Overview
The SN74HC374NS, produced by Texas Instruments, is an octal edge-triggered D-type flip-flop integrated circuit. This component features 3-state outputs, making it suitable for driving highly capacitive or relatively low-impedance loads. It is particularly useful for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. The device operates over a wide voltage range of 2 V to 6 V and is known for its low power consumption and high-speed performance.
Key Specifications
| Parameter | Unit | Min | Max | |
|---|---|---|---|---|
| Supply Voltage (VCC) | V | 2 | 5 | 6 |
| Operating Temperature (TA) | °C | -40 | 85 | |
| Clock Frequency (fclock) | MHz | 6 (at 2 V) | 35 (at 6 V) | |
| Pulse Duration, CLK High or Low (tw) | ns | 14 (at 6 V) | 120 (at 2 V) | |
| Setup Time, Data Before CLK↑ (tsu) | ns | 17 (at 6 V) | 150 (at 2 V) | |
| Hold Time, Data After CLK↑ (th) | ns | 5 | 13 | |
| Propagation Delay (tpd) | ns | 19 (at 6 V) | 345 (at 2 V) | |
| Output Drive Current (IOH/IOL) | mA | ±7.8 | ||
| Quiescent Current (ICC) | µA | 8 | 80 | |
| Input Capacitance (Ci) | pF | 3 | 10 |
Key Features
- Wide operating voltage range of 2 V to 6 V
- High-current 3-state true outputs capable of driving up to 15 LSTTL loads
- Eight D-type flip-flops in a single package
- Full parallel access for loading
- Low power consumption, with a maximum quiescent current of 80 µA
- Typical propagation delay of 14 ns
- ±6-mA output drive at 5 V
- Low input current of 1 µA maximum
- Positive edge-triggered
- Tri-state outputs for bus driving without interface or pullup components
Applications
The SN74HC374NS is suitable for various applications, including:
- Implementing buffer registers
- I/O ports
- Bidirectional bus drivers
- Working registers
- Digital data processing systems
- Communication, computing, and consumer electronics
Q & A
- What is the operating voltage range of the SN74HC374NS?
The operating voltage range is 2 V to 6 V. - How many D-type flip-flops are included in the SN74HC374NS?
There are eight D-type flip-flops in a single package. - What is the maximum clock frequency of the SN74HC374NS?
The maximum clock frequency is 35 MHz at 6 V. - What is the typical propagation delay of the SN74HC374NS?
The typical propagation delay is 14 ns. - What is the quiescent current of the SN74HC374NS?
The maximum quiescent current is 80 µA. - What type of outputs does the SN74HC374NS have?
The outputs are 3-state, non-inverted. - What is the operating temperature range of the SN74HC374NS?
The operating temperature range is -40°C to 85°C. - How many loads can the outputs of the SN74HC374NS drive?
The outputs can drive up to 15 LSTTL loads. - Is the SN74HC374NS suitable for battery-powered applications?
Yes, due to its low power consumption. - What is the input capacitance of the SN74HC374NS?
The input capacitance is 3 pF.
