74HC374 8 D-Flip-Flop With 3-Output State IC (74374 IC) DIP-20 Package

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Sold By: HatchnHackSKU: F04-46

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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 74HC374 is one of them. 74HC374 ICs contain eight positive-edge-triggered D-type flip-flops with 3-Output states i.e. High, Low, and High Impedance. Which is designed specifically for driving highly capacitive or relatively low-impedance loads. High Impedance comes to active low enable pin of these ICs where output-enable (OE)’ input places the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. (OE)’ does not affect the internal operations of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

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 14 ns. They can drive 10 LS-TTL loads at a time. Which means that the output pin of D-type flip-flop can drive 10 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.


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 14 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
Active Low Enable (OE') 1
Clock (CLK) 11
Power Supply (VCC) 20
Ground (GND) 10
Country of Origin China


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