{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY10E422L-7DC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY10E422L-7DC","canonicalUrl":"https://icboms.com/infineon/CY10E422L-7DC","factsUrl":"https://icboms.com/api/mcp/products/CY10E422L-7DC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY10E422L-7DC, 1Kbit (256 x 4) Parallel SRAM, 7 ns Access Time, 4.94 V Supply, Through-Hole 24SBDIP, 0°C to 70°C.","salesMarkdown":"The Cypress CY10E422L-7DC is a 1Kbit parallel SRAM organized as 256 words by 4 bits. Its headline rating is the 7 ns access time, which means the memory can present data on the bus within 7 ns of the address being valid. For a legacy 5 V system running a fast microcontroller or DSP, this keeps the memory from inserting wait states on back-to-back reads. ## Through-hole package — field-swappable This SRAM comes in a 24-pin ceramic DIP (24SBDIP) with through-hole mounting. That is a big deal for field service: you can swap it on site with a soldering iron or a socket, no hot-air station needed. The ceramic package also handles repeated soldering cycles better than plastic, which matters if this lives in a repair kit alongside a dozen other DIPs. ## 4.94 V supply — legacy 5 V logic The supply voltage is listed at 4.94 V, which puts it squarely in 5 V TTL territory. Do not try to run this at 3.3 V — it will not work. If your board has moved to lower-voltage logic, you need a level translator or a different SRAM. It is not rated for the engine bay or an outdoor cabinet.","metaTitle":"CY10E422L-7DC SRAM, 1Kbit Parallel, 7 ns, 24SBDIP","metaDescription":"Cypress CY10E422L-7DC is a 1Kbit (256 x 4) parallel SRAM with 7 ns access time. Through-hole 24SBDIP, 4.94 V supply, 0°C to 70°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"has_mpn":"CY10E422","frame_size":"1Kbit","Access Time":"7 ns","memory_type":"Volatile","package_type":"Bulk","Memory Format":"SRAM","mounting_type":"Through Hole","interface_type":"Parallel","product_status":"Active","lifecycle_stage":"eol_hot","supply_voltage_v":"4.94","Memory Organization":"256 x 4","Operating Temperature High":"0°C to 70°C (TA)","Write Cycle Time - Word, Page":"7ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$17.19","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/587a8fbe8fe1c1f8b6aed5ec33eb0220.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY10E422L-7DC/alternatives.json"},"ai":{"faq":[{"question":"What is the access time of CY10E422L-7DC?","answer":"The access time is 7 ns for both read and write cycles, so the memory can complete a random access within 7 ns of the address being stable."},{"question":"Is there a replacement or equivalent for CY10E422L-7DC?","answer":"The part is still active, so a replacement is not yet needed. For a faster or denser alternative, look at other Cypress parallel SRAMs in the same 24-pin DIP footprint, but verify the pinout and supply voltage against your board."},{"question":"Can CY10E422L-7DC replace CY10E422L-10DC?","answer":"The faster access time only improves timing margin; it will not break a board designed for the slower variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY10E422L-7DC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY10E422L-7DC when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}