{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TMS29F040-90C5FML","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TMS29F040-90C5FML","canonicalUrl":"https://icboms.com/texas-instruments/TMS29F040-90C5FML","factsUrl":"https://icboms.com/api/mcp/products/TMS29F040-90C5FML","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TMS29F040-90C5FML, 4-Mbit (512K x 8) parallel NOR Flash memory, 90 ns access time, PQCC-32 package, active lifecycle.","salesMarkdown":"## 4-Mbit parallel NOR Flash in a PQCC-32 footprint The Texas Instruments TMS29F040-90C5FML is a 4-Mbit parallel NOR Flash memory organized as 512K words of 8 bits each, with a 90 ns access time. It comes in a 32-lead plastic leaded chip carrier (PQCC-32), the same footprint as a standard PLCC-32 socket or solder pad. This is a legacy parallel-interface part suited for code storage or data logging in embedded systems that already use a 5 V tolerant bus and a byte-wide memory map. ## 90 ns access time — timing margin on a legacy bus The 90 ns access time is the key timing parameter: it defines how quickly the memory outputs valid data after the address is latched. For a system with a 10 MHz to 12 MHz bus clock (80–100 ns cycle), this part leaves little margin for additional decode logic or long trace delays. It is a direct fit for designs originally specified for 90 ns or slower parallel Flash, but a 70 ns or 55 ns part would be needed if the bus runs faster or if you add address buffers.","metaTitle":"TMS29F040-90C5FML 512Kx8 Flash, 90ns, PQCC32","metaDescription":"Texas Instruments TMS29F040-90C5FML 4-Mbit (512K x 8) parallel NOR Flash with 90 ns access time in PQCC-32 package. Active lifecycle, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"series":"*","package_type":"Bulk","product_status":"Active","lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.88","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1c760b420a05791f8223a5a4003232c1.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TMS29F040-90C5FML","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TMS29F040-90C5FML 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}}