SN74HC165DRIn StockTexas Instruments
SN74HC165DR is TI's 8-bit parallel-load shift register with complementary outputs, operating from 2V to 6V. Key specs: 16-pin SOIC, 24 mA output drive, 85 MHz max shift clock at 4.5V. From $0.162/unit, in-stock, ships globally from 1 piece.
- Manufacturer
- Texas Instruments
- Package
- SOIC-16
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SN74HC165DR Datasheet PDF
- Category
- logic-shift-registers
- Price
- From $0.1080(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit parallel-load / serial-out shift register
- Wide supply range: 2 V to 6 V
- High-speed CMOS: 24 mA output drive, 85 MHz at 4.5 V
- Complementary Q and Q̄ outputs
- SOIC-16 package, tape-and-reel (2500 pcs)
- Operating temperature: -40°C to +85°C
- RoHS compliant, Pb-free
Applications
SN74HC165DR is widely used in microcontroller I/O expansion—reading multiple push-buttons or DIP-switch states over a single SPI bus. It is also common in industrial PLCs and sensor interfaces where parallel-to-serial conversion reduces wiring harness complexity.
Specifications
| Supply Voltage | 2 V – 6 V |
| Max Clock Frequency | 85 MHz (at 4.5 V) |
| Output Drive Current | 24 mA |
| Number of Bits | 8 |
| Package | SOIC-16 |
| Pin Count | 16 |
| Operating Temperature | -40°C to +85°C |
| Logic Family | HC (High-Speed CMOS) |
| Interface | SPI-compatible (parallel-in, serial-out) |
| RoHS | Compliant |
| Package | SOIC-16 |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the key specifications of the SN74HC165DR?
The SN74HC165DR is an 8-bit parallel-load shift register operating from 2 V to 6 V. It features a maximum shift-clock frequency of 85 MHz at 4.5 V, 24 mA output drive strength, complementary Q/Q̄ outputs, and a 16-pin SOIC package. Operating temperature range is -40°C to +85°C.
What is the SN74HC165DR typically used for?
It is commonly used to expand the digital inputs of microcontrollers via SPI: connecting 8 push-buttons, DIP switches, or sensors and reading their states with just three MCU pins (CLK, SH/LD, DATA). It is also used in industrial control panels, keyboard matrices, and test-equipment front-ends.
What package does the SN74HC165DR come in and what is the pin count?
The SN74HC165DR comes in a 16-pin SOIC (Small Outline Integrated Circuit) package with 1.27 mm (50 mil) lead pitch. The 'D' suffix denotes the SOIC-16 package and 'R' denotes tape-and-reel packaging with 2500 pieces per reel.
What are good substitutes or alternatives to the SN74HC165DR?
Pin-compatible alternatives include the SN74HC165N (DIP-16 through-hole version), 74HC165D from NXP, MM74HC165N from ON Semiconductor, and the SN74HCT165DR (TTL-compatible input thresholds for mixed 3.3 V/5 V systems). All are functionally identical 8-bit parallel-in serial-out shift registers.
Is the SN74HC165DR RoHS compliant?
Yes. The SN74HC165DR is fully RoHS compliant and lead-free (Pb-free). The 'R' suffix confirms it ships on tape-and-reel with green/halogen-free packaging per TI's standard eco-design requirements.
Related Guides
Is Buying Electronic Components from Chinese Suppliers Safe? A 2025–2026 Buyer's Guide
A 2025–2026 buyer's guide to sourcing electronic components from Chinese suppliers: real risks, authorized vs. broker channels, and a 5-point safety framework.
Apr 22, 2026
BOM Optimization: How to Reduce Electronic Component Costs Without Sacrificing Quality
Practical strategies for reducing BOM costs by 15-30% through smart component selection, supplier diversification, and procurement optimization.
Apr 9, 2026
Top 10 Microcontrollers in 2025: A Comprehensive Comparison Guide
Detailed comparison of the most popular MCUs in 2025 — STM32, ESP32, RP2040, nRF52, and more. Specs, pricing, ecosystem, and use-case recommendations.
Apr 9, 2026
How to Read an IC Datasheet: A Practical Guide for Engineers
Master the art of reading IC datasheets. Learn what every section means, which specs matter most, and how to extract the information you need for your design.
Apr 9, 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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.1620 | $0.16 |
| 32+ | $0.1350 | $4.32 |
| 75+ | $0.1080 | $8.10 |
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.”