{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7C1019B-12ZXC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7C1019B-12ZXC","canonicalUrl":"https://icboms.com/infineon/CY7C1019B-12ZXC","factsUrl":"https://icboms.com/api/mcp/products/CY7C1019B-12ZXC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon CY7C1019B-12ZXC, 1Mbit asynchronous SRAM, 128K x 8 organization, 12 ns access time, parallel interface, 4.5V-5.5V supply, 0°C-70°C, 32-SOIC (0.400\") wide body, surface mount, tray.","salesMarkdown":"## 1Mbit asynchronous SRAM with 12 ns access — what the timing means for the bus The Infineon CY7C1019B-12ZXC is a 1Mbit asynchronous SRAM organized as 128K x 8 bits, with a 12 ns access time and a 12 ns write cycle time. The 12 ns access time means the part can complete a read operation within 12 ns of the address being valid — fast enough to interface with many 5V CPLDs, legacy ASICs, and 8-bit microcontrollers without inserting wait states, as long as the bus timing budget accounts for address-to-data setup. The parallel interface is straightforward: no clock, no burst mode — the chip select and output enable gates the data bus directly. If your system runs a mixed 3.3 V/5 V bus, the SRAM's inputs are 5 V-tolerant only within its own supply range — level translation on the address and control lines is required when the controller is 3.3 V. ## Obsolete — planning the BOM line The CY7C1019B-12ZXC carries an official product status of Obsolete. No last-time-buy window or successor part number is recorded in the available lifecycle data. A design that needs ongoing production should plan for a pin-compatible replacement or a board respin to a current-generation asynchronous SRAM. ## Package and footprint — 32-SOIC wide body The package is a 32-SOIC with a 0.400-inch (10.16 mm) body width, surface mount. This is not the same footprint as the narrow 0.300-inch SOIC-32 or the thin TSOP-I variants — a board layout using this part cannot drop in a narrow SOIC without a PCB change. The shipping medium is tray, not tape and reel, which may affect pick-and-place feeder setup for high-volume lines.","metaTitle":"Infineon CY7C1019B-12ZXC 1Mbit Async SRAM, 12 ns, 32-SOIC","metaDescription":"Infineon CY7C1019B-12ZXC 1Mbit asynchronous SRAM, 12 ns access time, 4.5V-5.5V supply, 0°C-70°C, 32-SOIC.","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":"Tray","Technology":"SRAM - Asynchronous","Access Time":"12 ns","Memory Size":"1Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"32-SOIC (0.400\\\", 10.16mm Width)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"CY7C1019","Memory Organization":"128K x 8","Operating Temperature":"0°C~70°C(TA)","Supplier Device Package":"32-TSOP II","Write Cycle Time - Word, Page":"12ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8efa671d88ac2b474a704bd14e048ee2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is CY7C1019B-12ZXC obsolete?","answer":"Yes, the CY7C1019B-12ZXC is officially obsolete. There is no recorded last-time-buy window or direct successor. Sourcing is limited to the surplus and broker channel."},{"question":"What replaces CY7C1019B-12ZXC?","answer":"No official replacement order code is recorded in the available lifecycle data. A pin-compatible replacement would need to be a 128K x 8 asynchronous SRAM in a 32-SOIC wide body (0.400-inch) with a 12 ns or faster access time and 5 V supply. Several manufacturers offer functionally similar parts, but pinout and timing compatibility must be verified against the original datasheet before committing a board layout."},{"question":"Is CY7C1019B-12ZXC compatible with 5V supply?","answer":"Yes. It is not a 3.3 V part — do not run it below 4.5 V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7C1019B-12ZXC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7C1019B-12ZXC 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}}