{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"71256SA20PZG","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"71256SA20PZG","canonicalUrl":"https://icboms.com/renesas/71256SA20PZG","factsUrl":"https://icboms.com/api/mcp/products/71256SA20PZG","rawCanonicalId":null},"summary":{"shortDescription":"Renesas Electronics 71256SA20PZG asynchronous SRAM, 256Kbit (32K x 8), 20 ns access time, parallel interface, 4.5-5.5V supply, 28-TSSOP (0.465\", 11.80mm Width), Bulk.","salesMarkdown":"## 256Kbit asynchronous SRAM for 5V bus systems The Renesas 71256SA20PZG is a 256 Kbit asynchronous SRAM organized as 32K words by 8 bits. With a 20 ns access time and matching 20 ns write cycle, this part keeps up with fast 8-bit microcontrollers and DSPs that need zero-wait-state SRAM at clock rates up to 50 MHz. ## Timing margin and bus interface For a processor running at 50 MHz with a 20 ns cycle, this SRAM meets the setup time without an extra wait state — the address-to-data path fits within one clock period. As an asynchronous device, it needs no external clock — the chip enable and output enable pins gate the data bus directly. This simplifies the PCB layout because there is no clock trace to route and no PLL to lock. ## Package and board integration Housed in a 28-TSSOP package (0.465\" body width, 11.80 mm), the part is surface-mount with a 0.65 mm pin pitch typical for this form factor. The 28-TSOP supplier device package is the same mechanical outline — the two names refer to the same footprint. Decoupling with a 0.1 µF ceramic capacitor close to each VDD pin is standard practice for this access time. ## Temperature grade and operating range It is suited for office equipment, test instrumentation, and industrial control panels that stay within indoor climate — not for extended outdoor or under-hood automotive use. The memory is volatile — data is retained only while power is applied. For non-volatile storage in the same socket, a battery-backed SRAM module or an FRAM would be the alternative, but that changes the pinout and supply requirements. ## Sourcing and lifecycle status Supplied in Bulk packaging — not tape-and-reel — which means the parts ship in tubes or trays. For automated pick-and-place, a tube-to-reel transfer or a separate tape-and-reel order variant may be needed if the line is set up for reel feed.","metaTitle":"Renesas 71256SA20PZG 256Kbit Async SRAM, 20 ns, 28-TSSOP","metaDescription":"Renesas 71256SA20PZG 256Kbit (32K x 8) asynchronous SRAM, 20 ns access time, 4.5-5.5V, 28-TSSOP. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Package":"Bulk","Technology":"SRAM - Asynchronous","Access Time":"20 ns","Memory Size":"256Kbit","Memory Type":"Volatile","Memory Format":"SRAM","Mounting Type":"Surface Mount","Package / Case":"28-TSSOP (0.465\\\", 11.80mm Width)","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Memory Organization":"32K x 8","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"28-TSOP","Write Cycle Time - Word, Page":"20ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.8","stockQuantity":22,"priceTiers":[{"qty":113,"price":"$2.80000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/26eb1e04eec99dd81aae702092b2d530.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the access time and why does it matter for my bus timing?","answer":"The 71256SA20PZG has a 20 ns access time and a matching 20 ns write cycle time. This means the SRAM can complete a read or write operation within 20 ns of the address being valid, which allows a 50 MHz processor to access it without inserting wait states."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/71256SA20PZG","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/71256SA20PZG 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}}