{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C199-15PC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C199-15PC","canonicalUrl":"https://icboms.com/infineon/CY7C199-15PC","factsUrl":"https://icboms.com/api/mcp/products/CY7C199-15PC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon (Cypress) CY7C199-15PC, 256Kbit (32K x 8) Asynchronous SRAM, 15 ns access time, 4.5V to 5.5V supply, 28-pin PDIP (0.300\"), 0°C to 70°C commercial temperature.","salesMarkdown":"The CY7C199-15PC: This is a volatile, byte-wide static RAM intended for use as fast scratchpad, cache, or working memory in legacy digital systems — think old 8-bit microprocessor boards, embedded controllers, test equipment, or retrocomputing builds that need a 5 V tolerant, no-refresh memory with sub-20 ns cycle times. 15 ns read and write cycle times match the access time spec. ## Pin compatibility and replacement options The 28-pin DIP (0.300\") footprint is a JEDEC-standard pinout shared by many 32K x 8 asynchronous SRAMs from multiple vendors. Any 28-pin DIP SRAM with the same organization (32K x 8) and a 5 V supply will be pin-compatible — the catch is access time. If your board was designed for the 15 ns speed grade, a slower part (20 ns, 25 ns) may introduce wait-state failures or marginal timing. Faster parts (10 ns, 12 ns) work electrically but may draw slightly higher standby current. There is no single official successor from Infineon; the replacement path depends on whether the board can accept a surface-mount SOIC-28 or TSOP-II package with an adapter, or whether a NOS (new old stock) DIP part is the only drop-in answer. 28-pin PDIP body is 0.300\" wide. Through-hole mounting. Confirm lead finish for RoHS compliance.","metaTitle":"CY7C199-15PC 256Kbit Async SRAM, 15 ns, 28-PDIP","metaDescription":"Infineon (Cypress) CY7C199-15PC 256Kbit (32K x 8) asynchronous SRAM, 15 ns access time, 4.5V-5.5V, 28-pin DIP. 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":"15 ns","Memory Size":"256Kbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Through Hole","Package / Case":"28-DIP (0.300\\\", 7.62mm)","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-PDIP","Write Cycle Time - Word, Page":"15ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/db4c3dbfc281eb6c685e985fa829ece5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is a direct replacement or equivalent for the CY7C199-15PC?","answer":"There is no single official replacement from Infineon. Any 32K x 8 asynchronous SRAM in a 28-pin DIP (0.300\") with a 5 V supply and 15 ns or faster access time is pin-compatible. Common alternatives include parts from ISSI, Alliance Memory, and Renesas, but verify the access time matches your timing budget — a slower part may cause bus errors."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C199-15PC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C199-15PC 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}}