- This is a trivial Tait style programmer that does low voltage programming (LVP).
- With a single IC and a single resistor, this is one of the most simple programmers that you'll find.
- It also have have a schematic for a ICSP version of TLVP that can be used to program a 16F62X/16F81X/16F88 part when MCLR is programmed as an input and the oscillator is INTRC.
Details can be found HERE