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3-State Output Octal D-Type Flip-Flop IC - 74HC374
3-State Output Octal D-Type Flip-Flop IC - 74HC374
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- Buffered inputs
- Common three-state output enable control
- Three-state outputs
- Bus line driving capability
- Balanced propagation delay and transition times
- Significant power reduction compared to LSTTL logic ICs
- High noise immunity
- Direct LSTTL input logic compatibility
- CMOS Input compatibility
- 10 LSTTL Load standard outputs
- 15 LSTTL Load bus driver outputs
3-State Output Octal D-Type Flip-Flop IC - 74HC374
The 74HC Series 74HC374 is a 20 Pin 3-State output Octal D-Type Flip-Flop IC having 2V to 6V Operating Voltage range with 7.8mA output current and high noise immunity. It has the ability to drive 15 LS-TTL loads. Due to the large output drive capability and the 3-STATE feature, these devices are ideally suited for interfacing with bus lines in a bus organized system.
The eight edge-triggered flip-flops enter data into their registers on the LOW to HIGH transition of the clock (CP). The output-enable (OE) controls the 3-state outputs and is independent of the register operation. When OE is HIGH, the outputs are in the high-impedance state.
Pinout:
Package Includes:
- 1 x IC - 74HC374
Specifications:
| 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 |
Shipping & Returns
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ADDITIONAL RESOURCES
1.What is the difference between the 74HC374 and 74HC574 ICs?
- Both the 74HC374 and 74HC574 are octal D-type flip-flops with three states, but their input and output configurations differ. The 74HC374 has a common clock input and eight separate data inputs, whereas the 74HC574 has eight separate clock inputs and a common data input. The 74HC374 has a latch enable input, which enables or disables the flip-flops, whereas the 74HC574 does not.
2.How does the 3-state output feature of the 74HC374 IC work?
- The 74HC374 IC's 3-state output feature allows the output pins to be placed in a high-impedance state, effectively disconnecting them from the circuit. This function is frequently used in bus systems where multiple devices must share the same data lines.