals, on the top or on the bottom signal layer? Any advice on signal routing (and termination, if needed) will also be much appreciated.
Thanks and best regards,
George