Siemens 6ES7953-8LF31-0AA0 SIMATIC S7 64KB Micro Memory Card

Overview

SIEMENS SIMATIC S7

6ES7953-8LF31-0AA0 SIMATIC S7 64KB Micro Memory Card

A 3.3 V SIMATIC flash memory card with 64 KB capacity, at least 100,000 write/delete operations and a minimum ten-year data-retention period after final programming.

At a Glance

Brand	Siemens
Model	6ES7953-8LF31-0AA0
Product Type	Micro Memory Card
Core Function	Nonvolatile controller memory
Application	S7-300, C7 and compatible ET 200 systems

Program-memory medium

Flash-EPROM retains the programmed data.

Specified endurance

At least 100,000 write/delete operations are supported.

Small physical format

The card measures 24 × 32 × 1.4 mm and weighs approximately 2 g.

Product Overview

6ES7953-8LF31-0AA0 provides removable flash storage for compatible SIMATIC S7-300, C7 and ET 200 equipment.

Its 64 KB capacity suits projects whose memory requirement fits this card, with a specified minimum retention period of ten years after the last programming operation.

Ordering focus: Match the SIMATIC Micro Memory Card interface and the project memory requirement, including the 64 KB capacity and 3.3 V memory technology.

Key Functions

Retain the programmed contents

Flash-EPROM provides storage with a minimum ten-year retention period following final programming.

Support repeated engineering writes

A minimum endurance of 100,000 write/delete operations supports repeated project loading within the specified limit.

Fit the controller memory slot

The 24 × 32 × 1.4 mm card provides the compact physical format for the supported SIMATIC equipment.

Official Specifications

Memory Capacity	64 kbyte
Memory Technology	Flash-EPROM, 3.3 V Nflash
Minimum Write/Delete Endurance	100,000 operations
Minimum Data Retention	10 years after the final programming operation
Overall Dimensions	24 × 32 × 1.4 mm (W × H × D)
Approximate Card Weight	2 g

Official source:Siemens Micro Memory Card Data Sheet

Frequently Asked Questions

Can I select 6ES7953-8LF31-0AA0 for a project that needs more than 64 KB of card memory?

The card provides 64 kbyte, so the project must fit within that capacity.

Will 6ES7953-8LF31-0AA0 retain its contents after the last programming operation?

The specified minimum data-retention period is ten years after final programming.

How many rewrite cycles can I plan for with 6ES7953-8LF31-0AA0?

The minimum specified endurance is 100,000 write/delete operations.

Which memory technology should the slot support for 6ES7953-8LF31-0AA0?

The card uses 3.3 V Nflash with Flash-EPROM storage.

Can I use 6ES7953-8LF31-0AA0 in every SIMATIC product family?

Its listed application is S7-300, C7 and compatible ET 200 equipment rather than every SIMATIC memory interface.

How much physical clearance does 6ES7953-8LF31-0AA0 need in its card holder?

The card body measures 24 mm wide, 32 mm high and 1.4 mm deep.

What card mass should I allow for when handling 6ES7953-8LF31-0AA0?

The memory card weighs approximately 2 g.

Compatibility & Ordering Notes

Before ordering 6ES7953-8LF31-0AA0: Choose the 64 KB Micro Memory Card for a supported 3.3 V SIMATIC memory interface and a project that fits its capacity.

Compatibility Checklist for 6ES7953-8LF31-0AA0

• Match the S7-300, C7 or ET 200 host to its supported Micro Memory Card interface.
• Compare the project memory requirement with the 64 kbyte capacity.
• Keep the complete LF31 article suffix when selecting the replacement.
• Plan repeated writes within the minimum 100,000-operation endurance.
• Allow the specified 24 × 32 × 1.4 mm physical card format.

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