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| Product attributes | Property Value |
| Manufacturer | Fairchild Semiconductor |
| Product Series | 74LCX |
| Packaging | Bulk | |
| Part Status | Active |
| 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 | 2V ~ 3.6V |
| 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 74LCX240SJX is a low-voltage CMOS inverting buffer from Fairchild Semiconductor, designed for 3.3V digital systems. Operating from 2V to 3.6V, it provides 3-state outputs with 24mA drive capability. This buffer is ideal for signal inversion and bus driving in low-voltage applications, offering high speed and low power consumption. Its compact SOIC-20 package makes it suitable for space-constrained designs.
- Low-Voltage Operation (2V-3.6V): Perfect for 3.3V and 2.5V logic systems.
- High 24mA Output Drive: Ensures reliable signal integrity in high-speed designs.
- 3-State Outputs: Enables efficient bus sharing and prevents data conflicts.
- Low Power Consumption: Ideal for battery-powered portable devices.
Low-Voltage Bus Buffering
The 74LCX240SJX is ideal for buffering data buses in 3.3V systems. Its 3-state outputs allow multiple devices to share the bus without contention.
Signal Inversion in 3.3V Logic
Use this inverting buffer to invert logic signals while providing high drive current (24mA) for reliable signal transmission.
Level Shifting from 3.3V to 2.5V
With a 2V to 3.6V supply range, this buffer can interface between 3.3V and 2.5V logic, simplifying mixed-voltage designs.
Driving High-Speed Memory Interfaces
The 24mA output drive and low-voltage operation make it suitable for DDR memory address and control line buffering.
Portable Electronics Signal Conditioning
In battery-powered devices, this buffer provides low-power, high-speed signal conditioning for sensors and communication interfaces.
Industrial Sensor Interfacing
Use it to buffer and invert sensor signals in industrial control systems operating at 3.3V logic levels.
- Q: What is the logic family of the 74LCX240SJX?
- A: It belongs to the 74LCX (Low-Voltage CMOS) family, designed for low-voltage, high-speed operation.
- Q: What is the function of this IC?
- A: It is an inverting buffer with 3-state outputs, used for signal inversion and bus driving.
- Q: How many channels does it have?
- A: The technical data specifies 2 channels, though typical 74LCX240 devices are octal buffers; verify your specific configuration.
- Q: What is the output type?
- A: The outputs are 3-State, allowing connection to shared buses with high-impedance control.
- Q: What is the operating voltage range?
- A: It operates from 2V to 3.6V, ideal for low-voltage 3.3V systems.
- Q: What is the package type?
- A: It comes in a 20-SOIC (0.209", 5.30mm Width) surface-mount package.
74LCX240SJX.pdf
- Q: What is the logic family of the 74LCX240SJX?
- A: It belongs to the 74LCX (Low-Voltage CMOS) family, designed for low-voltage, high-speed operation.
- Q: What is the function of this IC?
- A: It is an inverting buffer with 3-state outputs, used for signal inversion and bus driving.
- Q: How many channels does it have?
- A: The technical data specifies 2 channels, though typical 74LCX240 devices are octal buffers; verify your specific configuration.
- Q: What is the output type?
- A: The outputs are 3-State, allowing connection to shared buses with high-impedance control.
- Q: What is the operating voltage range?
- A: It operates from 2V to 3.6V, ideal for low-voltage 3.3V systems.
- Q: What is the package type?
- A: It comes in a 20-SOIC (0.209", 5.30mm Width) surface-mount package.