{"product_id":"at45dq321-shd-b","title":"AT45DQ321-SHD-B","description":"\u003ch2\u003eAT45DQ321-SHD-B - 32Mbit SPI Serial Flash Memory IC\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eAT45DQ321-SHD-B\u003c\/strong\u003e from Renesas Electronics is a high-performance 32Mbit serial flash memory device designed for embedded systems requiring reliable, non-volatile data storage. With its industry-standard SPI interface and 104MHz clock frequency, this flash memory IC delivers fast read\/write operations while maintaining low power consumption across a wide voltage range of 2.5V to 3.6V.\u003c\/p\u003e\u003cp\u003eThis industrial-grade flash memory component is engineered for mission-critical applications where data integrity, long-term availability, and consistent performance are essential. The AT45DQ321-SHD-B combines proven flash technology with modern interface standards, making it an ideal choice for OEMs and system integrators building next-generation embedded solutions.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed Performance:\u003c\/strong\u003e 104MHz SPI interface enables rapid data access for time-critical applications, reducing system latency and improving overall throughput\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Memory Organization:\u003c\/strong\u003e 528 bytes × 8192 pages architecture optimizes data management and allows efficient sector-based operations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Temperature Range:\u003c\/strong\u003e Operates reliably from -40°C to 85°C for harsh environments including automotive, industrial control, and outdoor installations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Power Operation:\u003c\/strong\u003e Wide voltage supply range (2.5V ~ 3.6V) supports battery-powered designs and energy-efficient systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Surface Mount Package:\u003c\/strong\u003e 8-SOIC footprint saves valuable PCB space while maintaining excellent thermal characteristics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Write Cycles:\u003c\/strong\u003e 8µs word write, 4ms page write for efficient data updates and reduced programming time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-Volatile Storage:\u003c\/strong\u003e Retains data without power, perfect for configuration storage, firmware updates, and data logging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry-Standard SPI Interface:\u003c\/strong\u003e Easy integration with microcontrollers, FPGAs, and other embedded processors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Advantages for Embedded Design\u003c\/h3\u003e\u003cp\u003eThe AT45DQ321-SHD-B offers several technical advantages that make it stand out in the serial flash memory market. Its 32Mbit (4MB) capacity provides ample storage for firmware, boot code, configuration parameters, and data logging applications. The SPI serial interface minimizes pin count requirements, freeing up valuable I\/O resources for other system functions.\u003c\/p\u003e\u003cp\u003eWith a maximum clock frequency of 104MHz, this flash memory delivers read throughput suitable for code execution and rapid data retrieval. The page-based architecture (528 bytes per page) aligns well with common data structures and enables efficient wear-leveling algorithms when implemented in firmware.\u003c\/p\u003e\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\u003cp\u003eThis serial flash memory is perfectly suited for:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Controllers:\u003c\/strong\u003e PLC systems, process control, factory automation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomotive Electronics:\u003c\/strong\u003e ECU firmware storage, infotainment systems, ADAS modules\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIoT Devices:\u003c\/strong\u003e Smart sensors, edge computing nodes, connected appliances\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Logging Systems:\u003c\/strong\u003e Environmental monitoring, instrumentation, black box recorders\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirmware Storage:\u003c\/strong\u003e Bootloaders, application code, over-the-air update staging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration Management:\u003c\/strong\u003e System parameters, calibration data, user settings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmbedded System Boot Code:\u003c\/strong\u003e Primary or backup boot storage for reliable system startup\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedical Devices:\u003c\/strong\u003e Patient monitoring equipment, diagnostic instruments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTelecommunications:\u003c\/strong\u003e Network equipment, base stations, routers\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe AT45DQ321-SHD-B provides the reliability and performance required for mission-critical applications where data loss is not an option.\u003c\/p\u003e\u003ch3\u003eWhy Choose HQICKEY?\u003c\/h3\u003e\u003cp\u003eWhen you source the AT45DQ321-SHD-B from HQICKEY, you receive more than just a component:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% Authentic Renesas Components:\u003c\/strong\u003e Every IC is sourced directly from authorized channels with full traceability and authenticity verification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong Lifecycle Availability:\u003c\/strong\u003e We maintain strategic inventory for production continuity, protecting you from obsolescence and supply chain disruptions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDedicated Technical Support:\u003c\/strong\u003e Our engineering team provides pre-sales consultation, integration guidance, and post-sales technical assistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorldwide Shipping:\u003c\/strong\u003e Reliable fulfillment with tracking to ensure your components arrive safely and on schedule\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Assurance:\u003c\/strong\u003e Every component undergoes rigorous