AVT2550 / P B

A trivially simple ISP programmer. The device is used to enter the program into the microprocessor memory. Thanks to the ISP connector, this is possible without the need to pull the 'cube' out of the plate.
The programmer is a modified version of the Kanda device STK200, very popular among electronics. It contains only one integrated circuit - 74HCT244. The small plate has a shape that allows it to be mounted in the DB25 connector holder. The solution adopted allows the programmer to be powered from the microcontroller board (via the ISP connector) as well as from the external power supply.

The device is especially recommended for all electronics who want to explore the secrets of programming in BASCOM AVR

Selected parameters:

• the possibility of programming all processors from the AVR family and some '51
• built-in 74HCT244 buffer
• control from the printer's connector
• small dimensions, housing with DB25 connector
• possibility of powering from a programmed system or an external power supply
• power supply - 5 V (as above)
• in the set a printed circuit board, a set of elements and documentation
  
  Detailed description in
  EdW 10/01