{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C199CN-12ZXCT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C199CN-12ZXCT","canonicalUrl":"https://icboms.com/infineon/CY7C199CN-12ZXCT","factsUrl":"https://icboms.com/api/mcp/products/CY7C199CN-12ZXCT","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C199CN-12ZXCT, 256Kbit asynchronous SRAM, 32K x 8 organization, 12 ns access time, 4.5V-5.5V supply, 0°C to 70°C, 28-TSOP I, Tape & Reel.","salesMarkdown":"Infineon (formerly Cypress Semiconductor) lists the CY7C199CN-12ZXCT as obsolete. ## 12 ns access time — the timing decision The headline 12 ns access time sets the bus timing budget for this 256Kbit asynchronous SRAM. In a system with a 5V bus, that 12 ns window determines how fast the memory controller can assert chip select and address before data appears on the I/O lines. For a 33 MHz or slower bus, this part leaves comfortable margin; at higher clock rates the 12 ns figure starts to consume a significant fraction of the cycle, so verify hold and setup against your controller's timing parameters. ## 32K x 8 organization and 5V-only supply Organized as 32K words by 8 bits, this SRAM presents a byte-wide parallel interface — straightforward to hook to an 8-bit microcontroller or as a data buffer in a legacy DSP system. ## Package and footprint — 28-TSOP I Housed in a 28-TSOP I package (0.465\" body width, 11.80 mm), this is a surface-mount device. The Tape & Reel suffix (ZXCT) means it ships on a reel for automated pick-and-place.","metaTitle":"Infineon CY7C199CN-12ZXCT 256Kbit Async SRAM, 12 ns","metaDescription":"Infineon CY7C199CN-12ZXCT 256Kbit (32K x 8) asynchronous SRAM with 12 ns access time, 4.5V-5.5V supply, 28-TSOP I.","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 - Asynchronous","Access Time":"12 ns","Memory Size":"256Kbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"28-TSSOP (0.465\\\", 11.80mm Width)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"CY7C199","Memory Organization":"32K x 8","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"28-TSOP I","Write Cycle Time - Word, Page":"12ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7200","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/002e486065fa853fa472de9cc9c294da.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy CY7C199CN-12ZXCT?","answer":"Submit an RFQ for current availability and pricing — stock is confirmed at quote time from surplus and new-old-stock inventory channels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C199CN-12ZXCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C199CN-12ZXCT 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}}