{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C024-55JXCT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C024-55JXCT","canonicalUrl":"https://icboms.com/infineon/CY7C024-55JXCT","factsUrl":"https://icboms.com/api/mcp/products/CY7C024-55JXCT","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C024-55JXCT, dual-port asynchronous SRAM, 64Kbit organized 4K × 16, 55 ns access time, 4.5–5.5 V supply, surface-mount 84-PLCC (J-lead) package, commercial temperature 0 °C to 70 °C, Tape & Reel.","salesMarkdown":"## 64 Kbit dual-port SRAM — 55 ns asynchronous access The Cypress CY7C024-55JXCT is a 64 Kbit dual-port asynchronous SRAM organized as 4K words by 16 bits, with a 55 ns access time. This is a volatile memory — data is retained only while power is applied. The dual-port architecture allows two independent systems or processors to read from and write to the same memory array simultaneously, with arbitration logic to resolve access conflicts. Typical applications include shared memory mailboxes, FIFO buffers, and data exchange between DSPs or microcontrollers in telecom, networking, and industrial control equipment where a small, fast inter-processor buffer is needed. ## 55 ns access time — bus timing budget In a system with a 20 MHz bus clock (50 ns period), this leaves essentially no margin for address decoding, buffer delays, or signal settling — the part is best matched to slower buses in the 10–12 MHz range or to asynchronous handshake protocols. For designs needing faster throughput, a 25 ns or 15 ns dual-port SRAM would be required, but those are typically in different density or package options. ## 4K x 16 organization — bus width and addressing The 4K x 16 organization means 12 address lines and 16 bidirectional data lines. This suits 16-bit microcontrollers, DSPs, or any processor with a 16-bit external data bus. For 8-bit systems, the upper and lower bytes can be accessed separately using the byte-select controls typical of Cypress dual-port SRAMs. The 64 Kbit total is a small buffer — enough for a 4K-word mailbox or a 128-byte packet buffer, not a frame buffer or code store. The CY7C024-55JXCT is listed as obsolete. Cypress (now part of Infineon) no longer manufactures this device. ## 84-PLCC J-lead — footprint and rework considerations The 84-PLCC package with J-leads (29.31 mm x 29.31 mm body) is a surface-mount package that can also be socketed using a PLCC-84 socket. J-leads are less prone to solder bridging than gull-wing leads but are harder to inspect after reflow — X-ray or side-view inspection is recommended. The package is larger than modern equivalents; a 100-pin TQFP or BGA would save board area. ## 5 V ±10% supply — legacy rail If the rest of the system runs on lower voltages, level shifters are needed for address, data, and control signals. If the application sees temperature extremes, the CY7C024-55JI (industrial) variant would be the correct choice — but that is also obsolete and must be sourced from surplus.","metaTitle":"Cypress CY7C024-55JXCT Dual-Port SRAM, 64Kbit, 55 ns","metaDescription":"Cypress CY7C024-55JXCT dual-port asynchronous SRAM, 64Kbit (4K x 16), 55 ns access, 4.5-5.5V, 84-PLCC, 0-70°C. Request quote.","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":"Tape & Reel (TR)","Technology":"SRAM - Dual Port, Asynchronous","Access Time":"55 ns","Memory Size":"64Kbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"84-LCC (J-Lead)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"CY7C024","Memory Organization":"4K x 16","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"84-PLCC (29.31x29.31)","Write Cycle Time - Word, Page":"55ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/24372a262b0fdee4cfbd53405e7a28a5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is CY7C024-55JXCT obsolete?","answer":"Yes, the CY7C024-55JXCT is listed as obsolete. Cypress (Infineon) no longer manufactures this device. It is only available through surplus and independent distribution channels. For new designs, a modern dual-port SRAM from Cypress/Infineon or Renesas should be evaluated, but expect different package, voltage, and speed options."},{"question":"Can I use CY7C024-55JXCT in place of CY7C024-55JI?","answer":"They are pin-compatible and have the same 55 ns access time and 4K x 16 organization. You can use the -55JXCT in place of the -55JI only if the application's temperature environment stays within 0 °C to 70 °C. For industrial environments, the -55JI is required."},{"question":"Does CY7C024-55JXCT operate at 5V?","answer":"It is not compatible with 3.3 V or lower supply rails without level translation."},{"question":"Is CY7C024-55JXCT RoHS compliant?","answer":"The evidence does not specify RoHS compliance status for this specific order code. The 'CT' suffix in Cypress part numbers typically indicates lead-free / RoHS-compliant packaging, but this should be verified against the specific date code or manufacturer certificate of compliance. Request the RoHS declaration with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C024-55JXCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C024-55JXCT 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}}