{"product_id":"bi-directional-logic-level-converter-4-8-way-5v-3-3v-uart-i2c-spi-anti-reverse","title":"Bi-Directional Logic Level Converter — 4\/8-Way, 5V ↔3.3V, UART\/I²C\/SPI, Anti-Reverse","description":"\u003ch2\u003eBi-Directional Logic Level Converter — 4\/8-Way, 5V ↔3.3V, UART \/ I²C \/ SPI, Anti-Reverse\u003c\/h2\u003e\u003cp\u003eThis \u003cstrong\u003eMOSFET-based bidirectional logic level converter\u003c\/strong\u003e safely translates signals between 5V and 3.3V logic systems in both directions simultaneously. Available in 4-channel and 8-channel versions, it supports UART, I²C, SPI, and 1-Wire protocols, making it the essential interface module when connecting 5V Arduino boards to 3.3V sensors, displays, and modules.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e4-way or 8-way (variant dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh-Side Voltage (HV)\u003c\/td\u003e\n\u003ctd\u003e5V (or up to 10V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow-Side Voltage (LV)\u003c\/td\u003e\n\u003ctd\u003e3.3V (or 1.8V–3.3V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTranslation Type\u003c\/td\u003e\n\u003ctd\u003eBidirectional (MOSFET-based)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocol Support\u003c\/td\u003e\n\u003ctd\u003eUART, I²C, SPI, 1-Wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOnboard LDO\u003c\/td\u003e\n\u003ctd\u003e3.3V LDO regulator included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnti-Reverse Protection\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWiring Guide\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHV\u003c\/strong\u003e → 5V (high-voltage side power)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLV\u003c\/strong\u003e → 3.3V (low-voltage side power)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND\u003c\/strong\u003e → Common ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHVx\u003c\/strong\u003e → 5V device signal pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLVx\u003c\/strong\u003e → 3.3V device signal pin\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Choose This Level Converter?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eMOSFET-based bidirectional\u003c\/strong\u003e — works with I²C open-drain and push-pull signals\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e4-way and 8-way options\u003c\/strong\u003e — choose based on number of signal lines needed\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eOnboard 3.3V LDO\u003c\/strong\u003e — powers 3.3V side directly from 5V supply\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eAnti-reverse protection\u003c\/strong\u003e — prevents damage from accidental reverse connection\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eI²C compatible\u003c\/strong\u003e — open-drain MOSFET design works with I²C pull-up resistors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eArduino 5V to ESP8266\/ESP32 3.3V UART bridging\u003c\/li\u003e\n\u003cli\u003e5V Arduino to 3.3V I²C sensor (BME280, MPU6050)\u003c\/li\u003e\n\u003cli\u003e5V SPI to 3.3V SD card or display module\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi 3.3V to 5V Arduino GPIO\u003c\/li\u003e\n\u003cli\u003e1-Wire bus level shifting (DS18B20 in mixed-voltage systems)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 × Bi-Directional Logic Level Converter (4-way or 8-way, as selected)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"TXS0102","offer_id":46991433203947,"sku":"14:351074#TXS0102","price":6.8,"currency_code":"USD","in_stock":true},{"title":"TXS0108E","offer_id":46991433236715,"sku":"14:201659813#TXS0108E","price":5.44,"currency_code":"USD","in_stock":true},{"title":"4 Way","offer_id":46991433269483,"sku":"14:350852#4 Way","price":4.44,"currency_code":"USD","in_stock":true},{"title":"2 Way","offer_id":46991433302251,"sku":"14:1202#2 Way","price":4.32,"currency_code":"USD","in_stock":true},{"title":"WCMCU-401","offer_id":46991433335019,"sku":"14:4044226#WCMCU-401","price":7.64,"currency_code":"USD","in_stock":true},{"title":"8 way Red","offer_id":46991433367787,"sku":"14:29#8 way Red","price":5.44,"currency_code":"USD","in_stock":true},{"title":"8 way Blue","offer_id":46991433400555,"sku":"14:10#8 way Blue","price":6.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/2-channel-4-8-way-bidirectional-logic-level-converter-5v-3-3v.webp?v=1761882070","url":"https:\/\/keszoox.com\/products\/bi-directional-logic-level-converter-4-8-way-5v-3-3v-uart-i2c-spi-anti-reverse","provider":"Keszoox","version":"1.0","type":"link"}