{"product_id":"hw-178-74hc4067-16-channel-multiplexer-module","title":"HW-178 74HC4067 16-Channel Analogue\/Digital Multiplexer Module","description":"\u003cdiv class=\"nznpd\"\u003e\n\u003cdiv class=\"nznpd__lead\"\u003e\n\u003cp class=\"nznpd__intro\"\u003eThe HW-178 74HC4067 module routes one of 16 analogue or digital channels through a shared SIG connection. Four binary select inputs choose the active channel, making it a practical way to expand Arduino, ESP32 and Raspberry Pi projects without using 16 separate signal pins.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003csection class=\"nznpd__block\"\u003e\n\u003ch3 class=\"nznpd__h\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"nznpd__specs\"\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eModel\u003c\/span\u003e\u003cstrong\u003eHW-178\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eChannels\u003c\/span\u003e\u003cstrong\u003e16, C0 to C15\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eSupply\u003c\/span\u003e\u003cstrong\u003e2V to 6V DC\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eSignal range\u003c\/span\u003e\u003cstrong\u003eGND to VCC\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eControl\u003c\/span\u003e\u003cstrong\u003eS0 to S3 binary select\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eEnable\u003c\/span\u003e\u003cstrong\u003eEN high disconnects all\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eCommon pin\u003c\/span\u003e\u003cstrong\u003eSIG, bidirectional\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003ePCB size\u003c\/span\u003e\u003cstrong\u003e40.5 x 18.0mm\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eHeaders\u003c\/span\u003e\u003cstrong\u003eNot included\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"nznpd__block\"\u003e\n\u003ch3 class=\"nznpd__h\"\u003eDatasheets\u003c\/h3\u003e\n\u003cdiv class=\"nznpd__ds\"\u003e\n\u003ca class=\"nznpd__dsbar\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0664\/6127\/0112\/files\/HW-178-74HC4067-Datasheet-v1.pdf\" target=\"_blank\" rel=\"noopener\" aria-label=\"Download the HW-178 74HC4067 module datasheet (PDF)\"\u003e\n\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\n\u003cspan\u003eFull technical datasheet\u003c\/span\u003e\n\u003cspan class=\"nznpd__dsmeta\"\u003ePDF\u003csvg width=\"17\" height=\"17\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4\"\u003e\u003c\/path\u003e\u003cpolyline points=\"7 10 12 15 17 10\"\u003e\u003c\/polyline\u003e\u003cline x1=\"12\" y1=\"15\" x2=\"12\" y2=\"3\"\u003e\u003c\/line\u003e\u003c\/svg\u003e\u003c\/span\u003e\n\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"nznpd__block\"\u003e\n\u003ch3 class=\"nznpd__h\"\u003eWhat's in the box\u003c\/h3\u003e\n\u003cdiv class=\"nznpd__included\"\u003e\n\u003cdiv class=\"nznpd__qty\"\u003e1×\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eHW-178 74HC4067 module\u003c\/strong\u003e\u003cp\u003eOne assembled blue PCB with unsoldered through-holes. Pin headers are not included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"nznpd__block\"\u003e\n\u003ch3 class=\"nznpd__h\"\u003eGreat for\u003c\/h3\u003e\n\u003cdiv class=\"nznpd__uses\"\u003e\n\u003cdiv class=\"nznpd__use\"\u003eReading several analogue sensors with one ADC input\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eExpanding data acquisition and test projects\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eRouting compatible digital or serial signals\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eArduino, ESP32 and Raspberry Pi prototyping\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"nznpd__block\"\u003e\n\u003cdiv class=\"nznpd__qs\"\u003e\n\u003ch3\u003eWiring \u0026amp; getting started\u003c\/h3\u003e\n\u003col class=\"nznpd__steps\"\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eConnect power\u003c\/strong\u003e\u003cp\u003eConnect VCC to a 2V to 6V supply and connect GND to the controller ground.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eConnect signals\u003c\/strong\u003e\u003cp\u003eConnect the shared signal to SIG, then connect each source or destination to C0 through C15.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eSelect a channel\u003c\/strong\u003e\u003cp\u003eDrive S0 to S3 with the channel's binary value. S0 is the least-significant bit, so 0000 selects C0 and 1111 selects C15.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eSet enable\u003c\/strong\u003e\u003cp\u003eHold EN low to enable the selected channel. Drive EN high to disconnect every channel.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cp class=\"nznpd__note\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This module is a signal switch, not a voltage level shifter. Keep every switched signal between GND and the module VCC.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"NZN Electronics","offers":[{"title":"Default Title","offer_id":43150443151456,"sku":"MOD-HW178-74HC4067","price":2.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/6127\/0112\/files\/01-hw-178-74hc4067-hero.png?v=1789443435","url":"https:\/\/www.nznelectronics.co.nz\/products\/hw-178-74hc4067-16-channel-multiplexer-module","provider":"NZN Electronics","version":"1.0","type":"link"}