{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C109B-20VC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C109B-20VC","canonicalUrl":"https://icboms.com/infineon/CY7C109B-20VC","factsUrl":"https://icboms.com/api/mcp/products/CY7C109B-20VC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C109B-20VC, 1 Mbit asynchronous SRAM, 128K x 8 organization, 20 ns access time, 4.5 V to 5.5 V supply, 0°C to 70°C, 32-SOJ package.","salesMarkdown":"## 20 ns access time — bus timing margin for 5 V systems The part comes in a 32-pin SOJ (32-BSOJ) surface-mount package. This is a parallel-interface, volatile memory intended for high-speed cache, buffer, or scratchpad applications in 5 V logic environments. ## 5 V supply only — not a 3.3 V drop-in This part cannot operate at 3.3 V. If your design uses a 3.3 V memory bus, this is not the correct part — look for a 3.3 V asynchronous SRAM in the same density and speed grade. ## Obsolete — no official successor listed No direct replacement order code is provided by the manufacturer. For new designs, consider a current-production asynchronous SRAM from Cypress (now Infineon) or an alternative vendor. It is not qualified for industrial or automotive applications where extended temperature or AEC-Q100 compliance is required.","metaTitle":"CY7C109B-20VC Cypress 1 Mbit Async SRAM, 20 ns, 5 V, 32-SOJ","metaDescription":"Cypress CY7C109B-20VC 1 Mbit (128K x 8) asynchronous SRAM with 20 ns access time, 4.5 V to 5.5 V supply, 0°C to 70°C.","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":"Tube","Technology":"SRAM - Asynchronous","Access Time":"20 ns","Memory Size":"1Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"32-BSOJ (0.400\\\", 10.16mm Width)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"CY7C109","Memory Organization":"128K x 8","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"32-SOJ","Write Cycle Time - Word, Page":"20ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/40f3e5818956a67af00e222105fcb2b4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is CY7C109B-20VC obsolete?","answer":"Yes, Cypress has listed the CY7C109B-20VC as Obsolete. No official successor is provided. Procurement should plan for surplus or broker-channel sourcing."},{"question":"Can CY7C109B-20VC operate at 3.3V?","answer":"No. This part is not designed for 3.3 V operation."},{"question":"What is the difference between CY7C109B-20VC and CY7C109B-15VC?","answer":"The CY7C109B-15VC has a 15 ns access time versus the 20 ns of the -20VC. Both are 1 Mbit asynchronous SRAMs in the same 32-SOJ package and 5 V supply range. The -15VC is faster but otherwise pin-compatible."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C109B-20VC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C109B-20VC 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}}