The upgrade to the MSC313E seems to be the SSC325. They are currently ~$1.80 on the market which is better than the $3.40 best price I have for the MSC313E. The SSC325 has 88 pins though so it might not fit.
The upgrade to the MSC313E seems to be the SSC325. They are currently ~$1.80 on the market which is better than the $3.40 best price I have for the MSC313E. The SSC325 has 88 pins though so it might not fit.