Friday, 9 April 2010

MC54-74HC4052 (Serial Data Shift Register)

MCU တစ္ခုမွာ Serial port မေလာက္ေတာ့တဲ့ အေျခအေနေတြ ျဖစ္ခဲ့ရင္ သံုးတဲ့ အမ်ိဳးအစားပါ။ Motorola က ထုတ္ပါတယ္။ ဒီ က Serial IO ၄ ခုကို တစ္လွည့္စီ Channel-select Input ေတြကေနထိန္းၿပီး တစ္ဖက္ ရဲ့ Serial I/ O နဲ႔ ခ်ိန္ကိုက္ အလုပ္လုပ္ပါတယ္။ သေဘာက ရဲ့ Serial I/ O တစ္ခုတည္းကို အထြက္ အ၀င္လုပ္ၿပီး ဒီဘက္ကေန Serial I/ O ကို 4 Channel အထိ ပြားယူလိုက္တဲ့သေဘာပါ။ Serial Port ကို Multiplex လုပ္လိုက္တဲ့ သေဘာပါပဲ။ ေအာက္မွာ IC pin description န႔ဲ Function table ကို ျပထားပါတယ္။


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