Counterfeit and defect prevention
Visual and packaging inspection
Electrical performance verification
Service Email:
[email protected]
>
AT24CS08-STUM-T
Microchip Technology
IC EEPROM 8KBIT I2C 1MHZ SOT23-5
15193 Pcs New Original In Stock
EEPROM Memory IC 8Kbit I2C 1 MHz 550 ns SOT-23-5
Request Quote
(Ships tomorrow)
*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (294 Ratings)
AT24CS08-STUM-T
Product Overview
1413284
DiGi Electronics Part Number
AT24CS08-STUM-T-DGManufacturer
Microchip Technology
AT24CS08-STUM-T
Description
IC EEPROM 8KBIT I2C 1MHZ SOT23-5Inventory
15193 Pcs New Original In Stock
EEPROM Memory IC 8Kbit I2C 1 MHz 550 ns SOT-23-5
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
Quality Assurance
365 - Day Quality Guarantee - Every part fully backed.
90 - Day Refund or Exchange - Defective parts? No hassle.
Limited Stock, Order Now - Get reliable parts without worry.
Global Shipping & Secure Packaging
Worldwide Delivery in 3-5 Business Days
100% ESD Anti-Static Packaging
Real-Time Tracking for Every Order
Secure & Flexible Payment
Credit Card, VISA, MasterCard, PayPal, Western Union, Telegraphic Transfer(T/T) and more
All payments encrypted for security
AT24CS08-STUM-T Technical Specifications
Category
Memory, Memory
Packaging
Tape & Reel (TR)
Series
-
Product Status
Active
DiGi-Electronics Programmable
Not Verified
Memory Type
Non-Volatile
Memory Format
EEPROM
Technology
EEPROM
Memory Size
8Kbit
Memory Organization
1K x 8
Memory Interface
I2C
Clock Frequency
1 MHz
Write Cycle Time - Word, Page
5ms
Access Time
550 ns
Voltage - Supply
1.7V ~ 5.5V
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Package / Case
SOT-23-5 Thin, TSOT-23-5
Supplier Device Package
SOT-23-5
Base Product Number
AT24CS08
Datasheet & Documents
HTML Datasheet
AT24CS08-STUM-T-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.32.0051
Additional Information
Other Names
AT24CS08-STUM-TTR
1611-AT24CS08-STUM-TTR
1611-AT24CS08-STUM-TTR-DG
1611-AT24CS08-STUM-TCT-DG
1611-AT24CS08-STUM-TCTINACTIVE
1611-AT24CS08-STUM-TDKRINACTIVE
1611-AT24CS08-STUM-TTRINACTIVE
1611-AT24CS08-STUM-TDKR-DG
AT24CS08-STUM-TDKR
1611-AT24CS08-STUM-TDKR
AT24CS08-STUM-TCT
1611-AT24CS08-STUM-TCT
Standard Package
5,000
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
物流效率超級棒，配送速度快得令人驚喜，值得信賴！
Dec 02, 2025
La navigation sur le site est intuitive, ce qui simplifie nos démarches quotidiennes.
Dec 02, 2025
すぐに発送してもらえて本当に助かりました。対応の早さに感謝！
Dec 02, 2025
Their reliable shipping process ensures my orders arrive safely and on schedule.
Dec 02, 2025
Efficient shipping and professional support. My experience was seamless and enjoyable.
Dec 02, 2025
售后反应异常迅速，让我感觉非常贴心和放心。
Publish Evalution
Evalution Message
Please enter your review message.
Please post honest comments and do not post ilegal comments.
Frequently Asked Questions (FAQ)
Can the AT24CS08-STUM-T be used as a drop-in replacement for the STMicroelectronics M24C08-FDWFT3 in a 3.3V I2C system with multiple slave devices?
