Overview
The SN74128NSR is a bipolar integrated circuit produced by Texas Instruments, designed as a single 4-input NOR gate. This component operates within the 7400 logic family and is suitable for various digital logic applications. Although the SN74128 is now obsolete and no longer recommended for new designs, it remains relevant for existing systems and legacy projects.
Key Specifications
| Specification | Value |
|---|---|
| Logic Function | NOR |
| Number of Gates | 4 Gate |
| Logic Family | 7400 |
| Number of Input Lines | 8 Input |
| Package Type | SOP (Small Outline Package) |
| Number of Pins | 14 |
| Operating Temperature Range | 0°C to 70°C |
| RoHS Compliance | Yes |
| Lead Finish/Ball Material | NIPDAU (Nickel, Palladium, Gold) |
| Moisture Sensitivity Level (MSL) | Level-1-260C-UNLIM |
Key Features
- Bipolar Technology: The SN74128NSR uses bipolar transistor technology, providing high speed and low power consumption.
- NOR Gate Functionality: It functions as a single 4-input NOR gate, making it suitable for various digital logic circuits.
- Wide Operating Voltage Range: Although the specific voltage range for this model is not detailed, it generally operates within the 4.75-V to 5.25-V range typical for 7400 series logic ICs.
- Compact Packaging: Available in a Small Outline Package (SOP), which is space-efficient and suitable for modern PCB designs.
- RoHS Compliance: The component is compliant with EU RoHS requirements, making it environmentally friendly and suitable for use in a wide range of applications.
Applications
- Digital Logic Circuits: The SN74128NSR is used in various digital logic circuits where NOR gate functionality is required.
- Legacy Systems: Given its obsolescence, it is primarily used in maintaining and repairing existing systems that rely on this component.
- Education and Training: It can be used in educational settings to teach digital logic and electronics.
- Industrial Control Systems: It may be found in older industrial control systems where its specific characteristics are still beneficial.
Q & A
- What is the logic function of the SN74128NSR?
The SN74128NSR functions as a single 4-input NOR gate.
- What is the package type of the SN74128NSR?
The SN74128NSR is available in a Small Outline Package (SOP).
- Is the SN74128NSR RoHS compliant?
Yes, the SN74128NSR is RoHS compliant.
- What is the operating temperature range of the SN74128NSR?
The operating temperature range is from 0°C to 70°C.
- Why is the SN74128NSR considered obsolete?
The SN74128NSR is considered obsolete because Texas Instruments has discontinued its production and does not recommend it for new designs.
- What are some common applications of the SN74128NSR?
It is commonly used in digital logic circuits, legacy systems, educational settings, and older industrial control systems.
- What is the moisture sensitivity level (MSL) of the SN74128NSR?
The MSL of the SN74128NSR is Level-1-260C-UNLIM.
- What type of lead finish does the SN74128NSR have?
The SN74128NSR has a NIPDAU (Nickel, Palladium, Gold) lead finish.
- Can the SN74128NSR be used in new designs?
No, Texas Instruments does not recommend the SN74128NSR for new designs due to its obsolescence.
- Where can I find detailed specifications for the SN74128NSR?
Detailed specifications can be found on Texas Instruments' official website, as well as on distributor websites like Mouser and Digi-Key.
