SN74LS09NSR Texas Instruments In Stock
SN74LS09NSR is a quad 2-input AND gate with open-collector outputs by Texas Instruments. Key specs: 4 gates, 2 inputs each, open-collector TTL logic, SN-package reel format. From $0.2832, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $0.2832(MOQ 250)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74LS09NSR?
- Quad 2-input AND gate with open-collector outputs for wired-AND bus configurations
- TTL-compatible logic levels ensure seamless integration with 74LS-series devices
- Open-collector design allows flexible output voltage levels up to 5.5V
- Small-reel (NSR) package simplifies high-volume automated assembly
- Low power Schottky technology for reduced power consumption
What is SN74LS09NSR used for?
SN74LS09NSR is widely used in digital logic systems requiring wired-AND bus structures, such as microprocessor bus arbitration, interrupt line sharing, and signal multiplexing. It is suitable for industrial control circuits, embedded system interfaces, and communication equipment where multiple signal sources must share a common output line without bus contention.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for SN74LS09NSR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the SN74LS09NSR and what does it do?
The SN74LS09NSR is a quad 2-input AND gate with open-collector outputs from Texas Instruments. It contains four independent AND gates, each with two inputs, and the open-collector output allows multiple devices to share a common bus line using a wired-AND configuration.
What package type does the SN74LS09NSR use, and is it suitable for SMT assembly?
The SN74LS09NSR comes in an NSR small-reel tape-and-reel package, making it ideal for surface-mount technology (SMT) automated assembly. The NSR suffix indicates a smaller reel size for low-to-mid volume production runs.
What are the typical applications for the SN74LS09NSR?
Typical applications include wired-AND bus arbitration in microprocessor systems, shared interrupt lines in embedded designs, signal multiplexing in communication equipment, and industrial control logic where multiple outputs drive a single bus without requiring additional buffer ICs.
What is the difference between open-collector and standard totem-pole outputs in logic gates?
Open-collector outputs lack an internal pull-up transistor, so an external pull-up resistor is required to define the high logic level. This allows multiple open-collector outputs to be connected together (wired-AND), whereas standard totem-pole outputs cannot be directly tied together without causing bus contention.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250+ | $0.4333 | $108.32 |
| 500+ | $0.4147 | $207.34 |
| 1000+ | $0.3791 | $379.10 |
| 4000+ | $0.3690 | $1476.00 |
| 10000+ | $0.3380 | $3380.00 |
| 100000+ | $0.2832 | $28320.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”