TC74VHC393FT(SPL) Toshiba

TC74VHC393F/FT/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74VHC393F, TC74VHC393FT, TC74VHC393FK Dual Binary Counter TC74VHC393F The TC74VHC393 is an advanced high speed CMOS 4-BIT 2 BINARY COUNTER fabricated with silicon gate 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. TC74VHC393FT This device changes state on the negative going transition of the CLOCK pulse. The counter can be reset to 0 (Q to Q = A D L) by a high at the CLEAR input regardless of other inputs. An input protection circuit ensures that 0 to 5.5 V can be applied to the input pins without regard to the supply voltage. This device can be used to interface 5 V to 3 V systems and two supply systems such as battery back up. This circuit prevents device destruction due to mismatched supply and input voltages. TC74VHC393FK Features High speed: f = 170 MHz (typ.) at V = 5 V max CC Low power dissipation: I = 4 A (max) at Ta = 25C CC High noise immunity: V = V = 28% V (min) NIH NIL CC Power down protection is provided on all inputs. Balanced propagation delays: t t pLH pHL Wide operating voltage range: V = 2 to 5.5 V CC (opr) Low noise: V = 0.8 V (max) OLP Weight Pin and function compatible with 74ALS393 SOP14-P-300-1.27A : 0.18 g (typ.) TSSOP14-P-0044-0.65A : 0.06 g (typ.) VSSOP14-P-0030-0.50 : 0.02 g (typ.) Start of commercial production 1991-11 1 2014-03-01 TC74VHC393F/FT/FK 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 System Diagram D D D D 1/13 CK Q CK Q CK Q CK Q CK R R R R 2/12 CLR 3/11 4/10 5/9 6/8 QA QB QC QD 2 2014-03-01