onsemi 74ACT240SJX
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $94,999.99 | $94,999.99 |
| 15+ | $91,999.99 | $1,379,999.85 |
| 25+ | $89,999.99 | $2,249,999.75 |
| 50+ | $84,999.99 | $4,249,999.50 |
| 100+ | $74,999.99 | $7,499,999.00 |
| N+ | $15,000.00 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | 74ACT |
| Packaging | | |
| Part Status | Obsolete |
| Logic Type | Buffer, Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 4 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 24mA, 24mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-SOIC (0.209", 5.30mm Width) |
| Supplier Device Package | 20-SOP |
| ROHS |  |
The 74ACT240SJX from Fairchild Semiconductor is a dual inverting buffer designed for high-speed 5V logic systems. Operating from 4.5V to 5.5V, it delivers 24mA of sink and source current per channel, ensuring robust signal drive. The 3-state outputs allow for bus sharing in multiplexed applications. Housed in a compact 20-SOIC package, this IC is ideal for memory address buffering, industrial control interfaces, and general-purpose signal conditioning where inverting logic is required.
- High-Speed 74ACT Logic: Ensures minimal propagation delay for time-critical bus and memory applications.
- 3-State Outputs: Enables multiple devices to share a common bus without data corruption.
- 24mA Output Drive: Provides sufficient current to drive LEDs, relays, and long PCB traces.
- Wide 4.5V to 5.5V Supply Range: Compatible with standard 5V logic and power rails.
- Inverting Function: Reduces component count by integrating logic inversion into the buffer.
Bus Interfacing for 5V Systems
Use the 74ACT240SJX to buffer address or data lines in 5V microprocessor systems. Its 3-state outputs allow multiple devices to share the bus without contention, while the inverting function can simplify logic design.
Signal Buffering in Industrial Controls
In industrial PLCs and control systems, this buffer provides robust signal conditioning. The 24mA sink and source capability drives long cable runs and multiple loads, ensuring signal integrity in noisy environments.
Memory Address Driving
Drive SRAM or EPROM address lines with the 74ACT240SJX. The high-speed 74ACT family minimizes propagation delay, critical for fast memory access times in computing applications.
Level Shifting for Mixed-Voltage Boards
While designed for 5V, the TTL-compatible inputs allow interfacing with 3.3V logic. This enables level shifting from 3.3V microcontrollers to 5V peripherals, simplifying mixed-voltage PCB designs.
Peripheral Driver for LEDs and Relays
With 24mA output current, the buffer can directly drive LEDs or small relays. The inverting output can be used to active-low control signals, reducing the need for external inverters.
Test and Measurement Equipment
In ATE (Automated Test Equipment), the 74ACT240SJX provides clean, buffered signals to device-under-test pins. Its 3-state feature enables efficient multiplexing of test channels.
- Q: What is the logic family of the 74ACT240SJX?
- A: It belongs to the 74ACT logic family, known for high-speed operation and TTL-compatible inputs.
- Q: What is the function of this IC?
- A: It is a dual inverting buffer with 3-state outputs, ideal for bus-oriented systems.
- Q: How many channels does it have?
- A: It features 2 channels, each providing inverting buffer functionality.
- Q: What is the output type?
- A: The outputs are 3-State, allowing connection to a shared bus with high-impedance state.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, making it suitable for 5V systems.
- Q: What package is available?
- A: It comes in a 20-SOIC (0.209", 5.30mm Width) package.
74ACT240SJX.pdf
- Q: What is the logic family of the 74ACT240SJX?
- A: It belongs to the 74ACT logic family, known for high-speed operation and TTL-compatible inputs.
- Q: What is the function of this IC?
- A: It is a dual inverting buffer with 3-state outputs, ideal for bus-oriented systems.
- Q: How many channels does it have?
- A: It features 2 channels, each providing inverting buffer functionality.
- Q: What is the output type?
- A: The outputs are 3-State, allowing connection to a shared bus with high-impedance state.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, making it suitable for 5V systems.
- Q: What package is available?
- A: It comes in a 20-SOIC (0.209", 5.30mm Width) package.
