{"product_id":"sn74ls641dwr2","title":"SN74LS641DWR2","description":"\u003cp\u003eThe SN74LS641DWR2 is a single-channel non-inverting transceiver from Motorola's 74LS family. It features an open-collector output capable of sinking 24mA, making it suitable for driving loads or creating wire-AND logic. Operating at a standard 5V TTL supply (4.75V to 5.25V), it ensures compatibility with legacy TTL systems. The bidirectional capability allows data transfer in both directions on a single line, controlled by direction pins. Housed in a 20-SOIC package, it is ideal for bus interfacing, level shifting to higher voltages, and industrial control applications where open-collector outputs are required.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen-Collector Outputs:\u003c\/strong\u003e Enables wire-AND logic and allows pull-up to higher voltages for level shifting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh 24mA Sink Current:\u003c\/strong\u003e Can directly drive relays, LEDs, and other loads without external transistors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBidirectional Transceiver:\u003c\/strong\u003e Saves board space by combining transmit and receive functions in one IC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 5V TTL Operation:\u003c\/strong\u003e Directly compatible with legacy TTL logic systems, simplifying upgrades.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Temperature Range (0°C to 70°C):\u003c\/strong\u003e Suitable for commercial and industrial environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBidirectional Bus Communication\u003c\/h3\u003e\u003cp\u003eAs a transceiver, the SN74LS641DWR2 allows data to flow in both directions on a single bus line, controlled by direction pins. This is essential for memory interfaces and peripheral communication.\u003c\/p\u003e\u003ch3\u003eOpen-Collector for Wire-AND Logic\u003c\/h3\u003e\u003cp\u003eThe open-collector outputs enable wire-AND connections, where multiple outputs can be tied together to create a logical AND function without additional logic gates, useful in interrupt lines and bus arbitration.\u003c\/p\u003e\u003ch3\u003eLevel Shifting to Higher Voltages\u003c\/h3\u003e\u003cp\u003eWith external pull-up resistors, the open-collector output can be pulled up to voltages higher than 5V (e.g., 12V or 24V), allowing the 5V logic to interface with higher-voltage industrial systems.\u003c\/p\u003e\u003ch3\u003eDriving Relays and Solenoids\u003c\/h3\u003e\u003cp\u003eThe open-collector output can sink up to 24mA, sufficient to drive relays, solenoids, or small motors directly, with a flyback diode for inductive load protection.\u003c\/p\u003e\u003ch3\u003eLegacy TTL System Interfacing\u003c\/h3\u003e\u003cp\u003eIn systems that still use TTL logic levels, this transceiver provides the necessary drive strength and compatibility, ensuring reliable communication with older equipment.\u003c\/p\u003e\u003ch3\u003eIndustrial Sensor Readout\u003c\/h3\u003e\u003cp\u003eIn industrial controls, this transceiver can be used to read signals from sensors with open-collector outputs, providing a clean digital signal to the controller.\u003c\/p\u003e\u003ctable\u003e\n\u003ccolgroup\u003e\u003ccol\u003e\u003c\/colgroup\u003e \u003ctbody\u003e \u003ctr\u003e \t\u003ctd\u003eProduct attributes\u003c\/td\u003e \t\u003ctd\u003eProperty Value\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eManufacturer\u003c\/td\u003e \t\u003ctd\u003eMotorola\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProduct Series\u003c\/td\u003e \t\u003ctd\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackaging\u003c\/td\u003e \t\u003ctd\u003eBulk | \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePart Status\u003c\/td\u003e \t\u003ctd\u003eActive\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eLogic Type\u003c\/td\u003e \t\u003ctd\u003eTransceiver, Non-Inverting\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eNumber of Elements\u003c\/td\u003e \t\u003ctd\u003e1\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eNumber of Bits per Element\u003c\/td\u003e \t\u003ctd\u003e8\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eInput Type\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eOutput Type\u003c\/td\u003e \t\u003ctd\u003eOpen Collector\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eCurrent - Output High, Low\u003c\/td\u003e \t\u003ctd\u003e100µA, 24mA\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eVoltage - Supply\u003c\/td\u003e \t\u003ctd\u003e4.75V ~ 5.25V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eOperating Temperature\u003c\/td\u003e \t\u003ctd\u003e0°C ~ 70°C (TA)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eGrade\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eQualification\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eMounting Type\u003c\/td\u003e \t\u003ctd\u003eSurface Mount\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackage \/ Case\u003c\/td\u003e \t\u003ctd\u003e20-SOIC (0.295\", 7.50mm Width)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eSupplier Device Package\u003c\/td\u003e \t\u003ctd\u003e20-SOIC (0.295\", 7.50mm Width)\u003c\/td\u003e \u003c\/tr\u003e  \u003c\/tbody\u003e\n\u003c\/table\u003e\u003cdl\u003e\n\u003cdt\u003eQ: What is the logic family of the SN74LS641DWR2?\u003c\/dt\u003e\n\u003cdd\u003eA: It belongs to the 74LS (Low-Power Schottky) TTL logic family, known for its speed and compatibility with TTL systems.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the function of this IC?\u003c\/dt\u003e\n\u003cdd\u003eA: It is a single-channel non-inverting transceiver, capable of bidirectional data transfer between two buses.\u003c\/dd\u003e\n\u003cdt\u003eQ: How many channels does it have?\u003c\/dt\u003e\n\u003cdd\u003eA: It has 1 channel, but it is a transceiver, meaning it can both transmit and receive data on the same line.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the output type?\u003c\/dt\u003e\n\u003cdd\u003eA: The outputs are Open Collector, requiring external pull-up resistors to define the high-level voltage.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the operating voltage range?\u003c\/dt\u003e\n\u003cdd\u003eA: It operates at a standard TTL supply voltage of 4.75V to 5.25V (5V nominal).\u003c\/dd\u003e\n\u003cdt\u003eQ: What package is available?\u003c\/dt\u003e\n\u003cdd\u003eA: It comes in a 20-pin SOIC package (0.295\" width, 7.50mm), suitable for surface-mount applications.\u003c\/dd\u003e\n\u003c\/dl\u003e","brand":"Motorola","offers":[{"title":"Default Title","offer_id":53665855406369,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/hqickey.com\/products\/sn74ls641dwr2","provider":"HQICKEY","version":"1.0","type":"link"}