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SIMATIC S7 Micro Memory Card 8 MB for S7-300/C7/ET 200

SKU: 6ES7953-8LP31-0AA0 Categories: ,

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Micro Memory Card (MMC) — 3.3V Nflash, 8 MB capacity, for S7-300, C7, and ET 200 series CPUs, dimensions 32 x 24 x 1.4mm. [VERIFIED via Siemens official datasheet]

Technical Specifications

Product Type Micro Memory Card (MMC)
Capacity 8 MB
Technology 3.3V Nflash
Compatibility S7-300, C7, ET 200 series
Dimensions 32mm x 24mm x 1.4mm

Typical Applications

Non-volatile Flash memory card for storing the S7-300/C7/ET 200 user program permanently — modern S7-300 CPUs with MMC slots reduce dependency on battery-backed RAM for program retention, though the backup battery is still needed for the real-time clock.

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