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6ES7952-1KY00-0AA0 | SIMATIC S7-300 / C7 MMC Memory Card 64 MB — Micro Memory Card (MMC)

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Certification
China Achievers Automation Limited certification
China Achievers Automation Limited certification
"ACH has proven to be a reliable partner. Their products are genuine and high-quality, with competitive prices and on-time delivery. We trust them as our long-term supplier in automation."

—— Mohammed Al-Farsi, Procurement

"For us, cost efficiency and authenticity are key. ACH helps reduce expenses while ensuring reliable quality and timely supply, making them a strong partner in our operations."

—— Procurement Manager

"For us, cost efficiency and authenticity are key. ACH helps reduce expenses while ensuring reliable quality and timely supply, making them a strong partner in our operations."

—— Supply Chain Director

"ACH offers quick response, flexible solutions, and fair pricing. The products are always genuine and reliable, and their friendly support makes cooperation smooth."

—— Operations Manager

"ACH provides genuine products with stable quality and fair pricing. Their fast response and reliable delivery give us confidence to continue working with them."

—— Engineering Manager

"We value ACH for their consistent quality and competitive pricing. Deliveries are always reliable, and their professional support makes procurement much easier for our team."

—— Procurement Head

6ES7952-1KY00-0AA0 | SIMATIC S7-300 / C7 MMC Memory Card 64 MB — Micro Memory Card (MMC)

6ES7952-1KY00-0AA0 | SIMATIC S7-300 / C7 MMC Memory Card 64 MB — Micro Memory Card (MMC)
6ES7952-1KY00-0AA0 | SIMATIC S7-300 / C7 MMC Memory Card 64 MB — Micro Memory Card (MMC) 6ES7952-1KY00-0AA0 | SIMATIC S7-300 / C7 MMC Memory Card 64 MB — Micro Memory Card (MMC)

Large Image :  6ES7952-1KY00-0AA0 | SIMATIC S7-300 / C7 MMC Memory Card 64 MB — Micro Memory Card (MMC) Get Best Price

Product Details:
Place of Origin: DE
Certification: ATEX
Model Number: 6ES7952-1KY00-0AA0
Document: ACH-AB-P+F-E+H-IFM-ASCO-YOK...WA.pdf
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: Negotiable
Packaging Details: carton
Delivery Time: Negotiable
Payment Terms: T/T,XT,ALIPAY
Supply Ability: 100pcs per month
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Detailed Product Description
Power Supply: 1 Ambient Temperature: -
Electrical Rating: G Certifications: S
Highlight:

SIMATIC S7-300 MMC memory card 64MB

,

Micro Memory Card for SIMATIC C7

,

MMC card with 64MB storage

6ES7952-1KY00-0AA0 | SIMATIC S7-300 / C7 MMC Memory Card 64 MB — Micro Memory Card (MMC)
6ES7952-1KY00-0AA0 SIMATIC S7-300 & C7 Micro Memory Card (MMC), 64 MB Flash, 3.3 V, for CPU 312 and above + OP/TP 170/270/370. Long-life EEPROM, requires PG/PC or CPU for formatting.

Product Overview

6ES7952-1KY00-0AA0​ is a SIMATIC S7-300 / C7-series Micro Memory Card (MMC)​ with 64 MB (512 Mbit) non-volatile Flash memory. It serves as the mandatory operating memory + load memory​ for S7-300 CPUs (from CPU 312 onward) and is also used for storing recipes, data logs, and as a firmware update carrier. The card operates at 3.3 V, uses a 24-pin proprietary MMC form factor​ (not standard SD), and must be formatted by the S7-300 CPU or via a PG/PC with STEP 7​ — it cannot be formatted in a PC card reader. Compatible with S7-300 CPUs, C7 all-in-one units, and certain TP/OP 170/270/370 HMI panels (as recipe/alibi memory).

