The CY8C28xxx series has a maximum of 16kB Flash only. In the CY8C28xxx series, we have a wider analog mux for analog column input which is not available in other PSoC1 devices. This wider analog mux enables a column to connect to any Port 0 pin or an analog mux bus.
I suggest that you move to devices on our PSoC4 family, which is newer and is ARM Cortex M0 based. We will be continually updating this family.