4-Channel Bi-Directional Logic Level Converter (3.3V to 5V) for I2C, SPI, and TTL

Description

Bridge the communication gap between different voltage platforms seamlessly with the 4-Channel Bi-Directional Logic Level Converter. Modern microcontrollers like the ESP32, Raspberry Pi, and ARM-based boards operate safely on 3.3V logic, while many legacy sensors, displays, and modules require 5V signals. Connecting them directly risks permanently damaging your sensitive 3.3V processor pins or causing corrupted data transmissions.

This high-performance module safely steps down 5V signals to 3.3V and steps up 3.3V signals to 5V simultaneously across four independent channels. Designed with high-speed field-effect transistors (MOSFETs) and integrated pull-up resistors, it guarantees clean, reliable data edges for timing-sensitive protocols like I2C, SPI, and standard UART TTL serial communications without degrading signal integrity.

⚙️ Key Features

• True Bi-Directional Shifting: Dynamically shifts data in both directions automatically on all 4 channels without needing a direction control pin.
• Protocol Optimized: Perfectly suited for open-drain configurations like I2C, as well as push-pull buses like SPI and high-speed serial TTL.
• Discrete MOSFET Design: Utilizes high-efficiency N-channel MOSFETs on each channel to ensure rapid state switching and minimize transmission delays.
• Onboard Pull-Up Resistors: Equipped with 10kΩ pull-up resistors on both the high and low-voltage lines, saving precious circuit space and component costs.
• Breadboard Compatible: Compact form factor with a standard 0.1″ (2.54mm) pitch layout allows for easy soldering of headers for fast prototyping on standard breadboards.

🎯 Suitable For / Applications

• Microcontroller Interfacing: Connecting 3.3V development boards (ESP32, NodeMCU, Raspberry Pi Pico) to 5V modules (Arduino shields, 5V sensors).
• Display Integration: Driving 5V character LCDs, OLEDs, and matrix displays from low-voltage master controllers.
• Bus Level Translation: Safely stepping up or stepping down multi-device I2C and SPI communication chains.
• Sensor Level Shifting: Integrating older 5V industrial or automotive sensors into modern low-power IoT logging systems.

📐 Technical Specifications

📦 Package Includes

• 1x 4-Channel Bi-Directional Logic Level Converter Module
• 2x 6-Pin Breakaway Straight Headers (Standard 2.54mm pitch)

Important Purchase & Setup Instructions

• Account Creation: Before purchasing this product, make sure to create an account on this website.
• Payment Process: After completing your purchase, do not press the back button. The payment system will automatically redirect you to the order page. If you face any payment-related issues, inform us at [email protected].

Shipping Information

• Delivery Area: This product is exclusively available for delivery Pan India.
• International Shipping: Not deliverable outside of India.
• Shipping Time: Customers need to give at least 1 days for preparing the shipment after purchase.

Terms & Conditions (Please Read Carefully)

• Cancellations: After the item has been shipped, no cancellations are possible.
• Returns: Once the product is delivered, no returns are accepted.
• Warranty Policy: This product carries no standard warranty.
• 3-Day Replacement Policy: If the product is not working upon arrival, you must inform us within 3 days of delivery by emailing [email protected]. Make sure to record a full unboxing video with no edits and no cuts. If any editing is found, the return procedure will immediately terminate. We will refund the faulty components only after a thorough technical checkup confirms the defect.
• Post-3 Days: After the initial 3-day period, no complaints, refunds, or service requests will be entertained.