Technical Specifications (Memory & Electrical)

Parameter
Specification
Order Number​
6ES7952-1KY00-0AA0​
Product Family​
SIMATIC S7-300 — Micro Memory Card (MMC)
Memory Capacity​
64 MB​ (≈ 512 Mbit usable Flash)
Technology​
NAND Flash EEPROM (non-volatile)
Operating Voltage​
3.3 V DC​ (supplied by CPU / PG slot)
Interface / Pinout​
24-pin proprietary MMC (not SD/MMC standard)
Write Cycles (Endurance)​
≥ 100,000 erase/write cycles per sector
Data Retention​
≥ 10 years @ 40 °C (typical)
Typical Use Cases​
User program (Load Memory), DB storage, Recipes, Firmware Update, HMI backup

Technical Specifications (Compatibility & Mechanical)

Parameter
Specification
Compatible Controllers​
S7-300 CPUs:​ 312, 313C, 314C, 315-2DP/PN, 317-2DP/PN, 319-3PN/DP (all MMC-based S7-300)
Compatible HMI / C7​
C7-613/633/635/636/637; TP/OP 170A/B, TP/OP 270, TP/OP 370 (as recipe/alibi memory card)
NOT Compatible With​
S7-200 (uses S7-200 MC / 24xx cards), S7-400 (uses FEPROM/SIMATIC MMC ≠ this type), older S5
Format Requirement​
Must be formatted by S7-300 CPU in STOP mode​ or via STEP 7 PG/PC (Card Reader + Simatic Card Mode)​ — not readable in Windows card readers
Insertion / Removal​
Insert with power OFF → power ON CPU to detect; removal only with CPU power OFF
Dimensions (L × W × H)​
32 × 24 × 2.1 mm (MMC form factor)
Weight (Approx.)​
2 g
Ambient Temp. (Storage / Op via CPU)​
-40 … +85 °C (storage); card active only inside CPU temp. range
Commodity Code / ECCN​
8542 32 00 90 / EAR99
RoHS / REACH​
Compliant

Key Features

  • Mandatory for S7-300 MMC-Based CPUs:​ S7-300 CPUs from CPU 312 (firmware 2.x+) boot and run programs exclusively from the MMC — no card = no RUN.
  • 64 MB Capacity:​ Ample for large user programs, data blocks, and recipe storage — also suitable for firmware update files (if <64 MB uncompressed image).
  • Long Data Retention & High Endurance:​ Industrial-grade Flash with 10-year retention and 100 k write cycles — suitable for cyclic data logging (though frequent cyclic writes should use CPU work memory / DBs with retain).
  • Single-Source SIMATIC Spare:​ Identical to what ships with new S7-300 CPUs — direct spare/replacement part.

Typical Applications

  • S7-300 PLC Spare / Replacement MMC:​ For CPU program backup, cloning, or replacing a failed/damaged card.
  • Program Distribution:​ Pre-load project + HW config on MMC at OEM shop, ship to site for plug-and-run commissioning.
  • Recipe & Data Log Storage:​ Store HMI recipes or archived process data on the card for later retrieval.
  • Firmware Update Carrier:​ Load S7-300 CPU firmware update file onto MMC and execute update via CPU menu.
S7-300 MMC family sizes: 6ES7952-1KK00 (8 KB mini), -1KH00 (32 KB), -1KL00 (64 KB mini), -1KM00 (128 KB mini), -1AP00 (2 MB), -1AS00 (4 MB), -1AY00 (8 MB), -1AK00 (16 MB), -1AM00 (32 MB), -1KY00 (64 MB — this item). For S7-1200 use S7-1200 MC (6ES7954-...); for S7-1500 use SIMATIC Memory Card (6ES7954-8LF01 etc.).

6ES7952-1KY00-0AA0 | SIMATIC S7-300 / C7 MMC Memory Card 64 MB — Micro Memory Card (MMC) 0

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About ACH

Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL  to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.

ACH industrial automation products
Frequently Ask & Questions
Are preferential prices available?

Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.

Are the Products Genuine OEM Units?

Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.

How will you arrange shipment?

We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.

What is the warranty of goods?

One-year Warranty.

How long is the logistics cycle of the product?

Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.

Ratings & Review

Overall Rating

5.0
Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings
5 stars
100%
4 stars
0%
3 stars
0%
2 stars
0%
1 stars
0%

All Reviews

K
Khalid
United Arab Emirates May 10.2026
Helpful (1)
This Phoenix Contact power supply is stable and reliable.
S
Siti
Malaysia May 6.2026
Helpful (1)
Schmersal BP22N magnetic actuator works reliably with safety switches.
M
Muhammad Ali
Pakistan Apr 26.2026
Helpful (1)
This Thies Clima rain sensor is reliable and works perfectly!
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SIMATIC S7-300 MMC memory card 64MB

Contact Details
Achievers Automation Limited

Contact Person: sales2

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