Product Overview

SIMATIC S7 Memory Card – 4 MB (6ES7954-8LC04-0AA0)
A high-reliability 3 V Flash-EPROM memory card designed for use in SIMATIC S7-1×00 CPUs or SINAMICS drives. Offers compact, robust data storage for automation applications.
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Technical Specifications

Memory Type: Flash-EPROM (N-Flash), 3 V
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Parmley Graham

Capacity: 4 MB (approx. 4,000 kB)
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Parmley Graham

Endurance: Minimum 500,000 write/erase cycles; data retention of at least 10 years (with reduced cycle scenarios retaining data for even longer)
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Dimensions: 24 mm (W) × 32 mm (H) × 2.1 mm (D)
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Weight: Approximately 3 g (some sources list ~0.018 kg = 18 g; likely packaging)
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Lifecycle & Logistics

Status: Active product (PLM: PM300)
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Lead Time: Ships ex-works in 1 day
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Weight (logistics): 0.018 kg; Packaging dimensions: 9.20 × 11.50 × 0.32 cm
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Country of Origin: Germany
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Compliance & Classification

RoHS: Compliant since February 16, 2023
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WEEE: Take-back obligation applies in applicable regions
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REACH (Art. 33): Duty to inform; no SVHCs currently identified
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Classification Codes:

eClass (6-14): 27-24-22-12

ETIM (7-9): EC000192
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Engineering Insights

Reliable Long-Term Memory
With a guaranteed 500k write cycles and 10 years of data retention, this memory card ensures dependable program storage—even under extensive operational reuse.

Compact & Lightweight
Its slim form factor (24 × 32 × 2.1 mm) and minimal mass (~3 g) streamline installation and minimize footprint within control systems.

Versatile Compatibility
Suitable for both SIMATIC S7-1×00 CPUs and SINAMICS to serve as reliable backup or charge memory.

Rapid Availability
With a one-day ex-works delivery, it supports swift system deployment or timely maintenance.

Regulatory Adherence
Fully RoHS and WEEE compliant, with transparent REACH communication—ideal for modern, eco-conscious automation setups.

Suggested Product Page Description (Engineer Perspective)

SIMATIC S7 Memory Card – 4 MB (6ES7954-8LC04-0AA0)
A compact and robust Flash-EPROM memory card delivering reliable program storage for SIMATIC S7-1×00 controllers and SINAMICS automation systems.

Key Technical Highlights

Memory: 4 MB Flash-EPROM, 3 V

Durability: ≥ 500,000 write/erase cycles; ≥ 10-year data retention

Size/Weight: 24 × 32 × 2.1 mm; ~3 g

Logistics: Ships ex-works within 1 day; origin Germany

Compliance & Support

RoHS-compliant (since Feb 2023), WEEE returnable, REACH-informed

Classifications: eClass 27-24-22-12 | ETIM EC000192