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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Buffer, Inverting |
| Number of Elements | 6 |
| Number of Bits per Element | 1 |
| Input Type | - |
| Output Type | Open Collector |
| Current - Output High, Low | 250µA, 30mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -55°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | 14-CDIP (0.300", 7.62mm) |
| Supplier Device Package | 14-CDIP (0.300", 7.62mm) |
The DM5406J-MLS is a monolithic hex inverting buffer from National Semiconductor, designed for high-reliability applications. It operates from a standard 4.5V to 5.5V supply and features six open-collector outputs capable of sinking 30mA. This makes it ideal for driving lamps, relays, or for implementing wired-OR logic functions. Housed in a hermetic 14-pin CDIP package, it operates over the full military temperature range of -55°C to 125°C, ensuring robust performance in extreme environments.
- High Current Sink (30mA): Directly drives relays, LEDs, and other loads without external transistors, saving board space.
- Open-Collector Outputs: Enables wired-OR logic and simple level shifting to higher voltage systems, offering design flexibility.
- Military Temperature Range (-55°C to 125°C): Guarantees reliable operation in harsh aerospace and defense environments.
- Standard TTL Compatibility: Easily interfaces with legacy 5V logic systems, simplifying integration into existing designs.
High-Voltage Level Shifting
Utilize the open-collector outputs to shift logic levels from 5V TTL to higher voltages (e.g., 12V or 24V) by connecting an external pull-up resistor to the desired voltage rail. This is essential in industrial control systems.
Wired-OR Bus Interfacing
Connect multiple DM5406J-MLS outputs together to create a wired-OR configuration. This allows multiple sources to drive a single line without contention, simplifying interrupt lines or shared data buses.
Driving High-Current Loads
With a 30mA sink capability, the buffer can directly drive relays, solenoids, and incandescent lamps in avionics or military systems, reducing the need for external transistor drivers.
Inverting Signal Buffering
Use the six inverting channels to buffer and invert digital signals in noisy environments. The high noise margin of TTL logic ensures reliable signal integrity over long PCB traces.
LED and Indicator Driving
Drive LED indicators directly from the open-collector outputs. The current sink capability is sufficient for standard LEDs, simplifying board design and reducing component count.
Legacy TTL System Integration
Integrate this buffer into existing 5V TTL systems to interface with newer logic families or to provide additional fan-out for heavily loaded clock or control lines.
- Q: What is the logic family of the DM5406J-MLS?
- A: This device is a standard TTL logic buffer, operating within a 4.5V to 5.5V supply range.
- Q: What is the function of this IC?
- A: It provides six (6) inverting buffer channels, ideal for signal inversion and line driving.
- Q: What type of output does the DM5406J-MLS have?
- A: It features open-collector outputs, allowing for wired-OR connections and level shifting.
- Q: What is the output current capability?
- A: The sink current is 30mA, while the output leakage current is 250µA, suitable for driving relays or LEDs.
- Q: What is the operating temperature range?
- A: It is designed for military-grade applications with a range of -55°C to 125°C.
- Q: What package is available?
- A: It comes in a 14-pin CDIP (Ceramic Dual In-line Package) with a 0.300-inch body width.
DM5406J-MLS.pdf
- Q: What is the logic family of the DM5406J-MLS?
- A: This device is a standard TTL logic buffer, operating within a 4.5V to 5.5V supply range.
- Q: What is the function of this IC?
- A: It provides six (6) inverting buffer channels, ideal for signal inversion and line driving.
- Q: What type of output does the DM5406J-MLS have?
- A: It features open-collector outputs, allowing for wired-OR connections and level shifting.
- Q: What is the output current capability?
- A: The sink current is 30mA, while the output leakage current is 250µA, suitable for driving relays or LEDs.
- Q: What is the operating temperature range?
- A: It is designed for military-grade applications with a range of -55°C to 125°C.
- Q: What package is available?
- A: It comes in a 14-pin CDIP (Ceramic Dual In-line Package) with a 0.300-inch body width.