Product Summary
The TC74AC390F is an advanced high speed CMOS dual counter fabricated with silicon gate and double-layer metal wiring C2MOS technology. The TC74AC390F achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The TC74AC390F consists of two independent 4-bit counters,each composed of a divide-by-two and a divide-by-five counter. The TC74AC390F is incremented on the negative going transition of clock A(CKS) . The TC74AC390F is incremented on the negative going translation of clock B(CKB) . The TC74AC390F can be cascaded to form decade, bi-quinary,or various combinations up to a devide-by-100 counter.
Parametrics
TC74AC390F absolute maximum ratings: (1) Supply voltage range Vcc: -0.5~7.0V; (2) DC Input Voltage Vin: -0.5~Vcc+0.5V; (3) DC Output Voltage Vin-0.5~Vcc+0.5 V; (4) Input Diode Current Ijk: ±20mA; (5) Output Diode Current Iok: ±50mA; (6) DC Output Current Iout: ±50mA; (7) DC Vcc/Ground Current Ic: ±200mA; (8) Powe Disspation Po: 500(Dip) * /180(sop) mW Storage Temperature Tstg: -65~150°C.
Features
TC74AC390F feature as below: (1)High speedfMAX=160MHZ(typ) at Vcc=5V; (2) Low Power Dissipations Icc: 8μA (Max.) at Ta=25°C; (3) Symmetrical Output Impedance Loh=Lol: 24mA (Min) Capability of driving 50Ω transmission lines; (4) Balanced Propagation Delays: tpLH=tpHL; (5) Wide Operating Voltage Range Vcc (opr) =2V~5V; (6) Pin and Function Compatible with 74HC390.
Diagrams
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TC74AC390F |
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Negotiable |
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