AVR USB ISP STK500 is a high speed USB powered STK500 compatible In-System USB programmer for AVR family of microcontrollers. It can be used with AVR Studio on Win XP platforms. For Windows7 it can be used in HID mode with Avrdude command prompt as programming interface. Its adjustable clock speed allows programming of microcontrollers with lower clock speeds. The programmer takes power directly from PC’s USB port which eliminates need of external power supply. The programmer can also power the target board from PCs USB port with limited supply current of up to 100mA.
Note:The USB port of PC provides 5V DC. For 3.3V microcontrollers, please use appropriate voltage regulators