Genuine SIEMENS 6ES7953-8LL20-0AA0 SIMATIC S7 Micro Memory Card 8MB | S7-300 Series – Verified Source
The SIEMENS 6ES7953-8LL20-0AA0 is an 8 MB SIMATIC S7 Micro Memory Card designed for use with SIMATIC S7-300, C7, and ET 200 distributed I/O systems. As a non-volatile, battery-free storage medium, it provides reliable program and data retention without the risk of data loss during power interruptions — a critical requirement in continuous industrial process environments.
Konmask.com sources this component through verified industrial supply channels, ensuring authenticity and full functional integrity for your automation infrastructure.
Technical Specifications
| Part Number | 6ES7953-8LL20-0AA0 |
| Manufacturer | SIEMENS AG |
| Product Family | SIMATIC S7 Micro Memory Card |
| Memory Capacity | 8 MB |
| Memory Type | Flash EEPROM (non-volatile, battery-free) |
| Compatible Systems | SIMATIC S7-300, C7, ET 200 (with CPU interface) |
| Form Factor | SIMATIC Micro Memory Card (MMC) |
| Data Retention | 10 years (typical, without power) |
| Write Cycles | Up to 100,000 (typical) |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Dimensions (W×H×D) | Approx. 25 × 32 × 2.1 mm |
| Weight | Approx. 40 g (packaged) |
| MLFB / Order Number | 6ES7953-8LL20-0AA0 |
| Firmware Support | Compatible with STEP 7 V5.x and TIA Portal (S7-300 project types) |
Our 4-Step Quality Verification Process
Every SIEMENS component shipped from Konmask.com passes through a structured verification protocol before dispatch:
- Step 1 — Source Traceability: All units are procured from documented industrial supply channels. Supplier credentials and transaction records are retained on file.
- Step 2 — Physical Inspection: Label integrity, housing condition, connector pin alignment, and holographic markings are inspected against SIEMENS OEM standards.
- Step 3 — Functional Bench Test: Where applicable, memory cards are tested for read/write integrity and recognition by compatible S7-300 CPUs prior to packaging.
- Step 4 — Secure Packaging: Units are packed in anti-static ESD-safe materials with tamper-evident sealing to preserve integrity during international transit.
Key Features & Benefits
- Battery-Free Non-Volatile Storage: Eliminates battery maintenance overhead; program data is retained indefinitely without power.
- Large 8 MB Capacity: Supports complex user programs, data blocks, and firmware updates for demanding S7-300 applications.
- Plug-and-Play Compatibility: Direct insertion into S7-300 CPU MMC slot — no additional hardware or adapters required.
- High Write Endurance: Rated for up to 100,000 write cycles, suitable for applications with frequent program updates or data logging.
- Wide Temperature Tolerance: Operates reliably across industrial ambient conditions from 0°C to +60°C.
- STEP 7 & TIA Portal Compatible: Fully supported by SIEMENS standard engineering tools for seamless project download and CPU cloning.
Typical Applications
- SIMATIC S7-300 CPU program storage and backup (CPU 312, 314, 315, 317, 319 series)
- C7 compact controller memory expansion
- ET 200 distributed I/O with integrated CPU modules
- Machine tool controllers, conveyor automation, and process control panels
- Spare memory card for rapid CPU replacement and cloning in production environments
- Firmware update carrier for S7-300 CPU field upgrades
Compatible System Components
- CPUs: S7-300 CPU 312, 313C, 314, 314C-2, 315-2 DP, 315-2 PN/DP, 317-2 DP, 317-2 PN/DP, 319-3 PN/DP
- C7 Controllers: C7-626, C7-633, C7-634, C7-636, C7-626 DP
- ET 200 Modules: ET 200S CPU, ET 200pro CPU
- Programming Software: SIMATIC STEP 7 V5.4 and above; TIA Portal V13 and above (S7-300 project type)
- Programming Device: PG/PC with SIMATIC Manager or TIA Portal and MPI/PROFIBUS/Ethernet interface
Global Sourcing & Shipping Capabilities
- Stock Availability: Maintained inventory for immediate dispatch; lead time quotation available for bulk orders.
- Shipping Regions: Worldwide — including Asia-Pacific, Europe, Middle East, North America, and South America.
- Logistics Partners: DHL Express, FedEx International Priority, SF Express International, and sea freight for volume orders.
- Export Compliance: All shipments are accompanied by commercial invoices, packing lists, and certificates of origin as required by destination customs.
- Lead Time: In-stock orders typically dispatched within 1–3 business days. Contact us for urgent requirements.
Certifications & Compliance Statement
- CE Marking: Compliant with applicable EU directives as per SIEMENS OEM certification.
- RoHS Compliance: Manufactured in accordance with RoHS Directive 2011/65/EU (restriction of hazardous substances).
- ESD Sensitivity: Class 2 ESD-sensitive device — handle with appropriate ESD precautions.
- Konmask Quality Statement: Konmask.com does not sell counterfeit, refurbished-as-new, or unverified components. All products are represented accurately as to condition and origin.
How to Order
- Confirm Part Number: Verify 6ES7953-8LL20-0AA0 matches your CPU’s MMC slot specification and STEP 7 project requirements.
- Request a Quote: Contact us via email at [email protected] or WhatsApp/phone at +0086 19859288691 for current pricing and availability.
- Submit Purchase Order: Provide your company name, shipping address, required quantity, and preferred logistics method.
- Payment & Dispatch: We accept T/T bank transfer, PayPal, and other agreed payment terms. Dispatch confirmation and tracking number provided upon shipment.
- After-Sales Support: Technical assistance available post-delivery for installation verification and compatibility queries.
Authenticity & Trust FAQ
Q: How do I verify the authenticity of the 6ES7953-8LL20-0AA0 I receive?
A: Genuine SIEMENS MMCs carry a holographic label with the SIEMENS logo, a unique serial number, and the MLFB order number. You can cross-reference the serial number via SIEMENS Industry Online Support (support.industry.siemens.com).
Q: Is this a new or refurbished unit?
A: All units are clearly described as new or used/tested in the product listing. If not specified, contact us before ordering for a condition declaration.
Q: Can I return the product if it is incompatible or non-functional?
A: Yes. Konmask.com offers a return and inspection process for DOA (dead on arrival) or misrepresented items. Contact support within 7 days of receipt.
Q: Do you provide a datasheet or SIEMENS documentation?
A: Yes. The official SIEMENS product datasheet and manual are available upon request. Reference document: SIMATIC S7 Micro Memory Card — A5E00059722.
Q: Can you supply multiple units for a plant-wide upgrade?
A: Yes. Volume pricing is available for orders of 5 units or more. Contact us for a formal quotation.
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Contact: [email protected] | +0086 19859288691
