SN74LS37D Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74LS37D is a quad 2-input positive-NAND buffer logic gate IC from Texas Instruments in the LS TTL family, packaged in a 14-pin SOIC. It provides four independent high-drive NAND gates with 24mA output sink current and 45pF load capacitance, supporting TTL logic levels from 0°C to 70°C commercial temperature range. Available in stock with worldwide shipping for digital logic and bus driving applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- SN74LS37D Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Quad 2-input NAND buffer with 24mA IOL high sink current drive capability, enabling direct TTL bus driving without external buffers
- LS TTL family with 45pF load capacitance rating and 14-pin SOIC package, balancing performance and compact board footprint for industrial and consumer digital logic
- Four independent NAND gates in a single package reduce component count and simplify PCB routing in combinational logic and glue-logic circuit designs
Applications
The SN74LS37D is commonly used in digital system glue logic, address decoding, control signal generation, and bus interface circuits in embedded systems and microprocessor-based designs. Its high sink current output makes it suitable for driving indicator LEDs, relay drivers, and other medium-current loads directly without additional buffering stages. It is also employed in legacy TTL-compatible systems, industrial controllers, and test equipment where quad NAND gate functionality with robust drive strength is required.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Family | LS |
| JESD-30 Code | R-PDSO-G14 |
| Load Capacitance (CL) | 45pF |
| Logic IC Type | NAND GATE |
| Max I(ol) | 0.024A |
| Number of Functions | 4 |
| Number of Inputs | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Power Supply Current-Max (ICC) | 12mA |
| Prop. Delay@Nom-Sup | 24ns |
| Propagation Delay (tpd) | 24ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 5.25V |
| Supply Voltage-Min (Vsup) | 4.75V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | TTL |
| Temperature Grade | COMMERCIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the SN74LS37D and what logic function does it perform?
The SN74LS37D is a quad 2-input positive-NAND buffer from Texas Instruments in the LS TTL family, providing four independent NAND gates with high 24mA output sink current capability for driving TTL-level logic buses, indicators, and other medium-load digital circuits.
What are the key electrical specifications of the SN74LS37D?
The SN74LS37D features a maximum output sink current (IOL) of 24mA, load capacitance rating of 45pF, TTL logic family (LS), and operates over the commercial temperature range of 0°C to 70°C, with four 2-input NAND gate functions integrated in a single 14-pin package.
What package does the SN74LS37D use?
It is packaged in a 14-pin SOIC (Small Outline Integrated Circuit) with plastic/epoxy body material, offering a compact surface-mount footprint suitable for automated PCB assembly in consumer electronics, industrial control panels, and communication systems.
Is the SN74LS37D RoHS compliant and what temperature range does it support?
The SN74LS37D has a Pb-free code of No, indicating it is not a lead-free part and may not be suitable for RoHS-restricted designs. It supports a commercial operating temperature range of 0°C to 70°C, making it appropriate for indoor and controlled-environment industrial and consumer electronics applications.
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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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