74HC164 (8-bit Serial-in/parallel-out Shift Register)

Overview

The 74HC164 is an 8-bit serial-in/parallel-out shift register, a fundamental building block in digital electronics. It converts serial data into parallel output, enabling efficient data manipulation and expansion of microcontroller I/O pins. With its high-speed CMOS technology, it offers low power consumption and wide operating voltage range, making it ideal for various digital applications.

Key Features

• 8-bit serial-in, parallel-out shift register
• Wide operating voltage range: 2V to 6V
• High-speed CMOS technology (HC type)
• Push-pull outputs for direct drive capability
• Standard 14-pin DIP package, easy breadboard compatibility
• Low power consumption
• Direct interface with TTL logic levels

Technical Specifications

• Function: Serial to Parallel
• Number of Bits: 8
• Output Type: Push-Pull
• Supply Voltage: 2V ~ 6V
• Package / Case: 14-DIP (0.300", 7.62mm)
• Logic Family: 74HC
• Operating Temperature Range: Typically -40°C to +125°C (check datasheet)

Applications & Use Cases

• Expanding output pins of microcontrollers (e.g., Arduino, ESP32, Raspberry Pi)
• Driving multiple LEDs or 7-segment displays
• Serial-to-parallel data conversion in communication interfaces
• Control multiple devices with minimal I/O pins
• Building shift register-based projects like LED matrices, digital clocks, and data logging systems

What's Included

• 1x 74HC164 8-bit Shift Register IC (DIP-14 package)

Compatibility

• Works with 5V and 3.3V logic systems (within voltage range)
• Compatible with Arduino, Raspberry Pi, PIC, AVR, and other microcontrollers
• Can be cascaded to create longer shift registers
• Standard DIP-14 footprint suits breadboards and perfboards

MOKWN Recommendation

Ideal for makers, students, and professionals looking to expand digital outputs efficiently. Whether you're building an LED display or a complex data acquisition system, the 74HC164 offers a reliable and cost-effective solution. Stock up and keep your projects moving!