CD4047 ek monostable aur astable multivibrator IC hai jo timing aur pulse generation ke liye use hota hai. Ye IC digital aur analog circuits dono mein bohat ahmiyat rakhta hai. CD4047 ko dual-mode multivibrator bhi kaha jata hai kyunki isay monostable (one-shot) aur astable (free-running oscillator) modes mein operate karaya ja sakta hai. Monostable mode: Clock trigger signal milne par ye ek hi fixed duration ka output pulse generate karta hai. Is duration ka ta’alluq external resistor (R) aur capacitor (C) ke values se hota hai. Astable mode: Is mode mein ye IC continuously clock pulses banata hai jiska frequency aur duty cycle bhi R aur C ke zariye control kiya ja sakta hai. CD4047 ki khas baat ye hai ke ye very stable frequency output deta hai aur iska duty cycle near 50% hota hai, jo ise oscillators, frequency generators, timers, LED flasher circuits, tone generators aur DC-AC inverters ke liye ideal banata hai. Ye IC Q aur Q̅ (complementary outputs) provide karta hai jo ek dosray ke opposite signals hote hain, is wajah se isay H-bridge aur inverter circuits mein bhi use kiya jata hai. Supply voltage 3V se 15V tak hoti hai aur ye low power CMOS technology par based hai.