Siemens 6ES7954-8LC03-0AA0 SIMATIC S7 Memory Card 4MB 3.3V Flash

Industrial flash memory card for SIMATIC S7-1200, S7-1500 PLCs and SINAMICS drive systems, providing 4MB storage for program backup, firmware updates, and data logging in automation applications.

The Siemens 6ES7954-8LC03-0AA0 is a SIMATIC S7 memory card with 3.3V Flash EPROM technology and 4MB storage capacity, designed for S7-1x00 series CPUs and SINAMICS control units. It can be used as a program card (load memory expansion), a transfer card (program transfer, factory reset), or a firmware update card. The card is readable/writable via standard commercial card readers and offers rugged durability with minimum 500,000 write/delete cycles and 10-year data retention.

Applications

• Program storage and load memory expansion for S7-1200 and S7-1500 PLCs

• Firmware updates for SIMATIC controllers and SINAMICS drives

• Recipe management and data logging in production systems

• Equipment cloning and program transfer between controllers

• OEM machine backups and system recovery scenarios

Key Features

• 4MB Flash EPROM storage capacity

• 3.3V operating voltage for low power consumption

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

• 10-year data retention after final programming

• Compatible with S7-1200, S7-1500 and SINAMICS control units (CU320, etc.)

• Compact size: 32 × 24 × 2.1 mm (H × W × D)

• Can be used as program card, transfer card, or firmware update card

• Readable/writable via standard commercial card readers

Technical Specifications

• Manufacturer: Siemens

• Model: 6ES7954-8LC03-0AA0

• Product Type: SIMATIC S7 Memory Card

• Memory Technology: 3.3V Flash EPROM

• Storage Capacity: 4 MB

• Write/Delete Cycles (min.): 500,000

• Data Retention (min.): 10 years

• Voltage: 3.3V

• Dimensions (H × W × D): 32 × 24 × 2.1 mm

• Weight: approx. 0.003 kg (3 g)

• Operating Temperature: 0°C to 60°C

System Integration

• PLC Controllers: SIMATIC S7-1200, S7-1500, S7-300 series CPUs

• Drive Systems: SINAMICS control units (CU320, etc.)

• Applications: Load memory expansion, program transfer, firmware update, data logging

• Configuration: TIA Portal, STEP 7

Related Products

• PLC Controller: Siemens 6ES7215-1AG40-0XB0 S7-1200 CPU 1215C – system core

• PLC Controller: Siemens 6ES7515-2AM01-0AB0 S7-1500 CPU – high-performance alternative

• Memory Card: Siemens 6ES7954-8LC02-0AA0 – 4MB alternative variant

• SINAMICS Drive: Siemens SINAMICS S120 series – compatible drive system

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