Product details
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SIEMENS · PRODUCT DETAILS

6ES7953-8LF20-0AA0

SIMATIC S7 64 KB Micro Memory Card

64 KB3.3 VNflash

PRODUCT SNAPSHOT

A 64 KB nonvolatile flash memory card for compatible SIMATIC S7-300, C7 and ET 200 automation systems. It provides removable storage for programs and configuration data.

The card uses a 3.3 V interface and belongs to the earlier SIMATIC Micro Memory Card generation. Siemens identifies 6ES7953-8LF31-0AA0 as its successor.

DIRECT CONTACT

☎ +86 17359287459 ✉ sales9@apterpower.com

DIAGNOSTICS · PROTECTION · COMMISSIONING

Reliable operation with structured installation guidance

◆ Diagnostic protection

Nonvolatile flash storage retains project data when system power is removed.
The fixed 64 KB capacity provides a clear limit for configuration validation.
Order-code and capacity checks help prevent use of an incompatible memory card.
CPU diagnostic indications can be used to confirm recognition after insertion.

◆ Installation & upgrade

Back up the existing project before removing or replacing the memory card.
De-energize the supported controller and insert the card in the specified orientation.
Confirm compatibility with the target S7-300, C7 or ET 200 device.
For migration, validate project and hardware support for successor 6ES7953-8LF31-0AA0.

OFFICIAL TECHNICAL DATA

Product type
SIMATIC Micro Memory Card

Memory capacity
64 KB

Memory technology
Nflash

Rated interface
3.3 V

Compatible systems
S7-300 / C7 / ET 200

Lifecycle
End of lifecycle since 2021

Successor
6ES7953-8LF31-0AA0

Technical content is based on Siemens documentation for this exact order code. Installation and validation must follow the applicable Siemens manuals.

BRAND STRENGTH · APPLICATION MAP

Industrial integration and application guidance

Siemens brand characteristics

Integrated engineering across controllers, distributed I/O, communication and safety systems.
Documented diagnostics support structured commissioning, maintenance and replacement work.
Long lifecycle support and defined migration paths serve established automation platforms.
Broad industrial portfolio supports machine, process and infrastructure applications.

Application fields

Program storage for SIMATIC S7-300 controllers.
Configuration media for C7 systems.
ET 200 automation station memory replacement.
Maintenance of legacy SIMATIC installations.

RECOMMENDED MODELS

SIEMENS

6ES7326-1RF01-0AB0

6ES7326-2BF10-0AB0

6ES7326-2BF41-0AB0

6ES7136-6BA00-0CA0

6ES7136-6DB00-0CA0

6ES7136-6DC00-0CA0

6ES7136-6RA00-0BF0

6ES7136-6PA00-0BC0

6ES7138-4FA05-0AB0

6ES7138-4FB04-0AB0

6ES7138-6BA01-0BA0

6ES7138-6CB00-0CA0

6ES7138-6DB00-0BB1

6ES7195-7HD10-0XA0

6ES7153-2BA10-0XB0

6ES7153-4BA00-0XB0

6ES7317-6FF04-0AB0

6ES7416-5FS07-0AB0

6ES7532-5HD00-0AB0

6ES7231-5PF32-0XB0

BECKHOFF

EL1904

EL2904

EL6910

EL6930

EL6900

EL1918

EL2911

EP1908-0002

EP1957-0022

EP2338-0002

EK1960

EK1914

KL1904

KL2904

KL6904

TwinSAFE SC

AX5805

AX5806

CX9020-0111

CX5130-0125

QUOTE · SERVICE & POLICY

Clear verification before supply

Request a quotation

Send the exact order code, required quantity and delivery destination. We confirm revision, condition, availability and lead time before dispatch.

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6ES7953-8LF20-0AA0 Datasheet Module

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