TC74AC390FN

www.DataSheet4U.com TC74AC390P/F/FN TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74AC390P,TC74AC390F,TC74AC390FN Dual Decade Counter Note: The TC74AC390 is an advanced high speed CMOS DUAL DECADE COUNTER fabricated with silicon gate and double-layer metal wiring C2MOS technology. It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. It consists of two independent 4-bit counters, each composed of a divide-by-two and a divide-by-five counter. The divide-by-two counter is incremented on the negative going transition of clock A ( CKA ). The divided-by-five counter is incremented on the negative going transition of clock B ( CKB ). The counter can be cascaded to form decade, bi-quinary, or various combinations up to a divide-by-100 counter. When the CLEAR input is set high, the Q outputs are set to low independent of the clock inputs. All inputs are equipped with protection circuits against static discharge or transient excess voltage. xxxFN (JEDEC SOP) is not available in Japan. TC74AC390P TC74AC390F Features High speed: fmax = 160 MHz (typ.) at VCC = 5 V Low power dissipation: ICC = 8 µA (max) at Ta = 25°C High noise immunity: VNIH = VNIL = 28% VCC (min) DataShee DataSheet4U.com Symmetrical output impedance: |IOH| = IOL = 24 mA (min) Capability of driving 50 Ω transmission lines. ∼ tpHL Balanced propagation delays: tpLH − Wide operating voltage range: VCC (opr) = 2 to 5....