Siemens SIMATIC S7 Micro Memory Card, 6ES7953-8LL20-0AA0, 3.3 V NFLASH, 2 MB for S7-300/C7/ET 200.
The Siemens 6ES7953-8LL20-0AA0 is a SIMATIC S7 Micro Memory Card for S7-300, C7, and ET 200 systems, using 3.3 V NFLASH technology with 2 MB capacity.
This card fits the memory slot of S7-300 CPUs, C7 compact units, and ET 200 distributed I/O stations. It stores the user program and configuration data; no battery backup needed since it uses non-volatile flash.
It has 2 MB of NFLASH memory, operating at 3.3 V.
It is designed for SIMATIC S7-300, C7, and ET 200 systems.
Alternative models and sibling configurations in the same Siemens series. For obsolete or discontinued parts, these models can serve as compatible replacements or functional alternatives for plant maintenance.
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