{"product_id":"mc74hc125afr1","title":"MC74HC125AFR1","description":"\u003cp\u003eThe MC74HC125A is a high-speed CMOS quad buffer featuring non-inverting outputs with 3-State control. Operating from 2V to 6V, it provides 7.8mA of drive current per channel, ensuring robust signal transmission. Its 3-State outputs allow for bus-oriented applications, making it ideal for memory interfacing, signal buffering, and level shifting in mixed-voltage systems. The device is available in a compact 14-SOIC package and supports a wide temperature range of -55°C to 125°C, suitable for industrial and automotive environments.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWide 2V to 6V Supply Range: Compatible with both 3.3V and 5V logic systems, simplifying mixed-voltage design.\u003c\/li\u003e\n\u003cli\u003e3-State Outputs: Enables bus multiplexing and system isolation, preventing data contention.\u003c\/li\u003e\n\u003cli\u003eHigh-Temperature Range (-55°C to 125°C): Suitable for harsh automotive and industrial environments.\u003c\/li\u003e\n\u003cli\u003eQuad Channel Configuration: Provides four independent buffers in a single package, saving board space.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBus Line Driving\u003c\/h3\u003e\u003cp\u003eThe 3-State outputs allow multiple MC74HC125A devices to be connected to a common data bus. By enabling only one buffer at a time, data can be multiplexed without bus contention, ideal for memory and peripheral interfacing.\u003c\/p\u003e\u003ch3\u003eSignal Buffering for High-Fanout\u003c\/h3\u003e\u003cp\u003eWith a wide 2V to 6V supply, this buffer can drive multiple TTL or CMOS inputs. Its high-current output (7.8mA) ensures signal integrity even when fan-out exceeds 10 loads, preventing logic level degradation.\u003c\/p\u003e\u003ch3\u003eLevel Shifting in Mixed-Voltage Systems\u003c\/h3\u003e\u003cp\u003eOperating from 2V to 6V, the MC74HC125A can translate signals between 3.3V and 5V domains. For example, a 3.3V microcontroller output can be buffered to drive a 5V peripheral, simplifying mixed-voltage design.\u003c\/p\u003e\u003ch3\u003eIsolation and Impedance Control\u003c\/h3\u003e\u003cp\u003eIn industrial control systems, the 3-State feature can isolate a failing subsystem from the main controller. By placing the buffer in high-impedance mode, the faulty section is disconnected, improving system reliability.\u003c\/p\u003e\u003ch3\u003eAutomotive ECU Signal Conditioning\u003c\/h3\u003e\u003cp\u003eRated for -55°C to 125°C, this buffer is suitable for automotive engine control units. It can condition and distribute sensor signals to multiple processing stages, ensuring stable operation under extreme temperatures.\u003c\/p\u003e\u003ch3\u003eMemory Address Decoding\u003c\/h3\u003e\u003cp\u003eThe non-inverting buffer can drive address lines in memory systems. Its 3-State output allows multiple memory banks to share the same address bus, enabling efficient memory expansion in embedded designs.\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\u003eonsemi\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProduct Series\u003c\/td\u003e \t\u003ctd\u003e74HC\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\u003eBuffer, Non-Inverting\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eNumber of Elements\u003c\/td\u003e \t\u003ctd\u003e4\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eNumber of Bits per Element\u003c\/td\u003e \t\u003ctd\u003e1\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\u003e3-State\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eCurrent - Output High, Low\u003c\/td\u003e \t\u003ctd\u003e7.8mA, 7.8mA\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eVoltage - Supply\u003c\/td\u003e \t\u003ctd\u003e2V ~ 6V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eOperating Temperature\u003c\/td\u003e \t\u003ctd\u003e-55°C ~ 125°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\u003e14-SOIC (0.209\", 5.30mm Width)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eSupplier Device Package\u003c\/td\u003e \t\u003ctd\u003e14-SOIC\u003c\/td\u003e \u003c\/tr\u003e  \u003ctr\u003e   \u003ctd\u003eROHS\u003c\/td\u003e   \u003ctd\u003e\u003cimg class=\"ROSHICON\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0910\/9756\/3425\/files\/ROHSICON.png?v=1757832376\"\u003e\u003c\/td\u003e  \u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cdl\u003e\n\u003cdt\u003eQ: What is the logic family of the MC74HC125AFR1?\u003c\/dt\u003e\n\u003cdd\u003eA: It belongs to the 74HC (High-Speed CMOS) logic family.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the function of this IC?\u003c\/dt\u003e\n\u003cdd\u003eA: It is a quad (4-channel) non-inverting buffer with 3-State outputs.\u003c\/dd\u003e\n\u003cdt\u003eQ: How many channels does it have?\u003c\/dt\u003e\n\u003cdd\u003eA: It has 4 independent buffer channels.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the output type?\u003c\/dt\u003e\n\u003cdd\u003eA: The outputs are 3-State, allowing for high-impedance (disconnect) states.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the operating voltage range?\u003c\/dt\u003e\n\u003cdd\u003eA: It operates from 2V to 6V, making it compatible with TTL and CMOS logic levels.\u003c\/dd\u003e\n\u003cdt\u003eQ: What package is available?\u003c\/dt\u003e\n\u003cdd\u003eA: It comes in a 14-pin SOIC package (5.30mm width).\u003c\/dd\u003e\n\u003c\/dl\u003e","brand":"onsemi","offers":[{"title":"Default Title","offer_id":53665785217313,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/hqickey.com\/de\/products\/mc74hc125afr1","provider":"HQICKEY","version":"1.0","type":"link"}