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74HC series ICs are High-speed logic gates with very low power consumption that utilize advanced silicon-gate CMOS technology and 74HC373 is one of them. 74HC373 ICs contain eight D-type latches with 3-Output states i.e. High, Low, and High Impedance. 74HC373 provides Latch-Enable (LE) input pin and when it’s high, the Q outputs follow the data (D) inputs. When LE is low, the device does not change the previous logic. ts. A buffered output-enable (OE)’ input can be used to place the eight outputs in either a normal logic state (high or low) or the high-impedance state. OE’ does not affect the internal stored logic.
The 74HC374 ICs have a wide operating range of VCC from 2 V to 6 V. Maximum current consumption is 80 uA through Icc and 1 uA per input pin. And the propagation delay is 13 ns. They can drive 15 LS-TTL loads at a time. This means that the output pin of a D-type flip-flop can drive 15 TTL based Low-Power Schottky( LS ) input pins. They can provide 6 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 35 mA per output pin and 70 mA for overall pins in between 0 V to VCC.
Specification:
| Brand Name | Texas Instruments |
| Operating Voltage Range | 2.0 to 6.0 V |
| Package | DIP−20 |
| Input Current | 1 uA |
| Powering Current | 80 uA |
| Output Current at VCC | 6 mA |
| Fan-Out | 10 LS-TTL Load |
| Propagation Delay | 13 ns |
| Temperature Range | -65 °C to +150 °C |
Pin Configuration:
| Data Input (D[0:7]) | 3, 4, 7, 8, 13, 14, 17, 18 |
| Output Pins (Q[0:7]) | 2, 5, 6, 9, 12, 15, 16, 19 |
| Latch Enable (LE) | 11 |
| Output Enable | 1 |
| Power Supply (VCC) | 20 |
| Ground (GND) | 10 |
