{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C109B-20ZC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C109B-20ZC","canonicalUrl":"https://icboms.com/infineon/CY7C109B-20ZC","factsUrl":"https://icboms.com/api/mcp/products/CY7C109B-20ZC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C109B-20ZC, 1Mbit (128K x 8) asynchronous SRAM, 20 ns access time, 4.5V–5.5V supply, 0°C to 70°C, 32-TSOP I package, parallel interface.","salesMarkdown":"## 20 ns asynchronous SRAM, 128K x 8, 5V supply It uses a parallel interface and is housed in a 32-TSOP I (32-TFSOP, 0.724\" body width) surface-mount package. Infineon lists the CY7C109B-20ZC as Obsolete. Confirm the package variant (32-TSOP I) and the 5V supply rail before committing. ## 20 ns timing and bus-margin fit The 20 ns access time sets the read-cycle ceiling for the memory bus. In a system originally designed around this part, a slower replacement would stretch the bus cycle and may violate setup/hold margins at the controller side.","metaTitle":"CY7C109B-20ZC Infineon 1Mbit Async SRAM 20 ns TSOP I","metaDescription":"CY7C109B-20ZC by Infineon: 1Mbit (128K x 8) asynchronous SRAM, 20 ns access time, 4.5V-5.5V, 32-TSOP I. Obsolete — sourced per RFQ.","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 - Asynchronous","Access Time":"20 ns","Memory Size":"1Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"32-TFSOP (0.724\\\", 18.40mm 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-TSOP I","Write Cycle Time - Word, Page":"20ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.4000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/614cae6aa7d2f85f36b2b9854b99b404.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C109B-20ZC/alternatives.json"},"ai":{"faq":[{"question":"Is there a direct replacement for the CY7C109B-20ZC?","answer":"Infineon has not published an official successor for the CY7C109B-20ZC. A pin-compatible alternative would need to match the 32-TSOP I package, 128K x 8 organization, 5V supply, and 20 ns or faster access time. Without a manufacturer cross-reference, verify any candidate against the original PCB footprint and timing budget."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C109B-20ZC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C109B-20ZC 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}}