{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7953-8LJ11-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7953-8LJ11-0AA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7953-8LJ11-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7953-8LJ11-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7 Micro Memory Card, 6ES7953-8LJ11-0AA0, for S7-300/C7/ET 200S IM151 CPU, 3.3 V Nflash, 512 KB.","salesMarkdown":"The 6ES7953-8LJ11-0AA0: The 512 KB capacity is the key decision point. For a typical S7-300 application, this holds a medium-sized logic program with a few data blocks — think a small conveyor line or a pump skid. If your project runs a larger CPU like a 315-2DP with extensive function blocks and PID loops, you'll want to step up to a 2 MB or 4 MB card. The 3.3 V Nflash interface is standard for these CPUs, so no compatibility surprises there. This card lives inside the CPU slot of an S7-300 rack, a C7 compact unit, or an ET 200S IM151 interface module. It's the program carrier for those controllers, which are common in mid-range automation for material handling, packaging, water treatment, and machine tools. The card itself is swapped in seconds — power down, pop the old one out, slide the new one in, power up and download.","metaTitle":"Siemens 6ES7953-8LJ11-0AA0 SIMATIC S7 Micro Memory Card, 512","metaDescription":"Siemens 6ES7953-8LJ11-0AA0 SIMATIC S7 Micro Memory Card for S7-300/C7/ET 200S IM151 CPU. 3.3 V Nflash, 512 KB. Mature lifecycle stage. Sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC Accessories"],"specifications":{"lifecycle_stage":"mature"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$80.01","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=243622&mlfb=6ES7953-8LJ11-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7953-8LJ11-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the memory capacity and type?","answer":"It is a 512 KB Nflash memory card operating at 3.3 V. That capacity is suited for medium-sized S7-300 programs with moderate data block requirements."},{"question":"Which CPUs is this card compatible with?","answer":"It fits SIMATIC S7-300 CPUs, C7 compact units, and ET 200S IM151 interface modules. The 3.3 V Nflash interface is standard across those platforms."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7953-8LJ11-0AA0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/6ES7953-8LJ11-0AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}