{"product_id":"4-channel-i2c-or-spi-3-3v-5v-bi-directional-logic-level-converter","title":"4 Channel (I2C or SPI) 3.3V-5V Bi-Directional Logic Level Converter","description":"\u003cmeta name=\"description\" content=\"Buy 4 Channel I2C or SPI 33V5V BiDirectional Logic Level Convert online in India at best price from The Tech Depot, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n```html\n\u003ch1\u003e4 Channel (I2C or SPI) 3.3V-5V Bi-Directional Logic Level Converter\u003c\/h1\u003e\n\n\u003cp\u003eSeamlessly bridge 3.3V and 5V logic devices with this compact 4-channel bi-directional logic level converter from The Tech Depot, Bengaluru. Designed for I2C, SPI, UART, and general GPIO level shifting, this module ensures safe, reliable communication between microcontrollers, sensors, and peripherals operating at different voltage levels. Fast shipping across India with 7-day warranty on manufacturing defects and dedicated technical support.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e4 Bi-Directional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow-Side Voltage (LV)\u003c\/td\u003e\n\u003ctd\u003e1.8V - 3.3V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh-Side Voltage (HV)\u003c\/td\u003e\n\u003ctd\u003e3.3V - 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Protocols\u003c\/td\u003e\n\u003ctd\u003eI2C, SPI, UART, GPIO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDirection\u003c\/td\u003e\n\u003ctd\u003eBi-Directional (both ways simultaneously)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Method\u003c\/td\u003e\n\u003ctd\u003eBSS138 N-Channel MOSFET with 10kOhm pull-up resistors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Data Rate\u003c\/td\u003e\n\u003ctd\u003e~2 MHz (suitable for standard \u0026amp; fast-mode I2C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePinout\u003c\/td\u003e\n\u003ctd\u003eLV, LV1-LV4, GND | HV, HV1-HV4, GND\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoard Dimensions\u003c\/td\u003e\n\u003ctd\u003e~15mm x 13mm (compact breakout)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader Pins\u003c\/td\u003e\n\u003ctd\u003eIncluded (may require soldering)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 degreesC to +85 degreesC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eLogic Level Shifter \/ Voltage Translator Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7-day warranty on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003eEmail \u0026amp; WhatsApp 24\/7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue Bi-Directional Shifting:\u003c\/strong\u003e Each of the 4 channels converts signals in both directions simultaneously - ideal for I2C's open-drain SDA\/SCL lines where master and slave both drive the bus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafe Voltage Translation:\u003c\/strong\u003e Protects sensitive 3.3V devices (Raspberry Pi, ESP32, STM32) from 5V logic damage when interfacing with Arduino Uno, legacy sensors, or 5V displays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBSS138 MOSFET-Based Design:\u003c\/strong\u003e Uses proven N-channel MOSFET topology with on-board 10kOhm pull-up resistors for clean, reliable signal transitions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Protocol Compatible:\u003c\/strong\u003e Works with I2C (2 channels for SDA + SCL), SPI (4 channels for MOSI, MISO, SCK, CS), UART (TX + RX), or any combination of digital signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreadboard Friendly:\u003c\/strong\u003e Compact dual-inline form factor with clearly labeled pins drops directly into standard breadboards or perfboards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e Low side supports 1.8V to 3.3V; high side supports 3.3V to 5V - covering virtually all common microcontroller voltage levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo External Components Needed:\u003c\/strong\u003e Pull-up resistors are built in; simply connect your voltage references and signal lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose This?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e100% authentic modules sourced from trusted suppliers - no counterfeit or substandard components\u003c\/li\u003e\n\u003cli\u003e1-5 day shipping, 7-8 day delivery from our Bengaluru warehouse to most Indian cities\u003c\/li\u003e\n\u003cli\u003eExpert technical support included - get help with wiring, protocol setup, and troubleshooting\u003c\/li\u003e\n\u003cli\u003eEssential building block for any mixed-voltage project - saves hours of debugging voltage incompatibility issues\u003c\/li\u003e\n\u003cli\u003eProven BSS138 design trusted by makers and engineers worldwide\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003eThe module uses BSS138 N-channel MOSFETs on each channel along with 10kOhm pull-up resistors on both sides. When neither side drives the line low, pull-ups hold both sides high at their respective voltage levels. When the low-voltage side pulls a line low, the MOSFET's gate-source voltage turns it on, pulling the high-voltage side low as well. When the high-voltage side pulls low, the MOSFET's body diode and gate characteristics pull the low-voltage side low. This elegant design requires no direction pin and works automatically in both directions - making it perfect for I2C where both master and slave communicate on the same wires.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Guide\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Pin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLV\u003c\/td\u003e\n\u003ctd\u003e3.3V supply from your low-voltage device (e.g., Raspberry Pi 3.3V pin)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHV\u003c\/td\u003e\n\u003ctd\u003e5V supply from your high-voltage device (e.g., Arduino 5V pin)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGND (both sides)\u003c\/td\u003e\n\u003ctd\u003eCommon ground - connect all device grounds together\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLV1 - LV4\u003c\/td\u003e\n\u003ctd\u003eSignal lines to\/from 3.3V device\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eProducts ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs technical support available?\u003c\/summary\u003e\n\u003cp\u003eYes, 24\/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return policy?\u003c\/summary\u003e\n\u003cp\u003e7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003ch2\u003eBuy 4 Channel (I2C or SPI) 3.3V-5V Bi-Directional Logic Level Converter Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003e4 Channel (I2C or SPI) 3.3V-5V Bi-Directional Logic Level Converter\u003c\/strong\u003e online at \u003ca href=\"https:\/\/thetechdepot.in\"\u003eThe Tech Depot\u003c\/a\u003e - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on \u003cstrong\u003e4 Channel (I2C or SPI) 3.3V-5V Bi-Directional Logic Level Converter\u003c\/strong\u003e with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.\u003c\/p\u003e\n\u003cp\u003eLooking to buy \u003cstrong\u003e4 Channel (I2C or SPI) 3.3V-5V Bi-Directional Logic Level Converter\u003c\/strong\u003e at the best price in India? The Tech Depot offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.\u003c\/p\u003e","brand":"The Tech Depot","offers":[{"title":"Default Title","offer_id":48746550427905,"sku":"TTD-17665","price":17.89,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/1577\/3185\/files\/43d8f79ecea0a15bfda2db2492f31169.jpg?v=1778107384","url":"https:\/\/techdepot.in\/products\/4-channel-i2c-or-spi-3-3v-5v-bi-directional-logic-level-converter","provider":"Tech Depot India","version":"1.0","type":"link"}