Overview
The SN74ACT374DWR is an octal D-type edge-triggered flip-flop integrated circuit produced by Texas Instruments. This device is part of the ACT series, known for its high-speed and low-power consumption. It operates within a voltage range of 4.5V to 5.5V, making it suitable for a variety of digital logic applications. The SN74ACT374DWR features 3-state outputs, which can be set to a high-impedance state, allowing for bus-driven applications without the need for additional interface components.
Key Specifications
| Parameter | Unit | Min | Typ | Max |
|---|---|---|---|---|
| VCC (Supply Voltage) | V | 4.5 | 5.5 | |
| VIH (High-level Input Voltage) | V | 2 | ||
| VIL (Low-level Input Voltage) | V | 0.8 | ||
| IOH (High-level Output Current) | mA | -24 | ||
| IOL (Low-level Output Current) | mA | 24 | ||
| TA (Operating Free-air Temperature) | °C | -40 | 85 | |
| fclock (Clock Frequency) | MHz | 70 | 90 | |
| tpd (Propagation Delay Time) | ns | 10 | ||
| RθJA (Junction-to-Ambient Thermal Resistance) | °C/W | 58 |
Key Features
- Operation within a voltage range of 4.5V to 5.5V.
- Inputs accept voltages up to 5.5V and are TTL-voltage compatible.
- Maximum propagation delay time (tpd) of 10ns at 5V.
- 3-state outputs designed for driving highly capacitive or low-impedance loads.
- Buffered output-enable (OE) input to control output states.
- Suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
Applications
- Buffer registers and working registers in digital systems.
- I/O ports and bidirectional bus drivers in bus-organized systems.
- Digital logic circuits requiring high-speed and low-power consumption.
- Military and space applications due to its robustness and radiation tolerance.
Q & A
- What is the operating voltage range of the SN74ACT374DWR?
The operating voltage range is 4.5V to 5.5V.
- What is the maximum propagation delay time (tpd) at 5V?
The maximum propagation delay time is 10ns.
- What is the purpose of the output-enable (OE) input?
The OE input can set the outputs to either a normal logic state or a high-impedance state.
- What are the typical applications of the SN74ACT374DWR?
Typical applications include buffer registers, I/O ports, bidirectional bus drivers, and working registers.
- What is the clock frequency range of the SN74ACT374DWR?
The clock frequency range is from 70 MHz to 90 MHz.
- What is the junction-to-ambient thermal resistance for the SOIC package?
The junction-to-ambient thermal resistance is 58°C/W.
- Is the SN74ACT374DWR suitable for military and space applications?
Yes, it is suitable for military and space applications due to its robustness and radiation tolerance.
- What are the input and output current ratings?
The high-level output current (IOH) is -24 mA, and the low-level output current (IOL) is 24 mA.
- What is the operating free-air temperature range?
The operating free-air temperature range is from -40°C to 85°C.
- What type of packages is the SN74ACT374DWR available in?
The SN74ACT374DWR is available in SOIC (DW) packages among others.
