Overview
The SN74HC240DWE4 is a dual 4-input inverter and buffer integrated circuit (IC) manufactured by Texas Instruments. This IC belongs to the 74HC series, known for its high-speed CMOS logic and low power consumption. Designed for surface-mount applications, it is housed in a 20-SOIC package. The SN74HC240DWE4 is widely used in digital logic circuits, particularly in applications requiring signal inversion and buffering with three-state outputs. Its primary target users include engineers and designers working on industrial automation, consumer electronics, and communication systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Category | Logic - Gates and Inverters | - | - |
| Description | IC Inverter Dual 4-Input | - | - |
| Series | 74HC | - | - |
| Manufacturer | Texas Instruments | - | - |
| Logic Type | Inverter, Buffer | - | - |
| Circuit Count | 2 | - | - |
| Input Count | 4 | - | - |
| Features | Three-State | - | - |
| Supply Voltage | 2 V ~ 6 V | V | - |
| Static Current (Max) | 8 µA | µA | - |
| Output Current (High/Low) | 7.8 mA / 7.8 mA | mA | - |
| Logic Level (Low) | 0.5 V ~ 1.8 V | V | - |
| Logic Level (High) | 1.5 V ~ 4.2 V | V | - |
| Propagation Delay (Max) | 26 ns @ 6 V, 150 pF | ns | - |
| Operating Temperature | -40°C ~ 85°C | °C | - |
| Mounting Type | Surface Mount | - | - |
| Package | 20-SOIC | - | - |
Key Features
- Wide operating voltage range of 2 V to 6 V, suitable for various digital logic applications.
- Three-state outputs enable bus-oriented applications, allowing multiple devices to share a common bus.
- High-speed CMOS technology ensures low power consumption and compatibility with TTL logic levels.
- Dual 4-input configuration provides flexibility in designing complex logic circuits.
- Robust performance in harsh environments, with an operating temperature range of -40°C to 85°C.
Applications
The SN74HC240DWE4 is widely used in various industries due to its versatile functionality. In industrial automation, it is employed in control systems for signal inversion and buffering. In consumer electronics, it is used in devices such as smartphones and tablets to manage digital signals efficiently. Additionally, it finds applications in communication systems, where it ensures reliable data transmission by driving bus lines and buffering memory address registers. Its three-state outputs make it particularly suitable for bus-oriented systems, enabling efficient data sharing between multiple devices.
Q & A
1. What is the operating voltage range of the SN74HC240DWE4?
The operating voltage range is 2 V to 6 V.
2. What is the maximum static current of the SN74HC240DWE4?
The maximum static current is 8 µA.
3. What is the propagation delay of the SN74HC240DWE4 at 6 V?
The propagation delay is 26 ns at 6 V with a load capacitance of 150 pF.
4. What is the logic type of the SN74HC240DWE4?
The logic type is inverter and buffer.
5. What is the package type of the SN74HC240DWE4?
The package type is 20-SOIC.
6. What are the key features of the SN74HC240DWE4?
Key features include three-state outputs, wide operating voltage range, and high-speed CMOS technology.
7. What is the operating temperature range of the SN74HC240DWE4?
The operating temperature range is -40°C to 85°C.
8. What are the typical applications of the SN74HC240DWE4?
Typical applications include industrial automation, consumer electronics, and communication systems.
9. How many inputs does the SN74HC240DWE4 have?
It has 4 inputs.
10. What is the output current capability of the SN74HC240DWE4?
The output current capability is 7.8 mA for both high and low states.
