6ES7954-8LE04-0AA0 SIMATIC S7 Memory Card 12MB Flash | Siemens

The Original New Siemens 6ES7954-8LE04-0AA0 is a 12 MB SIMATIC S7 memory card designed for S7-1x00 CPU and SINAMICS drive systems. Utilising 3.3 V Flash-EPROM technology, it provides non-volatile storage for programs, configuration data, and firmware, with a minimum of 500,000 erase/write cycles and up to 10 years of data retention after final programming. This card is the direct successor to the 6ES7954-8LE03-0AA0 and is mechanically and functionally interchangeable, making it a reliable spare-part solution for maintaining existing S7-1200 and S7-1500 automation systems.

Core Engineering Highlights:
12 MB memory capacity | Flash-EPROM memory type | 3.3 V operating voltage | Minimum 500,000 erase/write cycles | Up to 10 years data retention | 24 × 32 × 2.1 mm | Approx. 3 g weight | For SIMATIC S7-1x00 CPU and SINAMICS

Key Features:

• Original New Siemens 6ES7954-8LE04-0AA0 memory card

• 12 MB Flash-EPROM storage for programs and data

• Designed for SIMATIC S7-1x00 CPUs and SINAMICS drive systems

• Minimum 500,000 erase/write cycles for long service life

• Data retention of up to 10 years after final programming (1 year if erase/write cycles exceed 450,000)

• Direct replacement for the discontinued 6ES7954-8LE03-0AA0

• Compact dimensions: 24 mm width × 32 mm height × 2.1 mm depth

• Lightweight at approximately 3 g

• EU and UK declarations of conformity available

Applications:

• Program storage for SIMATIC S7-1200 and S7-1500 CPUs

• Parameter and configuration storage for SINAMICS drives

• Firmware updates and system backups

• Spare-part replacement for existing S7-1x00 installations

• Data archiving in industrial automation systems

• Maintaining legacy S7 systems requiring the 12 MB card size

Technical Specifications:

System Compatibility:

• Designed for use with SIMATIC S7-1200 and S7-1500 CPU families.

• Compatible with SINAMICS drive systems that support SIMATIC memory card-based parameter storage.

• Direct replacement for 6ES7954-8LE03-0AA0 and 6ES7954-8LE02-0AA0; same installation dimensions and functionality.

• For compatibility confirmation with specific CPU or drive models, refer to the respective Siemens system manual.

Related Products:

• 6ES7954-8LC04-0AA0 – SIMATIC Memory Card, 4 MB

• 6ES7954-8LF04-0AA0 – SIMATIC Memory Card, 24 MB

• 6ES7954-8LL04-0AA0 – SIMATIC Memory Card, 256 MB

• 6ES7954-8LP04-0AA0 – SIMATIC Memory Card, 2 GB

• 6ES7954-8LT04-0AA0 – SIMATIC Memory Card, 32 GB

• 6ES7954-8LE03-0AA0 – Predecessor 12 MB card (discontinued; replaced by current model)

PLC ERA is an independent industrial automation distributor supplying genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. Siemens, SIMATIC, and SINAMICS are trademarks of Siemens AG.