---
product_id: 504405420
title: "HiLetgo Si5351A I2C 25MHz I2C High Frequency Signal Generator Breakout Board Square Wave Frequency Generator 8KHz to 160MHz 3-5VDC for Arduino"
brand: "hiletgo"
price: "€ 0.29"
currency: EUR
in_stock: false
url: https://www.desertcart.it/products/504405420-hiletgo-si5351a-i2c-25mhz-i2c-high-frequency-signal-generator-breakout
store_origin: IT
region: Italy
---

# 3-5VDC power with level shifting I2C configurable multi-output control 8KHz-160MHz ultra-wide freq range HiLetgo Si5351A I2C 25MHz I2C High Frequency Signal Generator Breakout Board Square Wave Frequency Generator 8KHz to 160MHz 3-5VDC for Arduino

**Brand:** hiletgo
**Price:** € 0.29
**Availability:** ❌ Out of Stock

## Summary

> ⚙️ Master your frequency game with precision and power!

## Quick Answers

- **What is this?** HiLetgo Si5351A I2C 25MHz I2C High Frequency Signal Generator Breakout Board Square Wave Frequency Generator 8KHz to 160MHz 3-5VDC for Arduino by hiletgo
- **How much does it cost?** € 0.29 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/504405420-hiletgo-si5351a-i2c-25mhz-i2c-high-frequency-signal-generator-breakout)

## Best For

- hiletgo enthusiasts

## Why This Product

- Trusted hiletgo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Broad Frequency Spectrum:** From sub-8KHz to 160MHz, cover every signal need without swapping components.
- • **Triple Independent Outputs:** Simultaneously run three distinct frequencies—perfect for complex multi-signal projects.
- • **Plug & Play Breadboard Friendly:** Easy header pins and optional SMA connector for seamless prototyping or RF applications.
- • **Cross-Platform I2C Compatibility:** Works effortlessly with Arduino and any I2C-enabled microcontroller—future-proof your builds.
- • **Precision 25MHz Crystal Reference:** Unlock ultra-stable frequency generation for flawless signal integrity.

## Overview

The HiLetgo Si5351A breakout board is a versatile, I2C-controlled clock generator featuring a precision 25MHz crystal and internal PLLs. It delivers three independent outputs across a massive frequency range (8KHz to 160MHz) powered by 3-5V with built-in level shifting, making it ideal for Arduino and other microcontroller projects requiring precise, customizable clock signals.

## Description

Never hunt around for another crystal again, with the Si5351A clock generator breakout from Adafruit! This chip has a precision 25MHz crystal reference and internal PLL and dividers so it can generate just about any frequency, from <8KHz up to 150+ MHz. The Si5351A clock generator is an I2C controller clock generator. It uses the onboard precision clock to drive multiple PLL's and clock dividers using I2C instructions. By setting up the PLL and dividers you can create precise and arbitrary frequencies. There are three independent outputs, and each one can have a different frequency. Outputs are 3Vpp, either through a breadboard-friendly header or for RF work, an optional SMA connector. We put this handy little chip onto it's own breakout board PCB, with a 3.3 V LDO regulator so it can be powered from 3-5 VDC. We also put level shifting circuitry on the I2C lines so you can use this chip safely with 3 V or 5 V logic. Best of all, we even have a great tutorial and library to get you started! Our code is designed for use with the Arduino microcontroller and IDE but is easily ported to your favourite platform with I2C support. Package includes: 1 x SSi5351A I2C Generator Clock Breakout Board This chip has a precision 25MHz crystal reference and internal PLL and dividers.

## Features

- This chip has a precision 25MHz crystal reference and internal PLL and dividers.
- It can generate just about any frequency, from <8KHz up to 150+ MHz.
- The Si5351 is an I2C configurable clock generator that is ideally suited for replacing crystals, crystal oscillators, VCXOs, phase-locked loops (PLLs), and fanout buffers in cost-sensitive applications.
- It uses the onboard precision clock to drive multiple PLL's and clock dividers using I2C instructions.
- Outputs are 3Vpp, either through a breadboard-friendly header or for RF work, an optional SMA connector.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | HiLetgo |
| Package Dimensions | 9.4 x 5.8 x 0.5 cm; 7 g |
| Item model number | 3-01-1550 |
| Manufacturer | HiLetgo |
| Series | Si5351A |
| Processor Type | Pentium |
| Processor Socket | Socket 7 |
| Memory Technology | DDR3 |
| Memory Clock Speed | 160 MHz |
| Graphics Card Interface | PCI-Express x16 |
| Number of HDMI Ports | 1 |
| Are Batteries Included | No |
| Item Weight | 7 g |
| Guaranteed software updates until | unknown |

## Product Details

- **Brand:** HiLetgo
- **CPU socket:** Socket 7
- **Compatible devices:** [Many]
- **RAM memory technology:** DDR3
- **Compatible processors:** DIP package processors
- **Memory clock speed:** 160 MHz
- **Platform:** Not Machine Specific
- **Model name:** Si5351A
- **CPU model:** Pentium
- **Memory storage capacity:** 8 GB

## Images

![HiLetgo Si5351A I2C 25MHz I2C High Frequency Signal Generator Breakout Board Square Wave Frequency Generator 8KHz to 160MHz 3-5VDC for Arduino - Image 1](https://m.media-amazon.com/images/I/61EAazcbmPL.jpg)
![HiLetgo Si5351A I2C 25MHz I2C High Frequency Signal Generator Breakout Board Square Wave Frequency Generator 8KHz to 160MHz 3-5VDC for Arduino - Image 2](https://m.media-amazon.com/images/I/51vae9qQ5DL.jpg)
![HiLetgo Si5351A I2C 25MHz I2C High Frequency Signal Generator Breakout Board Square Wave Frequency Generator 8KHz to 160MHz 3-5VDC for Arduino - Image 3](https://m.media-amazon.com/images/I/61BAgL+GxlL.jpg)
![HiLetgo Si5351A I2C 25MHz I2C High Frequency Signal Generator Breakout Board Square Wave Frequency Generator 8KHz to 160MHz 3-5VDC for Arduino - Image 4](https://m.media-amazon.com/images/I/61nAHhECsoL.jpg)
![HiLetgo Si5351A I2C 25MHz I2C High Frequency Signal Generator Breakout Board Square Wave Frequency Generator 8KHz to 160MHz 3-5VDC for Arduino - Image 5](https://m.media-amazon.com/images/I/613ANtfKo4L.jpg)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.it/products/504405420-hiletgo-si5351a-i2c-25mhz-i2c-high-frequency-signal-generator-breakout](https://www.desertcart.it/products/504405420-hiletgo-si5351a-i2c-25mhz-i2c-high-frequency-signal-generator-breakout)

---

*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-01-23*