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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | 54LS |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 4 |
| Number of Bits per Element | 1 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 1mA, 12mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | 14-CDIP (0.300", 7.62mm) |
| Supplier Device Package | 14-CDIP |
The DM54LS125AJ/883 is a military-grade quad non-inverting buffer from National Semiconductor, designed for extreme environments. Operating from 4.5V to 5.5V, it provides 1mA source and 12mA sink current, sufficient for TTL loads. Its 3-State outputs allow bus isolation, while the 14-CDIP ceramic package ensures durability from -55°C to 125°C. Ideal for aerospace, defense, and industrial applications requiring high reliability.
- Military Temperature Range (-55°C to 125°C): Operates reliably in extreme conditions.
- Ceramic DIP Package: Provides superior mechanical and thermal stability.
- Quad-Channel Design: Integrates four buffers, saving board space.
- 3-State Outputs: Enables safe bus sharing in critical systems.
Military Avionics Data Buses
With its -55°C to 125°C operating range and ceramic package, this buffer is ideal for avionics systems requiring high reliability in extreme temperatures.
Space-Grade Telemetry
In satellite telemetry systems, the DM54LS125AJ/883 buffers sensor data to the main controller, ensuring signal integrity in radiation-prone environments.
Defense Communication Equipment
The 3-State outputs allow secure isolation of communication lines, preventing unauthorized data access in military radios.
Industrial Process Control
In harsh industrial settings, this buffer drives control signals to actuators, withstanding temperature fluctuations and vibration.
Legacy TTL System Interfacing
For maintaining older 5V TTL systems, this buffer provides reliable signal buffering without redesigning the entire board.
Redundant Flight Control Systems
The quad-channel design enables redundant signal paths, critical for fail-safe operation in aircraft control systems.
- Q: What logic family does the DM54LS125AJ/883 belong to?
- A: It is part of the 54LS family, a military-grade low-power Schottky TTL series.
- Q: What is the function of this IC?
- A: It is a quad (4-channel) non-inverting buffer with 3-State outputs, ideal for bus isolation.
- Q: How many channels does it have?
- A: It has 4 independent buffer channels, each with a 3-State output.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, standard for TTL logic.
- Q: What is the output current capability?
- A: It can source 1mA and sink 12mA, suitable for driving TTL loads.
- Q: What package is available?
- A: It comes in a 14-CDIP (0.300", 7.62mm) ceramic DIP, suitable for harsh environments.
DM54LS125AJ/883.pdf
- Q: What logic family does the DM54LS125AJ/883 belong to?
- A: It is part of the 54LS family, a military-grade low-power Schottky TTL series.
- Q: What is the function of this IC?
- A: It is a quad (4-channel) non-inverting buffer with 3-State outputs, ideal for bus isolation.
- Q: How many channels does it have?
- A: It has 4 independent buffer channels, each with a 3-State output.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, standard for TTL logic.
- Q: What is the output current capability?
- A: It can source 1mA and sink 12mA, suitable for driving TTL loads.
- Q: What package is available?
- A: It comes in a 14-CDIP (0.300", 7.62mm) ceramic DIP, suitable for harsh environments.