Siemens Simatic 6ES7 953-8LG11-0AA0 Micro Memory Card 6ES7953-8LG11-0AA0

SKU 6ES7953-8LG11-0AA0

The Siemens SIMATIC S7 MMC 4 MB (part number 6ES7953-8LG11-0AA0) acts as the primary external load memory medium for modern SIMATIC S7-300 automation systems and compact PLCs. Because S7-300 CPUs require an MMC for operation, this memory card ensures secure bootup, stable execution, and full data retention during power outages.

Manufacturer

SIEMENS

Manufacturer material ID

6ES7953-8LG11-0AA0

Category

PLC

HS code

85235110

UNSPSC

32151703

Net weight

0.03

Country of origin

DE

Availability

READY TO SHIP

Highlights

Product Line SIMATIC S7 / Micro Memory Card (MMC)
Part Number (MLFB) 6ES7953-8LG11-0AA0 (6ES79538LG110AA0)
Memory Size 4 Megabytes (4 MB)
Memory Type Flash-EPROM
Data Retention Minimum 10 years at ambient operating temperature
Write Cycles At least 100,000 write/erase operations
Compatibility Siemens S7-300 CPUs, ET 200S/200M CPUs, SIMATIC C7
Dimensions (W x H x D) 24 mm x 32 mm x 1.4 mm

Additional information

Never format a Siemens SIMATIC S7 Micro Memory Card using standard Windows PC card readers or standard OS formatting tools. Doing so will corrupt the custom Siemens internal file structure and permanently render the MMC unusable in SIMATIC PLCs. Always use a Siemens PG programmer or perform formatting strictly within STEP 7 / TIA Portal.