SN74HC165NS Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SN74HC165NS is an 8-bit parallel-in serial-out shift register from Texas Instruments operating from 2 V to 6 V. It features a 30 ns maximum propagation delay at 5 V and fits a 16-pin SOIC package for straightforward PCB integration.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SN74HC165NS Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74HC165NS?
- 8-bit parallel-load capability converts 8 digital inputs to a serial bitstream in a single clock cycle, simplifying microcontroller GPIO expansion
- Wide 2 V to 6 V supply range ensures compatibility with both 3.3 V CMOS and 5 V TTL logic families
- Cascadable architecture allows chaining multiple SN74HC165 devices to read 16, 24, or more parallel inputs over 2 SPI-compatible wires
What is SN74HC165NS used for?
SN74HC165NS is widely used in keyboard matrix scanning, DIP switch reading, and sensor array interfacing where many parallel digital inputs must be serialized to a microcontroller SPI or bit-bang port. Its 2 V to 6 V operating range makes it suitable for both legacy 5 V industrial controllers and modern 3.3 V embedded systems. Cascading multiple devices provides a scalable input expansion solution without additional address decoding logic.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SN74HC165NS datasheet?
SN74HC165NS Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74HC165NS?
Compatible alternatives and drop-in replacements for SN74HC165NS:
Parallel In Serial Out, HC/UH Series, 8-Bit, Right Direction, Complementary Output, CMOS, PDSO16
Parallel In Serial Out, HC/UH Series, 8-Bit, Right Direction, Complementary Output, CMOS, PDSO16
Frequently Asked Questions
Which designs are a good fit for SN74HC165NS from Texas Instruments?
SN74HC165NS fits embedded electronics, industrial controls, instrumentation, and production repair builds that need 165NS. Engineers should also check 8-bit and the manufacturer datasheet before releasing the final PCB, module, or power tree.
How should engineers review assembly risk for SN74HC165NS?
Use the listed Small Outline Packages information together with 8-bit when checking PCB footprint, thermal clearance, solder process, and second-source constraints for at least 1 approved production build.
What should procurement confirm before ordering SN74HC165NS?
Confirm lifecycle status, traceability, and lot availability, then compare the required 2 V against the approved BOM so sourcing does not substitute an incompatible part during 1 purchasing cycle.
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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.
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