{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"71V3558S133PFG","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"71V3558S133PFG","canonicalUrl":"https://icboms.com/renesas/71V3558S133PFG","factsUrl":"https://icboms.com/api/mcp/products/71V3558S133PFG","rawCanonicalId":null},"summary":{"shortDescription":"Renesas 71V3558S133PFG, synchronous ZBT SRAM, 4.5 Mbit, 256K x 18, 133 MHz clock, 4.2 ns access time, 3.3 V supply, 0°C to 70°C, 100-TQFP (14x14), surface mount.","salesMarkdown":"## Synchronous ZBT SRAM for high-speed cache and buffer applications The Renesas 71V3558S133PFG is a 4.5 Mbit synchronous SRAM organized 256K x 18, built on Zero Bus Turnaround (ZBT) architecture. It clocks at 133 MHz with a 4.2 ns access time. ## Temperature grade and supply — commercial indoor fit Rated 0°C to 70°C, this is a commercial-temperature part. It belongs in office networking gear, telecom indoor shelves, test equipment, and similar climate-controlled environments. ## Sourcing and lifecycle — active, no LTB pressure The 71V3558S133PFG carries an Active lifecycle status. There is no last-time-buy window, no NRND flag. For a BOM freeze, this part is safe to specify into production. No minimum volume commitment required to get a firm number.","metaTitle":"71V3558S133PFG SRAM 4.5Mbit 133 MHz 4.2 ns 100-TQFP","metaDescription":"71V3558S133PFG synchronous ZBT SRAM, 4.5Mbit (256K x 18), 133 MHz clock, 4.2 ns access, 3.3V, 0-70°C, 100-TQFP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Bulk","Technology":"SRAM - Synchronous, SDR (ZBT)","Access Time":"4.2 ns","Memory Size":"4.5Mbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"100-LQFP","Clock Frequency":"133 MHz","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"3.135V ~ 3.465V","Memory Organization":"256K x 18","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"100-TQFP (14x14)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.11","stockQuantity":0,"priceTiers":[{"qty":74,"price":"$4.11000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f215e63550592a192ce1bb04318c59ff.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is 71V3558S133PFG obsolete or nearing end-of-life?","answer":"No. The lifecycle status is Active. There is no end-of-life notice, no last-time-buy window. It is safe for new designs and production BOMs."},{"question":"What is the access time of 71V3558S133PFG?","answer":"The access time is 4.2 ns. Combined with the 133 MHz clock, that gives roughly half a cycle of margin for bus timing closure."},{"question":"Can 71V3558S133PFG replace 71V3558S166PFG or similar?","answer":"The 71V3558S166PFG runs at 166 MHz with a faster access time. The 133 MHz variant is a lower-speed-grade sibling in the same package and pinout. If your controller can tolerate the slower clock and access time, the 133PFG is a drop-in replacement. Verify timing closure on your bus before swapping."},{"question":"What is the equivalent part for 71V3558S133PFG if out of stock?","answer":"The closest pin-compatible alternative is the 71V3558S166PFG (166 MHz, same 100-TQFP footprint). Other vendors' 256K x 18 ZBT SRAMs in 100-TQFP may also fit, but pinout and timing parameters must be verified against the Renesas datasheet."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/71V3558S133PFG","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/71V3558S133PFG when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-13T20:48:01.487Z","lastPublished":"2026-07-13T20:48:01.487Z","indexable":true}}