{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74ACT7201LA25DVR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74ACT7201LA25DVR","canonicalUrl":"https://icboms.com/texas-instruments/SN74ACT7201LA25DVR","factsUrl":"https://icboms.com/api/mcp/products/SN74ACT7201LA25DVR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN74ACT7201LA25DVR asynchronous FIFO memory, 512 x 9 organization, 25 ns access time, 28.5 MHz data rate, 28-SOIC surface-mount package, Bulk.","salesMarkdown":"## 512 x 9 asynchronous FIFO in 28-SOIC The Texas Instruments SN74ACT7201LA25DVR is a 4.5 Kbit (512 x 9) asynchronous FIFO memory in a 28-SOIC surface-mount package. As an asynchronous FIFO, it uses independent read and write control signals rather than a shared clock — the 25 ns access time sets the minimum read-cycle period, and the 28.5 MHz data rate defines the maximum write throughput. This makes it a fit for bridging data between two asynchronous clock domains where the latency budget is tight. ## 25 ns access time and retransmit capability The 25 ns access time is the time from the read-enable edge to valid data on the output bus — in a system where the downstream logic samples on the same edge, this sets the setup-time margin at the receiver. The 28.5 MHz data rate corresponds to a 35 ns write-cycle period, so the FIFO can accept a new word every 35 ns on the write side. Retransmit capability allows the read pointer to be reset to the first unread word without clearing the entire FIFO — useful when a data packet must be re-read after a CRC error. The device also supports depth and width expansion, so multiple parts can be cascaded for deeper or wider buffers without external logic. Maximum supply current is 125 mA — this is the total current drawn from the 5 V rail under worst-case conditions. The 512 x 9 organization stores nine bits per word, so the ninth bit can serve as a parity or tag bit alongside the eight data bits. ## Active lifecycle and 28-SOIC board integration The 28-SOIC package has a standard 1.27 mm pitch and 300-mil body width — a common footprint that routes easily on two-layer boards.","metaTitle":"SN74ACT7201LA25DVR Texas Instruments FIFO, 512x9 Async, 25ns","metaDescription":"Texas Instruments SN74ACT7201LA25DVR asynchronous FIFO, 512 x 9 organization, 25 ns access time, 28-SOIC. Active lifecycle. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Bulk","Function":"Asynchronous","Data Rate":"28.5MHz","Access Time":"25ns","Memory Size":"4.5K (512 x 9)","FWFT Support":"No","Mounting Type":"Surface Mount","Expansion Type":"Depth, Width","Package / Case":"28-SOIC","Bus Directional":"Uni-Directional","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5 V ~ 5.5 V","Operating Temperature":"0°C ~ 70°C","Retransmit Capability":"Yes","Current - Supply (Max)":"125mA","Supplier Device Package":"28-SOIC","Programmable Flags Support":"No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.01","stockQuantity":0,"priceTiers":[{"qty":100,"price":"$3.01000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/05581be0ff288c0a9612990d00af6629.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the access time of the SN74ACT7201LA25DVR?","answer":"The access time is 25 ns. This is the maximum time from the read-enable assertion to valid data on the output pins — the key parameter for read-cycle timing closure."},{"question":"What is the memory organization of this FIFO?","answer":"The FIFO is organized as 512 words by 9 bits (4.5 Kbit total,). The ninth bit can be used for parity, tag, or control data alongside the eight-bit data word."},{"question":"Does the SN74ACT7201LA25DVR support retransmit?","answer":"Yes, it has retransmit capability. The read pointer can be reset to the first unread word without clearing the FIFO, allowing re-reading of a data packet."},{"question":"What package and supply voltage does this part use?","answer":"Bulk packaging means tubes, not tape-and-reel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74ACT7201LA25DVR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74ACT7201LA25DVR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}