SN74LS32N-NG Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The SN74LS32N-NG is a quad 2-input OR gate IC from Texas Instruments in the low-power Schottky TTL (LS) logic family. It provides four independent OR gate functions with TTL-compatible inputs and outputs in a 14-pin PDIP package. A classic, widely-stocked component suitable for combinational logic design worldwide.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- SN74LS32N-NG Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Quad 2-input OR gate providing four fully independent logic gates in a single 14-pin PDIP package
- Low-power Schottky TTL (LS) logic family balances speed and power consumption for 5V digital logic systems
- TTL-compatible inputs and outputs ensuring seamless interfacing with a broad range of standard logic families
- 14-pin PDIP through-hole package ideal for breadboarding, prototyping, and educational circuit design
Applications
The SN74LS32N-NG is used in combinational logic circuits for signal combining, address decoding, interrupt logic, and Boolean function implementation in microcontroller and microprocessor systems. It is a fundamental building block in digital design education and legacy TTL-based industrial control systems. The device is also applicable in bus control logic, enable signal generation, and any design requiring standard 2-input OR function at 5V TTL signal levels.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the SN74LS32N-NG and what logic function does it perform?
The SN74LS32N-NG is a quad 2-input OR gate IC from Texas Instruments in the LS (Low-power Schottky) TTL logic family. It contains four independent OR gates, each with 2 inputs and 1 output, all operating from a 5V supply. The output is HIGH when either or both inputs are HIGH, following standard positive logic OR gate behavior used in combinational digital circuit design.
What are the electrical characteristics of the SN74LS32N-NG?
The SN74LS32N-NG is part of the 74LS logic family, operating from a 5V supply with TTL-compatible input thresholds (VIH typically 2V, VIL typically 0.8V). It provides typical propagation delays around 15 nanoseconds and low quiescent current consumption characteristic of the LS series. The device is housed in a 14-pin PDIP package and uses standard TTL output drive levels compatible with other LS, S, and HC logic family devices.
What package does the SN74LS32N-NG use and what does the N suffix indicate?
The SN74LS32N-NG uses a 14-pin PDIP (Plastic Dual In-Line Package) through-hole package, indicated by the N suffix in the part number. The NG suffix variant is a non-RoHS-exempt version supplied in tube packaging. The PDIP package is ideal for breadboard prototyping, through-hole PCB assembly, and educational use. Surface-mount equivalents in SOIC or TSSOP packages are available for higher-density production designs.
What are common applications for the SN74LS32N-NG?
The SN74LS32N-NG is commonly used in address decoding, interrupt logic combining, bus arbitration, and general combinational logic implementation in 5V TTL digital systems. It is widely used in educational kits, legacy industrial control boards, embedded microcontroller peripheral logic, and any design requiring simple OR logic functions. Its quad configuration allows four independent signal pairs to be OR-combined within a single compact package.
What are pin-compatible alternatives to the SN74LS32N-NG?
Pin-compatible alternatives to the SN74LS32N-NG include the SN74HCT32 (CMOS with TTL-compatible inputs, lower power), SN74ALS32 (advanced low-power Schottky, faster), and SN74F32 (high-speed Schottky). For surface-mount designs, the SN74LS32DR (SOIC) or SN74LS32PW (TSSOP) are direct package alternatives. When substituting, verify the logic family's propagation delay, supply current, and output drive compatibility with your system.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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