SN74LS688 - 8-Bit Identity/Magnitude Comparators (P=Q) with Enable
Updated : 2020-01-09 14:43:26Description
These magnitude comparators perform 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 'LS682, 'LS684, 'LS686, and 'LS688 have totem-pole outputs, while the 'LS685 and 'LS687 have open-collector outputs. The 'LS682 features 20-k
pullup termination resistors on the Q inputs for analog or switch data.
Features
- Compares Two-8-Bit Words
- Choice of Totem-Pole or Open-Collector Outputs
- Hysteresis at P and Q Inputs
- 'LS682 has 20-k Pullup Resistors on the Q Inputs
- SN74LS686 and 'LS687 … JT and NT 24-Pin, 300-Mil Packages
Parametrics
| Status | ACTIVE |
| SubFamily | Digital comparator |
| Technology Family | LS |
| VCC | 5.25 |
| Bits | 8 |
| Voltage | 5 |
| F @ nom voltage | 35 |
| ICC @ nom voltage | 68 |
| tpd @ Nom Voltage | 23 |
| Rating | Catalog |
| Operating temperature range | 0 to 70 |
| Package Group | PDIP|20 |
| Package size: mm2:W x L (PKG) | See datasheet (PDIP) |
| Approx. price | 0.94 | 1ku |
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