quality control to ensure it meets original manufacturer specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompetitive Pricing:\u003c\/strong\u003e Volume pricing available for production quantities with transparent quotations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumentation Support:\u003c\/strong\u003e Access to datasheets, application notes, and reference designs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eComplete Technical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ccolgroup\u003e\u003ccol\u003e\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct attributes\u003c\/td\u003e\n\u003ctd\u003eProperty Value\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRenesas Electronics Corporation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackaging\u003c\/td\u003e\n\u003ctd\u003eTube | \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Type\u003c\/td\u003e\n\u003ctd\u003eNon-Volatile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Format\u003c\/td\u003e\n\u003ctd\u003eFLASH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTechnology\u003c\/td\u003e\n\u003ctd\u003eFLASH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Size\u003c\/td\u003e\n\u003ctd\u003e32Mbit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Organization\u003c\/td\u003e\n\u003ctd\u003e528 Bytes x 8192 pages\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Interface\u003c\/td\u003e\n\u003ctd\u003eSPI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClock Frequency\u003c\/td\u003e\n\u003ctd\u003e104 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWrite Cycle Time - Word, Page\u003c\/td\u003e\n\u003ctd\u003e8µs, 4ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccess Time\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage - Supply\u003c\/td\u003e\n\u003ctd\u003e2.5V ~ 3.6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C ~ 85°C (TC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrade\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQualification\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eSurface Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage \/ Case\u003c\/td\u003e\n\u003ctd\u003e8-SOIC (0.209\", 5.30mm Width)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplier Device Package\u003c\/td\u003e\n\u003ctd\u003e8-SOIC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eROHS\u003c\/td\u003e\n\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\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eDesign Considerations \u0026amp; Integration Tips\u003c\/h3\u003e\u003cp\u003eWhen integrating the AT45DQ321-SHD-B into your design, consider the following best practices:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEnsure proper decoupling capacitors (0.1µF ceramic) are placed close to the VCC pin\u003c\/li\u003e\n\u003cli\u003eUse appropriate pull-up resistors on the SPI bus if multiple devices share the interface\u003c\/li\u003e\n\u003cli\u003eImplement proper chip select timing to avoid bus contention\u003c\/li\u003e\n\u003cli\u003eConsider write endurance and implement wear-leveling for frequently updated data\u003c\/li\u003e\n\u003cli\u003eReview the datasheet for specific timing requirements and AC characteristics\u003c\/li\u003e\n\u003cli\u003ePlan for firmware update mechanisms that leverage the page-based architecture\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eQuality \u0026amp; Compliance\u003c\/h3\u003e\u003cp\u003eThe AT45DQ321-SHD-B meets stringent quality and environmental standards including RoHS compliance for lead-free manufacturing. Renesas Electronics maintains ISO 9001 certified manufacturing facilities and implements comprehensive quality management systems throughout the production lifecycle.\u003c\/p\u003e\u003ch3\u003eOrdering Information \u0026amp; Lead Times\u003c\/h3\u003e\u003cp\u003eThe AT45DQ321-SHD-B is available for immediate shipment in production quantities. Contact our sales team for volume pricing, custom packaging options, and lead time information for larger orders. We maintain strategic inventory levels to support both prototype development and full-scale production requirements.\u003c\/p\u003e\u003ch3\u003eRelated Products \u0026amp; Resources\u003c\/h3\u003e\u003cp\u003eExplore our complete range of \u003ca href=\"https:\/\/hqickey.com\/collections\/memory\" title=\"Memory ICs - Flash, DRAM, SRAM \u0026amp; More\"\u003eMemory ICs - Flash, DRAM, SRAM \u0026amp; More\u003c\/a\u003e including other serial flash densities, parallel flash, DRAM, SRAM, EEPROM, and specialized memory solutions for your embedded designs. Our memory product portfolio covers capacities from a few kilobits to multiple gigabits across various interface standards.\u003c\/p\u003e\u003cp\u003eVisit \u003ca href=\"https:\/\/hqickey.com\/\" title=\"HQICKEY - Premium Semiconductor Components Distributor\"\u003eHQICKEY - Premium Semiconductor Components Distributor\u003c\/a\u003e to discover our full catalog of authentic semiconductor components including microcontrollers, FPGAs, interface ICs, power management, analog components, and passive devices with worldwide shipping and dedicated technical support.\u003c\/p\u003e\u003cp\u003eStay informed with the latest industry insights, product announcements, technical guides, application notes, and design tips on our \u003ca href=\"https:\/\/hqickey.com\/blogs\/news\" title=\"HQICKEY News \u0026amp; Technical Blog\"\u003eHQICKEY News \u0026amp; Technical Blog\u003c\/a\u003e. Our blog features in-depth articles on component selection, design best practices, supply chain management, and emerging technologies in the semiconductor industry.\u003c\/p\u003e","brand":"Renesas Electronics Corporation","offers":[{"title":"Default Title","offer_id":51115968299297,"sku":"AT45DQ321-SHD-B","price":7.31,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0910\/9756\/3425\/files\/IC_Memory_1695_8S2_S_8_5f531b7f-ac4e-4b8c-9b73-44b75391dc10.jpg?v=1743644594","url":"https:\/\/hqickey.com\/de\/products\/at45dq321-shd-b","provider":"HQICKEY","version":"1.0","type":"link"}