TC74AC541P(F) Toshiba

TC74AC540,541P/F/FT TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74AC540P, TC74AC540F, TC74AC540FT TC74AC541P, TC74AC541F, TC74AC541FT Octal Bus Buffer TC74AC540P, TC74AC541P TC74AC540P/F/FT Inverting, 3-State Outputs TC74AC541P/F/FT Non-Inverting, 3-State Outputs The TC74AC540/TC74AC541 are advanced high speed CMOS OCTAL BUS BUFFERs fabricated with silicon gate and 2 double-layer metal wiring C MOS technology. TC74AC540F, TC74AC541F They achieve the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The TC74AC540 is an inverting type, and the TC74AC541 is a non-inverting type. When either G1 or G2 are high, the terminal outputs are in the high-impedance state. All inputs are equipped with protection circuits against static discharge or transient excess voltage. TC74AC540FT, TC74AC541FT Features High speed: t = 4.0 ns (typ.) at V = 5 V pd CC Low power dissipation: I = 8 A (max) at Ta = 25C CC 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 Weight Wide operating voltage range: V = 2 to 5.5 V CC (opr) DIP20-P-300-2.54A : 1.30 g (typ.) Pin and function compatible with 74F540/541 SOP20-P-300-1.27A : 0.22 g (typ.) TSSOP20-P-0044-0.65A : 0.08 g (typ.) Start of commercial production 1988-10 1 2014-03-01 TC74AC540,541P/F/FT Pin Assignment TC74AC540 TC74AC541 G 1 1 20 V G1 1 20 V CC CC A1 2 19 G2 A1 2 19 G2 A2 18 Y1 A2 18 Y1 3 3 A3 4 17 Y2 A3 4 17 Y2 A4 5 16 Y3 A4 5 16 Y3 A5 6 15 Y4 A5 6 15 Y4 A6 7 14 Y5 A6 7 14 Y5 A7 8 13 Y6 A7 8 13 Y6 A8 9 12 Y7 A8 9 12 Y7 GND 10 11 Y8 GND 10 11 Y8 (top view) (top view) IEC Logic Symbol TC74AC540 TC74AC541 (1) & (1) & G1 EN G1 EN (19) (19) G2 G2 (2) (18) (2) (18) A1 Y1 A1 Y1 (3) (17) (3) (17) A2 Y2 A2 Y2 (4) (16) (4) (16) A3 Y3 A3 Y3 (5) (15) (5) (15) A4 Y4 A4 Y4 (6) (14) (6) (14) A5 Y5 A5 Y5 (7) (13) (7) (13) A6 Y6 A6 Y6 (8) (12) (8) (12) A7 Y7 A7 Y7 (9) (11) (9) (11) A8 Y8 A8 Y8 Truth Table Inputs Outputs G 1 G A2 Y Y n n n H X X Z Z X H X Z Z L L H H L L L L L H X: Dont care Z: High impedance Y : AC541 n Y : AC540 n 2 2014-03-01