Integrated Circuits |
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7485 |
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4-bit magnitude comparator |
PDF datasheet |
B3 | 1 • | 16 | Vcc |
IA <B | 2 | 15 | A3 |
IA=B | 3 | 14 | B2 |
IA >B | 4 | 13 | A2 |
QA >B | 5 | 12 | A1 |
QA=B | 6 | 11 | B1 |
QA <B | 7 | 10 | A0 |
GND | 8 | 9 | B0 |
Pin | Symbol | Description |
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1 | B3 | word B input |
2 | IA <B | A <B expansion input |
3 | IA=B | A = B expansion input |
4 | IA >B | A >B expansion input |
5 | QA >B | A >B output |
6 | QA=B | A = B output |
7 | QA <B | A <B output |
8 | GND | ground |
9 | B0 | word B input |
10 | A0 | word A input |
11 | B1 | word B input |
12 | A1 | word A input |
13 | A2 | word A input |
14 | B2 | word B input |
15 | A3 | word A input |
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, An , Bn to QA >B , QA <B |
20 (74HC) 22 (74HCT) |
ns |
Propagation delay, An , Bn to QA=B |
18 (74HC) 20 (74HCT) |
ns |
Propagation delay, IA <B , IA=B , IA >B to QA <B , QA >B |
15 (74HC) 15 (74HCT) |
ns |
Propagation delay, IA=B to QA=B |
11 (74HC) 15 (74HCT) |
ns |
Notes |
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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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