{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C0251-15AC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C0251-15AC","canonicalUrl":"https://icboms.com/infineon/CY7C0251-15AC","factsUrl":"https://icboms.com/api/mcp/products/CY7C0251-15AC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C0251-15AC dual-port asynchronous SRAM, 144 Kbit (8K x 18), 15 ns access time, 4.5-5.5 V supply, 100-LQFP, 0 to 70 °C operating temperature.","salesMarkdown":"## 15 ns dual-port SRAM — the bus-timing anchor The Cypress CY7C0251-15AC is a 144 Kbit (8K x 18) dual-port asynchronous SRAM with a 15 ns access time, designed for systems where two independent buses need simultaneous read/write access to a shared memory array. The dual-port architecture eliminates the arbitration overhead of a single-port SRAM with external muxing — each port has its own address, data, and control lines, so a processor and a DSP (or two processors) can access the same memory location without dead cycles. ## Package and footprint — 100-TQFP, 14x14 mm The part comes in a 100-LQFP package (also specified as 100-TQFP, 14x14 mm body). The 0.5 mm pitch requires a controlled-impedance PCB stack-up for the address and data lines if the bus runs near the 15 ns access limit. Decouple each VDD pin with a 100 nF ceramic placed within 2 mm of the pin; a 10 µF bulk cap per side of the package handles the switching transient when both ports access the same row.","metaTitle":"CY7C0251-15AC Cypress Dual-Port SRAM, 144Kbit, 15 ns","metaDescription":"Cypress CY7C0251-15AC dual-port asynchronous SRAM, 144 Kbit (8K x 18), 15 ns access time, 4.5-5.5 V, 100-LQFP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Mfr":"Infineon Technologies","Series":"-","Package":"Bag","Technology":"SRAM - Dual Port, Asynchronous","Access Time":"15 ns","Memory Size":"144Kbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"100-LQFP","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"CY7C0251","Memory Organization":"8K x 18","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"100-TQFP (14x14)","Write Cycle Time - Word, Page":"15ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/24372a262b0fdee4cfbd53405e7a28a5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can CY7C0251-15AC be used in a 5V system?","answer":"Yes. The 15 ns access time is specified at 5 V; at 4.5 V the timing may degrade by a few nanoseconds — budget margin if your system runs near the minimum supply."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C0251-15AC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C0251-15AC when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}