Integrated Circuits |
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74139 |
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Dual 2-to-4 line decoder/demultiplexer |
PDF datasheet |
1E | 1 • | 16 | Vcc |
1A0 | 2 | 15 | 2E |
1A1 | 3 | 14 | 2A0 |
1Y 0 | 4 | 13 | 2A1 |
1Y 1 | 5 | 12 | 2Y 0 |
1Y 2 | 6 | 11 | 2Y 1 |
1Y 3 | 7 | 10 | 2Y 2 |
GND | 8 | 9 | 2Y 3 |
Pin | Symbol | Description |
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1 | 1E | enable input (active low) |
2 | 1A0 | address input |
3 | 1A1 | address input |
4 | 1Y 0 | output (active low) |
5 | 1Y 1 | output (active low) |
6 | 1Y 2 | output (active low) |
7 | 1Y 3 | output (active low) |
8 | GND | ground |
9 | 2Y 3 | output (active low) |
10 | 2Y 2 | output (active low) |
11 | 2Y 1 | output (active low) |
12 | 2Y 0 | output (active low) |
13 | 2A1 | address input |
14 | 2A0 | address input |
15 | 2E | enable input (active low) |
16 | Vcc | supply voltage |
Specifications |
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(typical values under recommended operating conditions, unless specified) |
Parameter | Value | Unit |
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Propagation delay, nAn to nY n |
11 (74HC) 13 (74HCT) |
ns |
Propagation delay, nE to nY n |
10 (74HC) 13 (74HCT) |
ns |
Note |
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Data is maintained by an independent source and accuracy is not guaranteed. Check with the manufacturer's datasheet for up-to-date information. |
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