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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | 54ALS |
| Packaging | | |
| 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 | 15mA, 48mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-CFlatPack |
| Supplier Device Package | 20-CFP |
| ROHS |  |
The SNJ54ALS244CW is a high-performance non-inverting buffer from Texas Instruments, part of the advanced 54ALS logic family. It integrates two independent channels with 3-State outputs, capable of driving up to 48mA of sink current. Operating across a 4.5V to 5.5V supply range, it ensures robust signal buffering in demanding 5V environments. Housed in a compact 20-CFlatPack, this IC is engineered for military and aerospace applications requiring exceptional reliability over a -55°C to 125°C temperature range. Its primary roles include bus interfacing, signal regeneration, and driving capacitive loads in high-speed digital systems.
- Wide Temperature Range (-55°C to 125°C): Guarantees reliable operation in extreme military and industrial environments.
- High Sink Current (48mA): Provides strong drive capability for heavily loaded buses and long interconnects.
- 3-State Outputs: Enables efficient bus multiplexing and prevents data contention in shared-line architectures.
- Low Power 54ALS Technology: Balances high speed with reduced power consumption compared to older ALS families.
High-Reliability Bus Interfacing
In aerospace and defense systems, the SNJ54ALS244CW's 3-State outputs and military temperature range (-55°C to 125°C) enable reliable data transfer on a shared backplane, preventing bus contention in harsh environments.
Signal Buffering for Memory Address Lines
When driving multiple memory banks, this buffer's high 48mA sink current ensures fast, clean transitions on address lines, reducing propagation delays and improving system timing margins.
Level Shifting in Mixed-Voltage Systems
Although designed for 5V, its inputs can be driven by 3.3V logic in many cases. The buffer regenerates the signal to full 5V levels, allowing seamless interfacing between legacy and modern components.
Driving High-Capacitance Loads
For long PCB traces or cables, the 54ALS244 provides the necessary fan-out and drive strength to overcome capacitive loading, maintaining signal integrity without additional discrete transistors.
Industrial Control Input/Output Modules
In PLCs and industrial controllers, this buffer isolates and drives control signals to actuators and sensors, ensuring stable operation despite electrical noise and temperature extremes.
Redundant System Architecture
The 3-State feature allows multiple buffer outputs to be tied together. In fault-tolerant systems, this enables redundant paths to be activated only when needed, enhancing system availability.
- Q: What is the logic family of the SNJ54ALS244CW?
- A: It belongs to the 54ALS logic family, known for low power consumption and high speed.
- Q: What is the function of this IC?
- A: It is a non-inverting buffer with 2 channels, designed to strengthen signals for driving heavier loads.
- Q: What type of output does it have?
- A: It features 3-State outputs, allowing for connection to a shared bus without contention.
- Q: What is the operating voltage range?
- A: The recommended supply voltage is 4.5V to 5.5V, making it suitable for standard 5V systems.
- Q: What is the output current capability?
- A: It can source or sink 15mA and 48mA respectively, providing robust drive for peripheral circuits.
- Q: What package is available?
- A: This model comes in a 20-CFlatPack, ideal for space-constrained, high-reliability applications.
SNJ54ALS244CW.pdf
- Q: What is the logic family of the SNJ54ALS244CW?
- A: It belongs to the 54ALS logic family, known for low power consumption and high speed.
- Q: What is the function of this IC?
- A: It is a non-inverting buffer with 2 channels, designed to strengthen signals for driving heavier loads.
- Q: What type of output does it have?
- A: It features 3-State outputs, allowing for connection to a shared bus without contention.
- Q: What is the operating voltage range?
- A: The recommended supply voltage is 4.5V to 5.5V, making it suitable for standard 5V systems.
- Q: What is the output current capability?
- A: It can source or sink 15mA and 48mA respectively, providing robust drive for peripheral circuits.
- Q: What package is available?
- A: This model comes in a 20-CFlatPack, ideal for space-constrained, high-reliability applications.