{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C199D-10VXI","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C199D-10VXI","canonicalUrl":"https://icboms.com/infineon/CY7C199D-10VXI","factsUrl":"https://icboms.com/api/mcp/products/CY7C199D-10VXI","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C199D-10VXI asynchronous SRAM, 256Kbit (32K x 8), 10 ns access time, parallel interface, 4.5V–5.5V supply, -40°C to 85°C, 28-SOJ package, Tube.","salesMarkdown":"## 256 Kbit asynchronous SRAM for 5 V legacy buses Housed in a 28-SOJ surface-mount package, this part is suited for high-speed cache, buffer memory, and microcontroller data storage in legacy 5 V digital systems where fast random access is required. ## 10 ns access time — timing closure for the bus For a 33 MHz bus with a 30 ns cycle, this leaves 20 ns for address decode, setup, and hold — enough margin for most CPLD-based glue logic. If your system runs a 50 MHz bus (20 ns cycle), the 10 ns access consumes half the cycle, so check your timing budget against the address-to-data path. ## 5 V-only supply — not 3.3 V compatible It is not designed for 3.3 V operation — driving the pins at 3.3 V logic levels will not guarantee correct read or write thresholds. If your system is 3.3 V, the CY7C1399BN-12VXI is a 3.0 V part in the same 32 K x 8 organization, though with a 12 ns access time. The 5 V rail also means the I/O levels are 5 V tolerant only; level translation is needed when interfacing with a 3.3 V controller. ## Industrial temperature and 28-SOJ footprint The 28-SOJ package has a 0.300-inch body width with J-bend leads on 1.27 mm pitch — a common footprint shared with many 28-pin SOJ SRAMs, so board layout reuse across density upgrades is straightforward. The part ships in Tube, which is typical for prototype and low-volume builds; for reel quantities, check the CY7C199D-10VXIT variant. For production planning, the base part number CY7C199 spans multiple speed and temperature grades, so if a future speed or package change is needed, a pin-compatible variant within the family may be available without a board spin.","metaTitle":"Infineon CY7C199D-10VXI SRAM, 256Kbit, 10 ns, 28-SOJ","metaDescription":"Infineon CY7C199D-10VXI asynchronous SRAM, 256Kbit (32K x 8), 10 ns access time, 4.5V-5.5V, -40°C to 85°C, 28-SOJ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Mfr":"Infineon Technologies","Series":"-","Package":"Tube","Technology":"SRAM - Asynchronous","Access Time":"10 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":"Active","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"CY7C199","Memory Organization":"32K x 8","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"28-SOJ","Write Cycle Time - Word, Page":"10ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.0100","priceTiers":[{"qty":1,"price":"$3.01000","currency":"USD"},{"qty":10,"price":"$2.70700","currency":"USD"},{"qty":25,"price":"$2.66480","currency":"USD"},{"qty":50,"price":"$2.65800","currency":"USD"},{"qty":100,"price":"$2.37500","currency":"USD"},{"qty":250,"price":"$2.29700","currency":"USD"},{"qty":500,"price":"$2.28862","currency":"USD"},{"qty":1000,"price":"$2.13112","currency":"USD"},{"qty":5000,"price":"$1.92902","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/911146cb656cbc78cac09fc11dca7454.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CY7C199D-10VXI/alternatives.json"},"ai":{"faq":[{"question":"How does CY7C199D-10VXI compare to CY7C1399BN-12VXI?","answer":"The CY7C1399BN-12VXI is a 3.0 V part with the same 32 K x 8 organization but a 12 ns access time. The CY7C199D-10VXI runs at 5 V and is 2 ns faster. They are not pin-compatible due to different supply rails, so a board redesign is needed to switch between them."},{"question":"Where can I download the CY7C199D-10VXI datasheet?","answer":"The datasheet is available from Infineon's website under the base part number CY7C199. The full document covers all speed and temperature variants in the family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C199D-10VXI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C199D-10VXI when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}