TC74AC393F(F) Toshiba

TC74AC393P/F/FT TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74AC393P, TC74AC393F, TC74AC393FT Dual Binary Counter TC74AC393P The TC74AC393 is an advanced high speed CMOS 4-BIT BINARY COUNTER fabricated with silicon gate and 2 double-layer metal wiring C MOS technology. It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. It contains two independent counter circuits in one package, so that counting or frequency division of eight binary bits can be achieved with one IC. This device changes state on the negative going transition of TC74AC393F the CLOCK pulse. The counter can be reset to 0 (QA to QD = L) by a high at the CLEAR input regardless of other inputs. All inputs are equipped with protection circuits against static discharge or transient excess voltage. Features High speed: f = 180 MHz (typ.) at V = 5 V max CC Low power dissipation: I = 8 A (max) at Ta = 25C CC TC74AC393FT High noise immunity: V = V = 28% V (min) NIH NIL CC Symmetrical output impedance: I = I = 24 mA (min) OH OL Capability of driving 50 transmission lines. Balanced propagation delays: t t pLH pHL Wide operating voltage range: V = 2 to 5.5 V CC (opr) Pin and function compatible with 74F393 Weight DIP14-P-300-2.54 : 0.96 g (typ.) SOP14-P-300-1.27A : 0.18 g (typ.) TSSOP14-P-0044-0.65A : 0.06 g (typ.) Start of commercial production 1988-10 1 2014-03-01 TC74AC393P/F/FT Pin Assignment IEC Logic Symbol (3) CTRDIV 16 0 1QA (2) 1CK 1 14 V 1CLR CT = 0 CC (4) 1QB CT (5) 1QC 1CLR 2 13 2CK (1) 1CK + (6) 3 1QD (11) 1QA 12 2CLR 3 2QA (12) 2CLR (10) 2QB 1QB 4 11 2QA (9) 2QC (13) 2CK (8) 2QD 1QC 5 10 2QB 1QD 6 9 2QC GND 7 8 2QD (top view) Truth Table Inputs Outputs CK CLR QA QB QC QD X H L L L L L Count Up L No Change X: Dont care Timing Chart CK CLR QA QB QC QD 2 2014-03-01