TC74HC153,253AP/AF TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HC153AP,TC74HC153AF TC74HC253AP,TC74HC253AF TC74HC153AP/AF Dula 4-Channe Multiplexer TC74HC253AP/AF Dual 4-Channel Multiplexer with 3-State Output TC74HC153AP, TC74HC253AP The TC74HC153A and TC74HC253A are high speed CMOS DUAL 4-CHANNEL MULTIPLEXERs fabricated with silicon 2 gate C MOS technology. They achieve the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. The TC74HC153A has standard outputs, while the TC74HC253A has 3-state outputs. TC74HC153AF, TC74HC253AF Input data (1C0~1C2, 2C0~2C3) are selected by the two address inputs, A and B. Separate strobe inputs (1G , 2G ) are provided for each of the two four-line sections. They can be used to inhibit the data outputs. The output of the HC153A is set low, and the HC253A output is set to the high impedance state, when the strobe inputs are low. All inputs are equipped with protection circuits against static discharge or transient excess voltage. Features Weight DIP16-P-300-2.54A : 1.00 g (typ.) High speed: t = 12 ns (typ.) at V = 5 V pd CC SOP16-P-300-1.27A : 0.18 g (typ.) Low power dissipation: I = 4 A (max) at Ta = 25C CC High noise immunity: V = V = 28% V (min) NIH NIL CC Output drive capability: 10 LSTTL loads Symmetrical output impedance: I = I = 4 mA (min) OH OL Balanced propagation delays: t t pLH pHL Wide operating voltage range: V (opr) = 2 to 6 V CC Pin and function compatible with 74LS153, 74LS253 Pin Assignment 1 2012-02-29 TC74HC153,253AP/AF IEC Logic Symbol TC74HC153A TC74HC253A Truth Table Select Inputs Data Inputs Strobe Outputs Y B A C0 C1 C2 C3 G HC153A HC253A X X X X X X H L Z L L L X X X L L L L L H X X X L H H L H X L X X L L L L H X H X X L H H H L X X L X L L L H L X X H X L H H H H X X X L L L L H H X X X H L H H X: Dont care Z: High impedance 2 2012-02-29