{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C199C-12VC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C199C-12VC","canonicalUrl":"https://icboms.com/infineon/CY7C199C-12VC","factsUrl":"https://icboms.com/api/mcp/products/CY7C199C-12VC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies CY7C199C-12VC asynchronous SRAM, 256Kbit (32K x 8), 12 ns access time, 4.5V-5.5V supply, 0°C to 70°C, 28-SOJ package, Tube.","salesMarkdown":"## Device identity and bus-fit The CY7C199C-12VC is a 256Kbit asynchronous SRAM organized as 32K x 8 bits, with a parallel memory interface and a 12 ns access time. The 12 ns access time sets the window the memory controller must budget for address-to-data valid — at a 33 MHz bus clock (30 ns period), the 12 ns access leaves 18 ns for controller overhead and board trace delay, which is comfortable for most legacy 5 V systems. The commercial temperature range (0°C to 70°C) suits indoor equipment with controlled ambient — think benchtop instruments, networking gear in conditioned racks, or test equipment. For extended or industrial temperature, a different suffix variant would be needed. The J-lead footprint is less common in modern high-density designs but was a standard for mid-density SRAMs — the leads are formed under the body, saving board area compared to an SOIC. Rework requires a hot-air station with a nozzle that clears the body height; the J-leads are less accessible to a standard soldering iron tip than gull-wing leads. Supplied in Tube packaging, it is suited for manual assembly or low-volume pick-and-place where the tube feeds into a vibratory feeder or hand-load station. Tape-and-reel would be the alternate packaging for high-volume automated lines. ## Lifecycle reality — obsolete, sourced to order Sourcing is handled on a per-RFQ basis: quantities are confirmed at quote time, and the supply posture is lot-specific from surplus or broker inventory. No stock-holding or lead-time claim is made here; availability is verified when you request a quote. If your design can tolerate a board spin, a modern 3.3 V 256Kbit asynchronous SRAM in a TSOP or BGA package would be the functional migration path — but that requires a supply-voltage change and a new PCB footprint. For legacy production runs, the CY7C199C-12VC remains orderable through the channel described above.","metaTitle":"CY7C199C-12VC Infineon SRAM, 256Kbit, 12 ns, 28-SOJ","metaDescription":"CY7C199C-12VC Infineon 256Kbit asynchronous SRAM, 12 ns access time, 5V supply, 28-SOJ.","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":"12 ns","Memory Size":"256Kbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"28-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":"CY7C199","Memory Organization":"32K x 8","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"28-SOJ","Write Cycle Time - Word, Page":"12ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b500fa0ee687a89ce00255378ab4eee0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy CY7C199C-12VC and what is the lead time?","answer":"Submit an RFQ for your target quantity to get a real-time response."},{"question":"What is the closest pin-compatible alternative to CY7C199C-12VC?","answer":"Any alternative would require a different package, supply voltage, or pinout — a board spin is necessary. For legacy BOM support, sourcing the original CY7C199C-12VC through independent channels is the direct path."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C199C-12VC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C199C-12VC when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:14:56.160Z","lastPublished":"2026-07-21T02:14:56.160Z","indexable":true}}