{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1550KV18-400BZXI","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1550KV18-400BZXI","canonicalUrl":"https://icboms.com/infineon/CY7C1550KV18-400BZXI","factsUrl":"https://icboms.com/api/mcp/products/CY7C1550KV18-400BZXI","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C1550KV18-400BZXI synchronous SRAM, DDR II+, 72Mbit (2M x 36), 400 MHz clock, 1.7V-1.9V supply, -40 to 85°C, 165-FBGA (13x15) tray.","salesMarkdown":"## 400 MHz DDR II+ SRAM for high-throughput line cards This part targets networking, telecom, and high-end computing applications where back-to-back read/write throughput and zero bus-turnaround dead cycles are critical — exactly the class of SRAM used in packet buffers, lookup tables, and queue managers on line cards and base stations. ## What the 400 MHz clock and 2M x 36 organization mean for the BOM The 400 MHz clock rate on a DDR II+ (Double Data Rate) interface means the memory delivers two data transfers per clock cycle, yielding an effective data rate of 800 MT/s per pin. For a 36-bit-wide word, that translates to a peak bandwidth of 28.8 Gbit/s — enough to keep a high-speed ASIC or FPGA fed without wait states. The 2M x 36 organization is a 72 Mbit density, but the 36-bit bus width is the key fit parameter: it matches the natural word width of many network processors and FEC engines. ## Industrial temperature grade — deployment environment The 1.7V to 1.9V core supply aligns with low-power 1.8V logic families common in modern FPGAs and SoCs. The 165-FBGA (13x15 mm) footprint is a standard ball grid array for this density class; the 1.0 mm ball pitch (typical for a 13x15 FBGA) requires careful PCB routing but is manageable with a 4-layer board if the via fanout is planned for.","metaTitle":"CY7C1550KV18-400BZXI Infineon 72Mbit SRAM, 400 MHz DDR II+","metaDescription":"Infineon CY7C1550KV18-400BZXI 72Mbit synchronous SRAM, 400 MHz clock, 2M x 36 organization, -40 to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Mfr":"Infineon Technologies","Series":"-","Package":"Tray","Technology":"SRAM - Synchronous, DDR II+","Memory Size":"72Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"165-LBGA","Product Status":"Active","Clock Frequency":"400 MHz","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"1.7V ~ 1.9V","Base Product Number":"CY7C1550","Memory Organization":"2M x 36","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"165-FBGA (13x15)","Write Cycle Time - Word, Page":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$175.3125","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/05e092eed8677677558d6b1caff65ea0.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C1550KV18-400BZXI/alternatives.json"},"ai":{"faq":[{"question":"What is the exact memory organization and clock speed of CY7C1550KV18-400BZXI?","answer":"It is organized as 2M x 36 (72 Mbit total) and clocked at 400 MHz in a DDR II+ synchronous interface."},{"question":"Can I use CY7C1550KV18-400BZXI as a direct replacement for CY7C1550KV18-333?","answer":"The CY7C1550KV18-400BZXI and the CY7C1550KV18-333 are pin-compatible in the same 165-FBGA package and share the same 2M x 36 organization, but the 400 MHz part runs at a higher clock rate. Dropping a 400 MHz part into a 333 MHz socket is fine if the controller supports the faster speed; the reverse (333 MHz part in a 400 MHz socket) will not meet timing. Check the memory controller's clock-tree and timing closure before substituting."},{"question":"Is CY7C1550KV18-400BZXI RoHS compliant and lead-free?","answer":"The 165-FBGA package is compatible with lead-free reflow profiles (260°C peak)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1550KV18-400BZXI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1550KV18-400BZXI 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}}