KwiChina Izikhonkwane ze-terminal Abaxhasi
IPIN ibhekisa kunxibelelwano phakathi kwesekethe yangaphakathi yesekethe edityanisiweyo (i-chip) kunye nesekethe yedidiyo, kwaye iPIN ibonisa ujongano lwe-chip. Ngokwemisebenzi ye-AT89s52 inokwahlulwa ibe ziindidi ezine: Ukuhanjiswa kwamandla angaphandle, i-crystal ye-crystal engaphandle okanye i-oscillator, owelt, kunye nolawulo, i-strobe kwaye iphinde isebenze.