{"product_id":"sst25wf040b-40e-sn","title":"SST25WF040B-40E\/SN","description":"\u003ch2\u003eSST25WF040B-40E\/SN - 4Mbit SPI Serial Flash Memory IC\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eSST25WF040B-40E\/SN\u003c\/strong\u003e from Microchip Technology is a high-performance 4Mbit SPI serial flash memory device designed for demanding industrial, automotive, and aerospace applications. This non-volatile flash memory IC features a 512K x 8 organization with a 40MHz clock frequency and operates at ultra-low voltage (1.65V to 1.95V), making it ideal for power-sensitive embedded systems.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed Performance:\u003c\/strong\u003e 40MHz SPI interface enables rapid data access and transfer with support for standard SPI modes 0 and 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Power Operation:\u003c\/strong\u003e 1.65V-1.95V supply voltage reduces power consumption, with typical active current of 8mA and standby current as low as 1µA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Temperature Range:\u003c\/strong\u003e -40°C to 125°C operation for harsh industrial and automotive environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Surface Mount Package:\u003c\/strong\u003e 8-SOIC (3.90mm width) saves board space in space-constrained designs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Write Cycles:\u003c\/strong\u003e 1ms page\/word write cycle time with automatic erase-before-write\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial-Grade Reliability:\u003c\/strong\u003e RoHS compliant, 100,000 program\/erase cycles, and 100-year data retention\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware \u0026amp; Software Protection:\u003c\/strong\u003e Block protection features and write-protect pin for data security\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Compatibility:\u003c\/strong\u003e Standard SPI protocol compatible with most microcontrollers and processors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\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\u003eMicrochip Technology\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProduct Series\u003c\/td\u003e \t\u003ctd\u003eSST25\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackaging\u003c\/td\u003e \t\u003ctd\u003eTube | \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eMemory Type\u003c\/td\u003e \t\u003ctd\u003eNon-Volatile\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eMemory Format\u003c\/td\u003e \t\u003ctd\u003eFLASH\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eTechnology\u003c\/td\u003e \t\u003ctd\u003eFLASH\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eMemory Size\u003c\/td\u003e \t\u003ctd\u003e4Mbit\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eMemory Organization\u003c\/td\u003e \t\u003ctd\u003e512K x 8\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eMemory Interface\u003c\/td\u003e \t\u003ctd\u003eSPI\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eClock Frequency\u003c\/td\u003e \t\u003ctd\u003e40 MHz\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eWrite Cycle Time - Word, Page\u003c\/td\u003e \t\u003ctd\u003e1ms\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eAccess Time\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eVoltage - Supply\u003c\/td\u003e \t\u003ctd\u003e1.65V ~ 1.95V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eOperating Temperature\u003c\/td\u003e \t\u003ctd\u003e-40°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\u003e8-SOIC (0.154\", 3.90mm Width)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eSupplier Device Package\u003c\/td\u003e \t\u003ctd\u003e8-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=1761919810\"\u003e\u003c\/td\u003e  \u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eMemory Architecture \u0026amp; Performance\u003c\/h3\u003e\u003cp\u003eThe SST25WF040B features a sophisticated memory architecture optimized for embedded applications:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory Organization:\u003c\/strong\u003e 512K x 8-bit configuration provides flexible byte-level access\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSector Structure:\u003c\/strong\u003e Organized into uniform 4KB sectors for efficient erase operations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePage Programming:\u003c\/strong\u003e 256-byte page buffer enables fast sequential writes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRead Performance:\u003c\/strong\u003e Sequential read speeds up to 40MHz for rapid data retrieval\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommand Set:\u003c\/strong\u003e Industry-standard SPI command set including Read, Program, Erase, and Status operations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis SPI flash memory IC is perfectly suited for:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmbedded System Firmware Storage:\u003c\/strong\u003e Store bootloaders, application code, and configuration data\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBIOS and Boot Code Applications:\u003c\/strong\u003e Reliable non-volatile storage for system initialization\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Logging and Configuration Storage:\u003c\/strong\u003e Retain critical system parameters and operational data\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Control Systems:\u003c\/strong\u003e Program storage for PLCs, HMIs, and automation controllers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomotive Electronics:\u003c\/strong\u003e ECU firmware, infotainment systems, and ADAS applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAerospace and Defense Systems:\u003c\/strong\u003e Mission-critical data storage in harsh environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIoT and Connected Devices:\u003c\/strong\u003e Firmware updates and local data caching\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedical Equipment:\u003c\/strong\u003e Configuration and calibration data storage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign Considerations\u003c\/h3\u003e\u003cp\u003eWhen integrating the SST25WF040B into your design:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEnsure proper decoupling capacitors (0.1µF ceramic) close to VCC pins\u003c\/li\u003e\n\u003cli\u003eUse appropriate pull-up resistors on CS# and WP# pins\u003c\/li\u003e\n\u003cli\u003eConsider SPI bus speed and signal integrity for reliable operation\u003c\/li\u003e\n\u003cli\u003eImplement proper power sequencing to avoid data corruption\u003c\/li\u003e\n\u003cli\u003eReview the datasheet for timing diagrams and AC characteristics\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Choose HQICKEY for Your Memory Components?\u003c\/h3\u003e\u003cp\u003eAt HQICKEY, we specialize in providing authentic, high-reliability semiconductor components with comprehensive lifecycle support. Our engineering-focused approach ensures you receive genuine Microchip products backed by technical expertise and global distribution capabilities. We maintain rigorous quality control and offer:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e100% authentic components from authorized sources\u003c\/li\u003e\n\u003cli\u003eFull traceability and documentation\u003c\/li\u003e\n\u003cli\u003eTechnical support from experienced engineers\u003c\/li\u003e\n\u003cli\u003eCompetitive pricing for volume orders\u003c\/li\u003e\n\u003cli\u003eFast global shipping and logistics\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eRelated Products \u0026amp; Resources\u003c\/h3\u003e\u003cp\u003eExplore our complete range of \u003ca href=\"https:\/\/hqickey.com\/collections\/memory\" title=\"Memory Semiconductor Devices: EEPROM, Flash, DRAM \u0026amp; SRAM (64b-6Tb) - HQICKEY\"\u003eMemory Semiconductor Devices\u003c\/a\u003e including EEPROM, Flash, DRAM, and SRAM solutions from leading manufacturers like Microchip, Winbond, Cypress, and more.\u003c\/p\u003e\u003cp\u003eVisit our \u003ca href=\"https:\/\/hqickey.com\/\" title=\"HQICKEY - Premium Semiconductors for Embedded \u0026amp; Industrial Markets\"\u003eHQICKEY homepage\u003c\/a\u003e to discover our full catalog of premium semiconductors for embedded and industrial applications, including microcontrollers, power management ICs, FPGAs, and analog components.\u003c\/p\u003e\u003cp\u003eStay updated with the latest industry insights, product releases, technical articles, and application notes on our \u003ca href=\"https:\/\/hqickey.com\/blogs\/news\" title=\"NEWS - HQICKEY Blog\"\u003eNEWS blog\u003c\/a\u003e.\u003c\/p\u003e","brand":"Microchip Technology","offers":[{"title":"Default Title","offer_id":51115701272865,"sku":"SST25WF040B-40E\/SN","price":4.53,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0910\/9756\/3425\/files\/IC_Memory_150_C04-057_SN_OA_8_8a15f17b-0fc0-4114-a0d7-650f2aac153f.jpg?v=1743635668","url":"https:\/\/hqickey.com\/de\/products\/sst25wf040b-40e-sn","provider":"HQICKEY","version":"1.0","type":"link"}