TC74HC4049,4050AP/AF/AFT TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HC4049AP, TC74HC4049AF, TC74HC4049AFT TC74HC4050AP, TC74HC4050AF, TC74HC4050AFT TC74HC4049AP/AF/AFT Hex Buffer/Converter (inverting) TC74HC4049AP, TC74HC4050AP TC74HC4050AP/AF/AFT Hex Buffer/Converter The TC74HC4049A and TC74HC4050A are high speed CMOS 2 HEX BUFFERs fabricated with silicon gate C MOS technology. They achieve the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. The TC74HC4049A is an inverting buffer, while the TC74HC4050A is a non-inverting buffer. The internal circuits are TC74HC4049AF, TC74HC4050AF composed of 3-stages (HC4049A) or 2-stages (HC4050A) of invertaers, which provided high noise immunity and stable output. Input protection circuits are different from those of other high speed CMOS ICs. They eliminate the diodes on the V side CC thus providing of logic-level conversion from high-level volages up to 15 V to low-level voltages. They are useful for battery back up circuits, because input voltage can be applied on ICs which are not biased by V . CC TC74HC4049AFT, TC74HC4050AFT Features High speed: t = 9 ns (typ.) at V = 5 V pd CC Low power dissipation: I = 1 A (max) at Ta = 25C CC High noise immunity: V = V = 28% V (min) NIH NIL CC Output Drive Capability: 15 LSTTL loads Symmetrical output impedance: I = I = 6 mA (min) OH OL Balanced propagation delays: t t pLH pHL Weight Wide operating voltage range: V = 2 V to 6 V CC (opr) DIP16-P-300-2.54A : 1.00 g (typ.) Pin and function compatible with 4049B/4050B SOP16-P-300-1.27A : 0.18 g (typ.) TSSOP16-P-0044-0.65A : 0.06 g (typ.) Start of commercial production 1986-05 1 2014-03-01 TC74HC4049,4050AP/AF/AFT Pin Assignment TC74HC4049A TC74HC4050A V 1 16 NC V 1 16 NC CC CC 1Y 2 15 6 Y 1Y 2 15 6Y 1A 3 14 6A 1A 3 14 6A 4 13 NC 2Y 4 13 NC 2Y 2A 5 12 5 Y 2A 5 12 5Y 3Y 6 11 5A 3Y 6 11 5A 3A 7 10 4 Y 3A 7 10 4Y GND 8 9 4A GND 8 9 4A (top view) (top view) NC: No connection IEC Logic Symbol TC74HC4049A TC74HC4050A (3) (2) (3) (2) 1 1 1A 1Y 1A 1Y (5) (4) (5) (4) 2A 2Y 2A 2Y (7) (6) (7) (6) 3A 3Y 3A 3Y (9) (10) (9) (10) 4A 4Y 4A 4Y (11) (12) (11) (12) 5A 5Y 5A 5Y (14) (15) (14) (15) 6A 6Y 6A 6Y Truth Table A Y (4049A) Y (4050A) L H L H L H Input and Output Equivalent Circuit TC74HC4049A TC74HC4050A V V CC CC A Y A Y GND GND 2 2014-03-01