The 74LS682 is a part of the 74XXYY IC series. The 74LS682 magnitude comparator performs comparisons of two eight-bit binary or BCD words. All types provide P = Q’ outputs and all except ‘LS688 provide P > Q’ outputs as well. The 74LS682 IC has totem pole output & also features 20KOhm pull-up termination resistors on the Q inputs for analog & switch data. The IC 74LS682 is smaller in size and it has a much faster speed which makes it reliable in every kind of device.
What is an 8-Bit Magnitude Comparator?
An 8-bit magnitude comparator compares two binary words each of eight bits. It consists of sixteen inputs each for two eight bit words and two outputs to generate equal to and greater than between two binary words.
74LS682 Pinout
74LS682 Pin Configuration
| Pin No | Pin Name | Description |
|---|---|---|
| 1 | P > Q’ | P > Q’ comparator output |
| 2 | P0 | Comparator Input Pin P0 |
| 3 | Q0 | Comparator Input Pin Q0 |
| 4 | P1 | Comparator Input Pin P1 |
| 5 | Q1 | Comparator Input Pin Q1 |
| 6 | P2 | Comparator Input Pin P2 |
| 7 | Q2 | Comparator Input Pin Q2 |
| 8 | P3 | Comparator Input Pin P3 |
| 9 | Q3 | Comparator Input Pin Q3 |
| 10 | GND | Ground Pin |
| 11 | P4 | Comparator Input Pin P4 |
| 12 | Q4 | Comparator Input Pin Q4 |
| 13 | P5 | Comparator Input Pin P5 |
| 14 | Q5 | Comparator Input Pin Q5 |
| 15 | P6 | Comparator Input Pin P6 |
| 16 | Q6 | Comparator Input Pin Q6 |
| 17 | P7 | Comparator Input Pin P7 |
| 18 | Q7 | Comparator Input Pin Q7 |
| 19 | (P=Q)’ | (P=Q)’ comparator output |
| 20 | Vcc | Chip Supply Voltage |
74LS682 Features & Specifications
- Channels (#): 8
- Technology Family: LS
- VCC (Min) (V): 4.85
- VCC (Max) (V): 5.25
- Input type: Schmitt-Trigger
- Output type: Push-Pull
- Propagation speed: (TPD 10-50ns)
- Compares Two 8-Bit Words in 6.5 ns Typical
- Expandable to Any Word Length
- 20-Pin Package
- TTL Compatible Outputs
- Wide Supply Voltage: -0.5V to 7V
Applications
- Used in devices usch as PCs & notebooks
- Generally used in Central Processing Units (CPUs) & Microcontrollers of various devices such as laptops, personal computers & smartphones, etc.
- An important part of several network testing equipment.
You can download this datasheet for 74LS682 8-Bit Identity/Magnitude Comparator IC from the link given below:
See Also: 74LS14 Schmitt Trigger Hex Inverter IC | 74LS25 Dual 4 – Input NOR Gate IC with Strobe | 74LS139 Dual 1-Of-4 Decoder/Demultiplexer IC – Datasheet
