TC74VHC574FT(EL,K) Toshiba

TC74VHC574F/FT/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74VHC574F,TC74VHC574FT,TC74VHC574FK Octal D-Type Flip Flop with 3-State Output The TC74VHC574 is advanced high speed CMOS OCTAL TC74VHC574F FLIP-FLOP with 3-STATE OUTPUT fabricated with silicon gate 2 C MOS technology. It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. This 8-bit D-type flip-flop is controlled by a clock input (CK) and an output enable input ( OE ). When the OE input is high, the eight outputs are in a high impedance state. An input protection circuit ensures that 0 to 5.5 V can be TC74VHC574FT 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. Features High speed: f = 180 MHz (typ.) at V = 5 V max CC Low power dissipation: I = 4 A (max) at Ta = 25C CC TC74VHC574FK 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 = 1.2 V (max) OLP Pin and function compatible with 74ALS574 Weight SOP20-P-300-1.27A : 0.22 g (typ.) TSSOP20-P-0044-0.65A : 0.08 g (typ.) VSSOP20-P-0030-0.50 : 0.03 g (typ.) 1 2007-10-01 TC74VHC574F/FT/FK Pin Assignment IEC Logic Symbol (1) OE EN 1 20 V OE CC (11) CK C1 D0 2 19 Q0 (2) (19) D0 1D Q0 D1 18 Q1 3 (3) (18) D1 Q1 (4) (17) D2 4 17 Q2 D2 Q2 (5) (16) D3 Q3 D3 5 16 Q3 (6) (15) D4 Q4 (7) (14) D5 Q5 D4 6 15 Q4 (8) (13) D6 Q6 (9) (12) D5 7 14 Q5 D7 Q7 D6 8 13 Q6 D7 9 12 Q7 GND 10 11 CK (top view) Truth Table Inputs Output OE CK D H X X Z L X Q n L L L L H H X: Dont care Z: High impedance Q : No change n System Diagram D0 D1 D2 D3 D4 D5 D6 D7 2 3 456789 D D D D DD D D D CK Q CK Q CK Q CK Q CK Q CK Q CK Q CK Q 11 CK 1 OE 19 18 17 16 15 14 13 12 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 2 2007-10-01