74HC165 The 74HC165 is a Parallel In Serial Out shift register from STMicroelectronics. It features 8 input pins and 1 serial output pin, designed to expand microcontroller input capabilities.
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74HC165

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The 74HC165 is a Parallel In Serial Out shift register from STMicroelectronics. It features 8 input pins and 1 serial output pin, designed to expand microcontroller input capabilities.
✓ Total Stock: 1,550 pcs
$ Price Range: $0.64

74HC165 Available from 1 distributor

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74HC165 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Industrial Grade

74HC165 Description

Short technical summary and product information.

The 74HC165 is a versatile Parallel In Serial Out (PISO) shift register manufactured by STMicroelectronics. This component is designed to significantly increase the number of input pins available for microcontrollers, allowing for the connection of multiple sensors or digital inputs through a single serial output.

 

With 8 parallel input pins (A-H), a serial data output (SER), a clock input (CLK), and a clock enable input (CLK INH), the 74HC165 facilitates efficient data acquisition. It can be cascaded with other 74HC165 devices to further expand the input capacity, enabling control of up to 24 digital sensors with a single Arduino pin when three shift registers are connected in parallel.

 

This shift register is compatible with various microcontrollers, including Arduino, PIC, and Atmel devices. Its primary application is in systems requiring a large number of digital inputs to be read serially, such as in automation, data logging, and embedded systems where pin count is a constraint.

74HC165 Quick Information

Product Type: Shift Register
Series: 74HC
Canonical Name: 74HC165 Shift Register
Subcategory: Shift Registers

74HC165 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

74HC165 Estimated Pricing

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1+ $0.64 $0.64

Estimated market price range - modelled values for guidance only, not live distributor offers.

74HC165 Features

  • Parallel In Serial Out shift register.
  • Features 8 parallel input pins.
  • Provides 1 serial data output.
  • Increases microcontroller input pin count.
  • Cascadable for expanded input capability.

74HC165 Applications

  • Expand microcontroller input pins.
  • Interface multiple digital sensors.
  • Used in embedded systems.
  • Suitable for data acquisition.

74HC165 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the 74HC165 shift register?

The 74HC165 is a Parallel In Serial Out shift register that increases the input pins of a microcontroller.

How many input pins does the 74HC165 have?

The 74HC165 has 8 input pins.

Can the 74HC165 be used to increase input pins?

Yes, the 74HC165 can be interfaced with microcontrollers to increase input pins, and multiple units can be connected in parallel to further expand input capacity.

What is the RoHS status of the 74HC165?

The RoHS status is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for the 74HC165?

The Moisture Sensitivity Level is 1 Unlimited.

What is the REACH status for the 74HC165?

The REACH status is REACH Unaffected.

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