In SX Microcontrollers, SX/B Compiler and SX-Key Tool, green_phantom wrote:

Leon:

In case Parallax runs out of SX chips, from this moment onward, I have planned to purchase a universal Microchip PIC integrated circuit programmer and a Wellon VP-series universal programmer as well as a first look at the Propeller chip.  The pinouts of the Intel 87C51 and Propeller look similar but they are not the same.  In the case of the SX28AC DIP, which is what I am using for my haldheld hobby/gaming/robotics remote microcomputer, the 6015, I was looking for identical equivalent Microchip PICs with flash memory that work like the SX28AC, with internal oscillator and the same pin layout though slower than the SX.  The PIC 16C57 has the same pin layout as the SX28AC DP but it doesn't have an internal oscillator and its RAM size is smaller.  Hopefully Microchip can develop an alternative to the SX28AC DP with the same pin layout, internal oscillator, flash memory and the same RAM and ROM sizes as the SX - only difference would be that it will not be as fast.

Microchip already developed a 28-pin DIP and SOIC, SSOP and TQFP companions with a staggering 128KB of ROM, nearly 4K of RAM and evan an internal 1K EEPROM packed into one chip!  The PIC 18F2620 is one of them.  Want to build a benchtop or handheld computer with a motherboard comprised of one single PIC microcontroller?  Microchip brought out the PIC 18F8722 with 128K of ROM, approximate of 4K of RAM, 1K of EEPROM and a whopping 70 I/O pins!

I hope you all looked at my SX topic on "SX28-Based Hand Held."

Green_Phanotm

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