This is a BBD (Bucket Brigade Device) IC, or Analog Delay Line IC as it is described in the datasheet. It is used in the GuitarPCB Mini-Me project, and can be used in other modulation circuits as well.
These are guaranteed authentic. Right now, the price to obtain these was high. Once the global IC shortage issue is resolved, I expect we'll be able to offer these for a lower price. We have limited stock, so we ask that you buy a maximum of 5 pieces. We are offering these on ebay as well, but the shipping is cheaper here, and the price is a bit lower since we don't have to pay ebay's sales fees.
This item ships via USPS First Class Mail with tracking unless ordered with a pedal kit.