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74HC595N - 8-Bit Serial-to-Parallel Shift Register IC

SKU: RBGRXXY6U3
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The 74HC595N is a high-speed 8-bit Serial-in, Parallel-out (SIPO) Shift Register IC based on High-Speed CMOS technology. It is designed to expand the digital output capability of microcontrollers by converting serial data into eight parallel outputs while requiring only three control pins. This makes it an excellent solution for applications where GPIO pins are limited. The IC consists of an...
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The 74HC595N is a high-speed 8-bit Serial-in, Parallel-out (SIPO) Shift Register IC based on High-Speed CMOS technology. It is designed to expand the digital output capability of microcontrollers by converting serial data into eight parallel outputs while requiring only three control pins. This makes it an excellent solution for applications where GPIO pins are limited.

The IC consists of an 8-bit shift register, an 8-bit storage (latch) register, and tri-state output drivers, allowing all outputs to be updated simultaneously without glitches. It also features a serial output pin, enabling multiple 74HC595N ICs to be cascaded together for virtually unlimited output expansion.

Operating from 2V to 6V, the 74HC595N offers low power consumption, high-speed operation, and compatibility with both CMOS and TTL logic levels. It is widely used in LED displays, LED matrices, 7-segment displays, relay control, LCD interfacing, robotics, industrial automation, and embedded electronics projects.

Key Features

  • 8-bit Serial-in, Parallel-out (SIPO) shift register
  • Separate shift register and storage register
  • Eight latched parallel outputs
  • Tri-state output drivers
  • High-speed CMOS technology
  • Wide operating voltage range
  • Low power consumption
  • High noise immunity
  • Separate shift clock and latch clock
  • Cascadable for unlimited output expansion
  • Direct shift register clear input
  • TTL and CMOS compatible
  • Standard DIP-16 package
  • Ideal for output expansion and LED driving applications

Shipping & Returns

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Specifications

Specifications:

IC Type: Serial-to-Parallel Shift Register
Part Number: 74HC595N
Logic Family: High-Speed CMOS (HC)
Function: 8-Bit Serial-In Parallel-Out Shift Register with Storage Register
Package Type: PDIP-16 (DIP-16)
Number of Register Bits: 8
Number of Parallel Outputs: 8
Operating Voltage: 2V to 6V DC
Recommended Operating Voltage: 5V DC
Maximum Clock Frequency: Up to 25MHz (Typical at 4.5V)
Propagation Delay: Approximately 13ns (Typical)
Output Drive Current: ±6mA (Typical at 5V)
Output Type: Tri-State Push-Pull Outputs
Serial Output: Available for Cascading Multiple ICs
Shift Register Clear: Active LOW (SRCLR)
Output Enable: Active LOW (OE)
Logic Compatibility: CMOS and TTL Compatible
Operating Temperature: -40°C to +85°C
Storage Temperature: -65°C to +150°C
Mounting Type: Through-Hole
Package Dimensions: Standard DIP-16
Compatibility: Arduino, ESP32, STM32, Raspberry Pi Pico, AVR, PIC, FPGA, CPLD

Additional Resources

74HC595N.PDF

FAQ

1. What is the 74HC595N IC used for?

The 74HC595N is used to expand the number of digital output pins on a microcontroller by converting serial data into eight parallel outputs. It is commonly used for LEDs, 7-segment displays, relay boards, and LED matrix displays.

2. How many outputs does the 74HC595N provide?

The IC provides 8 parallel digital outputs, and multiple 74HC595N devices can be cascaded together to create virtually unlimited output channels.

3. Can the 74HC595N be used with Arduino and ESP32 boards?

Yes. The 74HC595N operates from 2V to 6V, making it fully compatible with Arduino, ESP32, STM32, Raspberry Pi Pico, and other 3.3V or 5V microcontrollers. It typically requires only three control pins: Data, Clock, and Latch.

4. What is the purpose of the latch (RCLK) pin?

The RCLK (Latch Clock) pin transfers the shifted serial data from the internal shift register to the output register, allowing all eight outputs to update simultaneously without flickering or glitches.

5. What is the advantage of using the 74HC595N instead of direct GPIO connections?

The 74HC595N significantly reduces the number of GPIO pins required by a microcontroller while allowing easy expansion of digital outputs. Its cascading capability makes it ideal for large LED displays, multiple relays, and other applications requiring many output lines.