Description
74HC series ICs are High-speed logic gates with very low power consumption that utilize advanced silicon-gate CMOS technology and 74HC85 is one of them. 74HC85 ICs contain a 4-bit Comparator that can compare two binary, BCD, or other monotonic codes and present the three possible magnitude results at the output i.e. A>B, A=B, and A<B. And it’s weighted inputs are A[0:3] and B[0:3] where A3 and B3 are MSB. 74HC85 comparator can work in both series cascading as well as parallel cascading without using any external gating. And this magnitude comparator can be expended almost to any length. The 74HC85 ICs have a wide operating range of VCC from 2 V to 6 V. Maximum current consumption is 160uA through Icc and 1 uA per input pin. And the propagation delay is 13 ns. They can drive 10 LS-TTL loads at a time. This means that the single output pin of the comparator can drive 10 TTL-based Low-Power Schottky( LS ) input pins. They can provide 4 mA on outputs at 5 V VCC. They allow inputs and outputs up to VCC. Recommended operating VCC is 5 V. Load Current can reach up to 25 mA per output pin and 50 mA for overall pins in between 0 V to VCC.
Application:
- Process controllers
- Servo-motor control
Specification:
| Operating Voltage Range | 2.0 to 6.0 V |
| Package | DIP−16 |
| Input Current | 1 uA |
| Powering Current | 160 uA |
| Output Current at VCC | 4 mA |
| Fan-Out | 10 LS-TTL Load |
| Propagation Delay | 13 ns |
| Temperature Range | -65 °C to +150 °C |
| Country of Origin | China |