SN74S09D Texas Instruments In Stock
SN74S09D is a quad 2-input AND gate with open-collector outputs by Texas Instruments, using 74S Schottky TTL technology. Key specs: 4 independent AND gates, open-collector outputs (up to 5.5V), 3mA sink current, 3ns propagation delay. From $1.84, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $1.8400(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74S09D?
- Quad 2-input AND gate with open-collector outputs enabling wired-AND configurations
- 74S Schottky TTL technology for high-speed switching with ~3ns propagation delay
- Open-collector outputs support flexible output voltage levels up to 5.5V
- Compatible with standard TTL logic levels for easy integration into existing designs
- SOIC-14 package (SN74S09D) for compact PCB footprint
What is SN74S09D used for?
The SN74S09D is widely used in digital logic circuits requiring wired-AND bus connections, making it ideal for interrupt controllers and multi-master bus arbitration systems. Its open-collector outputs allow multiple devices to drive a shared line, commonly applied in microcontroller glue logic, signal conditioning, and industrial control systems. The device is also used in level-shifting applications where outputs must drive loads at voltages higher than the supply.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for SN74S09D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the SN74S09D and what does it do?
The SN74S09D is a quad 2-input AND gate IC with open-collector outputs from Texas Instruments. It contains four independent AND gates, each with two inputs and one open-collector output. Open-collector outputs allow multiple outputs to be wired together on a shared bus, making it ideal for implementing wired-AND logic in digital systems.
What are the key electrical specifications of the SN74S09D?
The SN74S09D operates on a 5V VCC supply and features 74S Schottky TTL logic levels with a typical propagation delay of approximately 3ns. The open-collector outputs can sink up to 20mA and support output voltages up to 5.5V. Input high voltage (VIH) is 2V minimum and input low voltage (VIL) is 0.8V maximum.
What is the difference between SN74S09D and SN7409D?
The SN74S09D uses 74S Schottky TTL technology, which provides significantly faster switching speeds (approximately 3ns propagation delay) compared to the standard SN7409D. Both are quad 2-input AND gates with open-collector outputs and pin-compatible, but the 74S series consumes more power in exchange for higher operating frequency.
What package does the SN74S09D come in and what are common alternatives?
The SN74S09D is packaged in a 14-pin SOIC (Small Outline Integrated Circuit) surface-mount package. Common pin-compatible alternatives include the SN74LS09D (low-power Schottky), SN74HCT09D (CMOS), and SN7409N (DIP through-hole version). All share the same quad 2-input AND gate with open-collector outputs functionality.
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 |
|---|---|---|
| 1+ | $5.9724 | $5.97 |
| 3+ | $4.9770 | $14.93 |
| 6+ | $4.3798 | $26.28 |
| 111+ | $2.7000 | $299.70 |
| 500+ | $1.9400 | $970.00 |
| 1000+ | $1.8400 | $1840.00 |
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.”