5-Pack SN74LS165ADR 74LS165 Shift Register IC SOIC-16
5-Pack SN74LS165ADR 74LS165 Shift Register IC SOIC-16
5-Pack SN74LS165ADR 74LS165 Serial Output Shift Register — SOIC-16
Get five brand-new SN74LS165ADR (74LS165) 8-bit parallel-load serial shift register integrated circuits in a compact SOIC-16 surface-mount package. These reliable TTL logic chips are a staple in digital design, prototyping, and electronics repair — ideal for expanding microcontroller inputs, daisy-chaining multiple registers, or reading parallel data serially over SPI-style interfaces.
Key Features
- Part Number: SN74LS165ADR (74LS165)
- Package: SOIC-16 (Surface-Mount)
- Function: 8-Bit Parallel-In / Serial-Out Shift Register
- Logic Family: 74LS (Low-Power Schottky TTL)
- Quantity: 5 pieces per pack
- Condition: New
- High-Concern Chemicals: None
- Made in Mainland China
Common Applications
- Microcontroller & microprocessor input expansion
- Data serialization in embedded systems
- Arduino, Raspberry Pi & hobbyist electronics projects
- Digital logic prototyping and breadboard circuits
- Industrial control and automation systems
- PCB assembly and electronics repair
Technical Overview
The SN74LS165A is an 8-bit parallel-load shift register that accepts 8 bits of parallel data and shifts them out serially, making it perfect for reducing the number of I/O lines needed from a host controller. Operating within standard 74LS supply voltage ranges (4.75V–5.25V), it offers predictable propagation delays and low-power consumption typical of the LS logic family. The SOIC-16 footprint is compatible with standard PCB pads and hand-soldering.
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Frequently Asked Questions
Q: What is the SN74LS165ADR (74LS165) shift register used for?
A: The SN74LS165ADR is an 8-bit parallel-in, serial-out (PISO) shift register. It is commonly used to expand the number of digital input pins available to a microcontroller (such as Arduino or Raspberry Pi) by reading multiple switches or sensors simultaneously and transmitting the data serially over just a few lines.
Q: How many chips are included in this listing?
A: This listing includes 5 pieces of the SN74LS165ADR integrated circuit, all new and in SOIC-16 surface-mount packages — great value for prototyping, repairs, or stocking your component inventory.
Q: Is the SOIC-16 package compatible with standard PCBs and breadboard adapters?
A: Yes. The SOIC-16 package is a widely supported surface-mount format compatible with standard PCB footprints. For breadboard use, a SOIC-to-DIP adapter is recommended. The chip can also be hand-soldered to most PCBs with standard SMD soldering tools.
Q: What is the operating voltage of the 74LS165 logic chip?
A: The 74LS (Low-Power Schottky) logic family operates at a standard supply voltage of 4.75V to 5.25V (nominally 5V), making it compatible with most TTL and 5V digital logic systems.