These PIC chips have 2K FLASH, 134 bytes RAM, and 32 I/O bits. Price is $2.50 only, new ICs, never used + already mounted on TQFP44 adapter. These adapters have 4x 2x6 2.54mm rows, and are very compact. What's the advantage compared with PDIP ICs? 1. Smaller + more flat. 2. Wires can be soldered to the TQFP adapter easily. 3. Some small components can be added, like for instance a crystal or LED. PIC 16F59 is similar to 16F54, but has much more RAM + 2K FLASH memory. It could be used for simple LCD circuits, for LED blink circuits, timers, sound generator, remote control, and a lot more. It is possible to program 16F59 with PICKIT3 (or PICKIT2), and to use XC8 + MPLABX. Or assembler. Compared to other PICs, there are very few things to configure here, so it's very easy actually. There is no A/D, indeed no pheripherals at all. I don't know how many of them I have around here might be anything between 15 and 30 pcs. Shipping would be $3/Worldwide, for UK you can get a small discount (1pcs or more, or including additional components = same shipping rate). If you like, I can also include 8Mhz or 12.28 Mhz crystal, or 5 MHz resonator (free).