{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C136A-55NXI","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C136A-55NXI","canonicalUrl":"https://icboms.com/infineon/CY7C136A-55NXI","factsUrl":"https://icboms.com/api/mcp/products/CY7C136A-55NXI","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C136A-55NXI, 16Kbit (2Kx8) dual-port asynchronous SRAM, 55 ns access time, 4.5-5.5V supply, parallel interface, surface-mount 52-BQFP, -40 to 85°C operating temperature.","salesMarkdown":"## Dual-port SRAM for shared-memory handshaking The Cypress CY7C136A-55NXI is a 16 Kbit dual-port asynchronous SRAM organized as 2K x 8, intended for shared-memory applications where two independent processors or controllers need to exchange data without bus contention. The dual-port architecture provides two separate address, data, and control ports, each with its own chip enable and output enable, allowing simultaneous reads and writes to different memory locations. ## 55 ns access time — bus timing margin For a processor running at 20 MHz (50 ns cycle), this part leaves only 5 ns of margin before the next clock edge — tight enough that the board designer should verify setup/hold timing against the processor's memory controller. If the system bus runs slower (e.g., 10 MHz), the margin is comfortable. Cypress Semiconductor has designated the CY7C136A-55NXI as obsolete. Buyers should verify date code freshness and RoHS compliance (the 'XI' suffix indicates a lead-free, RoHS-compliant finish) when ordering from surplus inventory. ## Package and footprint — 52-BQFP (PQFP) Supplied in a 52-lead BQFP (bumpered quad flat pack) with a 10x10 mm body, the CY7C136A-55NXI is a surface-mount device. The shipping medium is tray. For PCB layout, the 0.65 mm pitch requires a fine-pitch soldering process; a solder paste stencil with 0.12 mm thickness is typical for this lead pitch.","metaTitle":"Cypress CY7C136A-55NXI 16Kbit Dual-Port Async SRAM, 55 ns","metaDescription":"Cypress CY7C136A-55NXI 16Kbit (2Kx8) dual-port asynchronous SRAM, 55 ns access time, 4.5-5.5V supply, -40 to 85°C, 52-BQFP.","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":"Tray","Technology":"SRAM - Dual Port, Asynchronous","Access Time":"55 ns","Memory Size":"16Kbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"52-BQFP","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"CY7C136","Memory Organization":"2K x 8","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"52-PQFP (10x10)","Write Cycle Time - Word, Page":"55ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/90caa3e64aa3f42e05e64c643a800680.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C136A-55NXI/alternatives.json"},"ai":{"faq":[{"question":"Is CY7C136A-55NXI obsolete?","answer":"Yes, Cypress Semiconductor has listed the CY7C136A-55NXI as obsolete. No official replacement part number has been published."},{"question":"What is the replacement for CY7C136A-55NXI?","answer":"Cypress has not designated an official successor for the CY7C136A-55NXI. For a pin-compatible alternative, evaluate other 2K x 8 dual-port asynchronous SRAMs in the same 52-BQFP package from vendors such as Renesas (formerly IDT) or GSI Technology — verify access time and supply voltage compatibility before substituting."},{"question":"Is CY7C136A-55NXI RoHS compliant?","answer":"The 'XI' suffix in the order code indicates a lead-free, RoHS-compliant finish. The part description confirms RoHS compliance."},{"question":"What is the difference between CY7C136A-55NXI and CY7C136A-55NXC?","answer":"The suffix 'XI' denotes a lead-free, RoHS-compliant finish, while 'NXC' typically indicates a tin-lead (non-RoHS) finish. Both share the same 55 ns access time, 16 Kbit density, and 52-BQFP package. The 'XI' variant is the environmentally compliant version."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C136A-55NXI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C136A-55NXI 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}}