BU4028B Просмотр технического описания (PDF) - ROHM Semiconductor
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BU4028B Datasheet PDF : 6 Pages
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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.
•Block diagram
Q4 1
Q2 2
Q0 3
Q7 4
Q9 5
Q5 6
Q6 7
VSS 8
Q4
Q2
Q3
Q0
Q1
Q7
B
Q9
C
Q5
D
Q6
A
Q8
16 VDD
15 Q3
14 Q1
13 B
12 C
IN
11 D
10 A
9 Q8
4) High fan-out.
5) Direct drive of 2 L-TTL inputs and 1LS-TTL input.
•Logic circuit diagram
Q0
Q1
A
Q2
Q3
B
Q4
Q5
C
Q6
Q7
D
Q8
Q9
1
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