The AT24CS08-STUM-T is generally compatible with the M24C08-FDWFT3 in terms of memory size, I2C interface, and SOT23-5 footprint, but critical differences exist. While both support 1.7V–5.5V operation and 1 MHz I2C speeds, the AT24CS08 includes a unique 128-bit serialized ID page and hardware write protection features not present in the M24C08. If your design relies on consistent device addressing across multiple EEPROMs or assumes no auxiliary memory pages, the AT24CS08’s additional ID space could interfere with address decoding logic. Verify that your firmware does not inadvertently access the ID page (addresses beyond 0x7F) and confirm that the A0–A2 pin behavior matches expectations—especially in multi-device configurations—before committing to a drop-in swap.
What are the reliability risks of using the AT24CS08-STUM-T in an industrial environment with frequent power cycling and temperatures near -30°C, and how does its MSL 1 rating influence board-level design?
The AT24CS08-STUM-T is rated for -40°C to +85°C operation and carries an MSL 1 (unlimited floor life) classification, which eliminates moisture-related reflow risks during assembly—ideal for high-reliability industrial applications. However, frequent power cycling at low temperatures can stress the I2C bus if pull-up resistors are undersized; at -30°C, bus capacitance effects become more pronounced, potentially violating tHD;STA timing requirements. Use 2.2 kΩ to 4.7 kΩ pull-ups on SDA/SCL lines and ensure VCC ramps cleanly above 1.7V within 1 ms to avoid partial writes. Additionally, although the part supports 1 million write cycles, aggressive write scheduling during cold starts may accelerate wear if not managed by wear-leveling firmware.
How does the AT24CS08-STUM-T compare to the ON Semiconductor CAT24C08WI-GT3 in terms of real-world write endurance under frequent small-block updates, and what design mitigations are recommended?
Both the AT24CS08-STUM-T and CAT24C08WI-GT3 offer 1 million write cycles per byte and similar 5 ms page write times, but the Microchip device includes a built-in write protection mechanism via the WP pin and serialized ID page that the CAT24C08 lacks. In applications with frequent small-block updates (e.g., logging sensor data every few seconds), neither part inherently supports wear leveling—so without firmware intervention, localized wear can occur. To mitigate this, implement software-based address rotation across the full 1K x 8 space and avoid repeatedly writing to the same page. The AT24CS08’s ID page should be excluded from user data storage to prevent unintended access, adding slight complexity but improving long-term reliability over the CAT24C08 in mission-critical designs.
Is it safe to operate the AT24CS08-STUM-T at 5.5V continuously in a mixed-voltage system where the MCU runs at 3.3V, and what level-shifting considerations apply for I2C signal integrity?
Yes, the AT24CS08-STUM-T can safely operate at 5.5V even when interfaced with a 3.3V MCU because its I2C inputs are tolerant up to VCC + 0.3V and include Schmitt-trigger buffers. However, to ensure reliable communication and protect the MCU, use bidirectional I2C level shifters (e.g., TXS0102 or PCA9306) between the 3.3V controller and the 5V-powered EEPROM. Direct connection risks marginal VIH levels on the MCU side and potential latch-up under transient conditions. Additionally, ensure that the I2C pull-up resistors are connected to the EEPROM’s VCC (5V), not the MCU’s 3.3V rail, to meet the AT24CS08’s input high threshold. This configuration maintains signal integrity while leveraging the part’s wide voltage range for noise immunity in industrial environments.
What design precautions should be taken when replacing a failed AT24CS08-STUM-T in a field-deployed product, especially regarding firmware assumptions about memory layout and write timing?
When replacing a failed AT24CS08-STUM-T in the field, ensure the new unit comes from a trusted source (preferably tape-and-reel stock like the listed 15,100 pcs) to avoid counterfeit parts with altered timing or reduced endurance. Critically, verify that your firmware does not hardcode assumptions about total usable memory—the AT24CS08 reserves the upper 128 bytes (0x7F0–0x7FF) for the serialized ID page, which is read-only and non-user-writable. Attempting to write to these addresses will fail silently, leading to data corruption risks. Also, confirm that your write-delay logic accommodates the full 5 ms page write time, especially after power-on; inserting a 6 ms delay after each write operation prevents overwriting attempts during internal programming. Always validate replacement units with a known-good read/write test pattern before redeployment.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
AT24CS08-STUM-T CAD Models
Microchip Technology AT24CS08-STUM-T PCB symbols & footprints
productDetail
