Part # TC74HC42AP TC74HC42AF TC74HC42AFN datasheet

Part Manufacturer: Toshiba


Part Description: BCD to Decimal Decoder

Part Details:

TC74HC42AP/AF/AFN TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HC42AP,TC74HC42AF,TC74HC42AFN BCD to Decimal Decoder Note: xxxFN (JEDEC SOP) is not available in Japan. The TC74HC42A is a high speed CMOS BCD-to-DECIMAL DECODER fabricated with silicon gate C2MOS technology. TC74HC42AP It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. A BCD code applied to the four inputs (A-D) sets a low level at one of ten decoded outputs. A illegal BCD code such as eleven thru fifteen sets all outputs high. This device can be used as 3-to-8 LINE DECODER when input D is held low. This device is useful for code conversion, address decoding, memory selection, multiplexing, or readout decoding. All inputs are equipped with protection circuits against static TC74HC42AF discharge or transient excess voltage. Features · High speed: tpd = 13 ns (typ.) at VCC = 5 V · Low power dissipation: ICC = 4 A (max) at Ta = 25°C · High noise immunity: VNIH = VNIL = 28% VCC (min) · Output drive capability: 10 LSTTL loads · Symmetrical output impedance: |IOH| = IOL = 4 mA (min) · Balanced propagation delays: tpLH - tpHL · Wide operating voltage range: VCC (opr) = 2~6 V · Pin and function compatible with 74LS42 Pin Assignment TC74HC42AFN Weight DIP16-P-300-2.54A : 1.00 g (typ.) SOP16-P-300-1.27A : 0.18 g (typ.) SOP16-P-300-1.27 : 0.18 g (typ.) SOL16-P-150-1.27 : 0.13 g (typ.) 1 2006-06-01 TC74HC42AP/AF/AFN IEC Logic Symbol Truth Table Code BCD Inputs Decimal Outputs No. D C B A Y0 1 Y Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 0 L L L L L H H H H H H H H H 1 L L L H H L H H H H H H H H

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TC74HC42AP TC74HC42AF TC74HC42AFN.pdf Datasheet