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| Product attributes | Property Value |
| Manufacturer | Fairchild Semiconductor |
| Product Series | 74LCX |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Buffer, Non-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 74LCX244SJ from Fairchild Semiconductor is a non-inverting buffer designed for low-voltage, high-speed applications. Operating from 2V to 3.6V, it provides 3-state outputs with 24mA sink/source capability. Housed in a 20-SOIC package, it is ideal for 3.3V bus interfacing, memory buffering, and signal distribution in networking and consumer electronics.
- Low-Voltage Operation (2V-3.6V): Compatible with 3.3V and 2.5V logic systems.
- 24mA Output Drive: Ensures strong signal integrity for bus lines.
- 3-State Outputs: Facilitates bus sharing and multiplexing.
- Standard SOIC Package: Easy to integrate into existing PCB designs.
3.3V Bus Interfacing in Networking Equipment
With a 2V to 3.6V supply, the 74LCX244SJ is ideal for buffering address and data lines in routers and switches operating at 3.3V logic levels.
Level Shifting Between 2.5V and 3.3V Domains
Its wide supply range allows it to act as a level translator between 2.5V and 3.3V logic, simplifying mixed-voltage PCB designs.
Memory Module Buffering
3-state outputs enable the buffer to drive memory module data lines while providing high-impedance state during read/write cycles, preventing bus contention.
FPGA and CPLD Interface Buffering
Use to buffer signals between FPGAs and peripheral devices, protecting sensitive FPGA I/O from excessive capacitive loading.
Consumer Electronics Signal Distribution
In set-top boxes and gaming consoles, this buffer distributes control signals to multiple subsystems with consistent drive strength.
Industrial Sensor Arrays
Buffers sensor outputs in industrial automation, ensuring clean signals reach the PLC over longer cable runs.
- Q: What logic family does the 74LCX244SJ belong to?
- A: It belongs to the 74LCX family, which is a low-voltage, high-speed CMOS logic series.
- Q: What is the function of this IC?
- A: It is a non-inverting buffer with 3-state outputs, designed for bus-oriented applications.
- Q: How many channels does it have?
- A: It provides 2 channels (octal buffer with two 4-bit sections).
- Q: What is the output type?
- A: It features 3-state outputs, allowing connection to shared data buses.
- Q: What is the operating voltage range?
- A: It operates from 2V to 3.6V, compatible with 3.3V and lower-voltage systems.
- Q: What package is available?
- A: It comes in a 20-SOIC package with a 5.30mm width, suitable for standard PCB assembly.
74LCX244SJ.pdf
- Q: What logic family does the 74LCX244SJ belong to?
- A: It belongs to the 74LCX family, which is a low-voltage, high-speed CMOS logic series.
- Q: What is the function of this IC?
- A: It is a non-inverting buffer with 3-state outputs, designed for bus-oriented applications.
- Q: How many channels does it have?
- A: It provides 2 channels (octal buffer with two 4-bit sections).
- Q: What is the output type?
- A: It features 3-state outputs, allowing connection to shared data buses.
- Q: What is the operating voltage range?
- A: It operates from 2V to 3.6V, compatible with 3.3V and lower-voltage systems.
- Q: What package is available?
- A: It comes in a 20-SOIC package with a 5.30mm width, suitable for standard PCB assembly.