{"product_id":"74ac540sc","title":"74AC540SC","description":"\u003cp\u003eThe 74AC540SC is a high-speed inverting buffer from Fairchild Semiconductor, designed for general-purpose digital logic applications. Operating from 2V to 6V, it provides a single channel with 3-State outputs capable of sourcing and sinking 24mA. This buffer is ideal for bus interfacing, signal inversion, and driving capacitive loads in both 3.3V and 5V systems. Its 20-SOIC package makes it suitable for space-constrained PCB designs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide 2V to 6V Supply Range:\u003c\/strong\u003e Compatible with both 3.3V and 5V logic systems, simplifying mixed-voltage designs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-State Outputs:\u003c\/strong\u003e Enables bus sharing and multiplexing without external isolation components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh 24mA Output Drive:\u003c\/strong\u003e Can drive heavy loads and long traces, improving signal integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInverting Function:\u003c\/strong\u003e Provides signal inversion, useful for active-low control and data lines.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBus Interfacing and Isolation\u003c\/h3\u003e\u003cp\u003eUse the 74AC540SC to buffer address or data lines between different logic sections. The 3-State outputs allow multiple devices to share a common bus without contention, controlled by an output enable signal.\u003c\/p\u003e\u003ch3\u003eSignal Inversion and Level Shifting\u003c\/h3\u003e\u003cp\u003eWith a wide 2V to 6V supply range, this buffer can act as a level shifter between 3.3V and 5V logic. The inverting function is useful for active-low control signals.\u003c\/p\u003e\u003ch3\u003eDriving High-Capacitance Loads\u003c\/h3\u003e\u003cp\u003eThe 24mA output current capability enables driving long PCB traces or multiple inputs, reducing signal degradation and improving noise immunity in high-speed digital systems.\u003c\/p\u003e\u003ch3\u003eMemory Address Buffering\u003c\/h3\u003e\u003cp\u003eIn microcontroller or processor systems, this buffer can isolate the CPU from memory arrays, providing the necessary drive strength and preventing loading effects on the processor outputs.\u003c\/p\u003e\u003ch3\u003eIndustrial Control Logic\u003c\/h3\u003e\u003cp\u003eIn industrial environments, the 74AC540SC can buffer sensor signals or control lines, providing robust signal conditioning and isolation between control logic and power stages.\u003c\/p\u003e\u003ch3\u003eTest and Measurement Equipment\u003c\/h3\u003e\u003cp\u003eUse it to buffer and invert signals in test fixtures or data acquisition systems, ensuring accurate signal integrity when routing signals to different measurement modules.\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\u003eFairchild Semiconductor\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProduct Series\u003c\/td\u003e \t\u003ctd\u003e74AC\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackaging\u003c\/td\u003e \t\u003ctd\u003e | \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, 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\u003e3-State\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eCurrent - Output High, Low\u003c\/td\u003e \t\u003ctd\u003e24mA, 24mA\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-40°C ~ 85°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\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 74AC540SC?\u003c\/dt\u003e\n\u003cdd\u003eA: The 74AC540SC belongs to the 74AC logic family, offering high-speed CMOS performance.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the function of this IC?\u003c\/dt\u003e\n\u003cdd\u003eA: It is an inverting buffer with 1 channel, providing signal inversion and buffering.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the output type?\u003c\/dt\u003e\n\u003cdd\u003eA: It features 3-State outputs, allowing connection to shared buses.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the supply voltage range?\u003c\/dt\u003e\n\u003cdd\u003eA: It operates from 2V to 6V, making it compatible with 3.3V and 5V systems.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the output current capability?\u003c\/dt\u003e\n\u003cdd\u003eA: It can source and sink 24mA, suitable for driving moderate loads.\u003c\/dd\u003e\n\u003cdt\u003eQ: What package is available?\u003c\/dt\u003e\n\u003cdd\u003eA: It comes in a 20-SOIC (0.295\", 7.50mm Width) package.\u003c\/dd\u003e\n\u003c\/dl\u003e","brand":"Fairchild Semiconductor","offers":[{"title":"Default Title","offer_id":53666246164769,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/hqickey.com\/products\/74ac540sc","provider":"HQICKEY","version":"1.0","type":"link"}