Standard ICs BCD-to-decimal decoder BU4028B The BU4028B is a decoder which converts BCD signals to decimal signals.
Of the ten outputs Q0 to Q9, those corresponding to the A to D input codes are set to “H”, and the others are all set to “L”.
If inputs A to C are used and input D is used as disabled input, the BU4028B can also be used as a 1-of-8 decoder.
Features • 1) Low power dissipation.
2) Wide range of operating power supply voltages.
3) High input impedance.
4) High fan-out.
5) Direct drive of 2 L-TTL inputs and 1LS-TTL input.
•Block diagram Q4 1 16 VDD 15 Q3 Q4 Q2 Q0 3 Q0 Q7 4 Q7 Q9 Q5 Q5 Q6 6 Q6 Q8 7 10 A 9 Q8 Q1 B C D A 11 D 13 B Q3 14 Q1 Q2 2 •Logic circuit diagram Q0 Q1 A B Q4...

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