{"product_id":"4-channel-bidirectional-logic-level-converter-board","title":"SparkFun 4-Channel Logic Level Converter - Bi-Directional with Built-In 5V Boost - PRT-14765 (D9)","description":"\u003ch1\u003eSingle Supply Logic Level Converter Breakout Board\u003c\/h1\u003e\n\u003ch2\u003e4 Channel Bidirectional Logic Level Converter\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003esingle-supply logic level converter\u003c\/strong\u003e provides four channels of automatic, bidirectional voltage translation for connecting digital devices that operate at different logic voltages. Built around the TXB0104 4-bit voltage-level translator, the board shifts signals between an adjustable low-voltage side and a regulated 5V high-voltage side without requiring a direction-control pin.\u003c\/p\u003e\n\u003cp\u003eThe board accepts a single 3.0V to 5.5V input and generates the voltage rails required for level translation. Its low-side reference defaults to 3.3V and can be changed to 2.5V or 1.8V by replacing a resistor. This makes it a versatile \u003cstrong\u003e3.3V to 5V logic level converter\u003c\/strong\u003e for microcontrollers, sensors, embedded systems, and digital prototyping.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy This Is Especially Useful with ESP32\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eESP32 boards use 3.3V logic, but many sensors, modules, displays and legacy digital devices still use 5V logic. A standard level shifter can translate the signals, but it usually still requires a separate 5V rail. This board solves both problems at once.\u003c\/p\u003e\n\u003cp\u003eWith a single 3.3V supply, it can generate a regulated 5V output and translate up to four digital signals between the ESP32's 3.3V logic and 5V logic. That makes it especially useful when your ESP32 project needs to communicate with and power a compatible 5V peripheral without adding a separate boost converter and separate logic level shifter.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/ESP32_Boost_Module.png?v=1790709981\" alt=\"\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/p\u003e\n\u003cp\u003eFor ESP32 projects using SPI, UART, GPIO or other push-pull digital signals, this can simplify the wiring, reduce the number of modules in the project and make mixed-voltage prototyping much cleaner.\u003c\/p\u003e\n\u003ch2\u003eAutomatic Bidirectional Voltage Level Shifting\u003c\/h2\u003e\n\u003cp\u003eFour bidirectional channels connect A1 through A4 on the low-voltage side to B1 through B4 on the 5V side. Automatic direction sensing allows signals to travel in either direction without a dedicated direction pin, simplifying wiring and reducing the number of microcontroller pins needed.\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003e4 channel logic level converter\u003c\/strong\u003e is designed for push-pull digital signals and supports data rates up to 100 Mbps, depending on the selected low-side VCCA voltage and operating conditions. It is well suited for \u003cstrong\u003eSPI level shifting\u003c\/strong\u003e, \u003cstrong\u003eUART level shifting\u003c\/strong\u003e, GPIO signals, and other high-speed digital interfaces.\u003c\/p\u003e\n\u003ch2\u003eLogic Level Converter With 5V Boost Output\u003c\/h2\u003e\n\u003cp\u003eAn onboard boost converter generates a regulated 5V high-side supply from the single VIN input. The 5V output can provide up to 600 mA under suitable input and operating conditions, allowing the board to power a compatible sensor, peripheral, or second circuit board from a 3.3V system. Available output current depends on factors including input voltage, source capability, load, and conversion efficiency.\u003c\/p\u003e\n\u003cp\u003eThis integrated power capability makes the board more than a standard \u003cstrong\u003ebidirectional voltage level shifter\u003c\/strong\u003e. It can provide both signal translation and a regulated 5V power rail for supported project configurations.\u003c\/p\u003e\n\u003ch2\u003eMicrocontroller Logic Level Converter Applications\u003c\/h2\u003e\n\u003cp\u003eUse this \u003cstrong\u003elogic level converter breakout board\u003c\/strong\u003e to interface 5V microcontrollers with 3.3V sensors and modules. It is also useful for ESP32, ESP8266, Arduino, and Raspberry Pi projects that require compatible voltage levels between push-pull digital devices.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTranslate four digital channels between 3.3V and 5V\u003c\/li\u003e\n\u003cli\u003eConfigure the low-voltage side for 2.5V or 1.8V logic\u003c\/li\u003e\n\u003cli\u003eLevel shift SPI, UART, GPIO, and other push-pull signals\u003c\/li\u003e\n\u003cli\u003eConnect 5V microcontrollers to lower-voltage sensors\u003c\/li\u003e\n\u003cli\u003eGenerate regulated 5V power from a 3.0V to 5.5V input\u003c\/li\u003e\n\u003cli\u003ePower a compatible sensor or secondary board from the 5V output\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eImportant Signal Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe TXB0104 uses automatic direction-sensing circuitry intended for push-pull digital signals. This board is \u003cstrong\u003enot intended for Qwiic or I2C open-drain buses\u003c\/strong\u003e. For I2C, Qwiic, or other open-drain interfaces, use a level converter specifically designed for open-drain signaling and external pull-up resistors.\u003c\/p\u003e\n\u003ch2\u003eLogic Level Converter Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTranslator\u003c\/th\u003e\n\u003ctd\u003eTXB0104 4-bit bidirectional voltage-level translator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003ePRT-14765\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eInput Voltage\u003c\/th\u003e\n\u003ctd\u003e3.0V to 5.5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHigh-Side Voltage\u003c\/th\u003e\n\u003ctd\u003eRegulated 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDefault Low-Side Voltage\u003c\/th\u003e\n\u003ctd\u003e3.3V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOptional Low-Side Voltages\u003c\/th\u003e\n\u003ctd\u003e2.5V or 1.8V through resistor replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eChannels\u003c\/th\u003e\n\u003ctd\u003e4 bidirectional channels, A1-A4 to B1-B4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDirection Control\u003c\/th\u003e\n\u003ctd\u003eAutomatic direction sensing, no direction pin required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaximum Data Rate\u003c\/th\u003e\n\u003ctd\u003eUp to 100 Mbps, depending on VCCA and operating conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e5V Output Capability\u003c\/th\u003e\n\u003ctd\u003eUp to 600 mA under suitable input and operating conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eRecommended Signal Types\u003c\/th\u003e\n\u003ctd\u003ePush-pull digital signals, including SPI, UART, and GPIO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOpen-Drain Bus Compatibility\u003c\/th\u003e\n\u003ctd\u003eNot intended for Qwiic or I2C open-drain buses\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBoard Dimensions\u003c\/th\u003e\n\u003ctd\u003e28.5 x 26 mm (1.12 x 1.02 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHeaders\u003c\/th\u003e\n\u003ctd\u003eNot included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003cbr\u003e\u003c\/th\u003e\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompact High-Speed Voltage Level Translator\u003c\/h2\u003e\n\u003cp\u003eMeasuring only 28.5 x 26 mm (1.12 x 1.02 in), this compact \u003cstrong\u003ehigh-speed logic level converter\u003c\/strong\u003e is easy to integrate into prototypes and embedded electronics projects. Headers are not included, allowing the board to be configured with straight headers, right-angle headers, or direct wire connections to suit the application.\u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":48465015472265,"sku":"VUPN27","price":28.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn27_4_channel_logic_level_converter_board_C.jpg?v=1790708155","url":"https:\/\/vetco.net\/products\/4-channel-bidirectional-logic-level-converter-board","provider":"Vetco Electronics","version":"1.0","type":"link"}