{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C128A-25VC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C128A-25VC","canonicalUrl":"https://icboms.com/infineon/CY7C128A-25VC","factsUrl":"https://icboms.com/api/mcp/products/CY7C128A-25VC","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY7C128A-25VC, asynchronous SRAM, 16Kbit (2K x 8), 25 ns access time, parallel interface, 4.5V-5.5V supply, 0°C-70°C, 24-SOJ surface-mount package.","salesMarkdown":"The CY7C128A-25VC is a Cypress 16Kbit asynchronous SRAM organized as 2K x 8, with a 25 ns access time that sets the read-cycle floor for the memory bus. In a legacy 5V system, that 25 ns window means the CPU or controller can sample data 25 ns after asserting the address — no wait states needed if the processor's memory cycle is 40 ns or slower. The parallel interface is straightforward: address, chip enable, output enable, and bidirectional data lines, no clock or refresh overhead. This part is volatile, so contents are lost at power-down. ## 5V-only supply — not a drop-in for 3.3V designs Supply range is 4.5V to 5.5V, a pure 5V part. If your board runs a 3.3V memory bus, this SRAM will not work without level shifters on every address, data, and control line — and the 5V input thresholds on the chip enable and output enable pins mean the 3.3V logic-high may not reliably reach VIH.","metaTitle":"CY7C128A-25VC Cypress SRAM, 16Kbit 2Kx8, 25 ns, 24-SOJ","metaDescription":"CY7C128A-25VC Cypress asynchronous SRAM, 16Kbit (2Kx8), 25 ns access time, 4.5V-5.5V, 0°C-70°C, 24-SOJ. Obsolete.","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":"25 ns","Memory Size":"16Kbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"24-BSOJ (0.300\\\", 7.62mm Width)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"CY7C128A","Memory Organization":"2K x 8","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"24-SOJ","Write Cycle Time - Word, Page":"25ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.5300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ab05321fe2552bdbd2e984ac4b11b7b6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C128A-25VC/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for CY7C128A-25VC?","answer":"No official Cypress replacement order code is recorded. For a new design, look for a 5V asynchronous SRAM with 2K x 8 organization, 25 ns or faster access time, in a 24-SOJ package. Several vendors offer functionally compatible parts; verify pinout and timing compatibility against your board."},{"question":"What is the access time of CY7C128A-25VC?","answer":"The access time is 25 ns."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C128A-25VC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C128A-25VC 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}}