Counterfeit and defect prevention
Visual and packaging inspection
Electrical performance verification
Service Email:
[email protected]
>
M34C02-WDW6T
STMicroelectronics
IC EEPROM 2KBIT I2C 8TSSOP
5436 Pcs New Original In Stock
EEPROM Memory IC 2Kbit I2C 400 kHz 900 ns 8-TSSOP
Request Quote
(Ships tomorrow)
*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (247 Ratings)
M34C02-WDW6T
Product Overview
8178299
DiGi Electronics Part Number
M34C02-WDW6T-DGManufacturer
STMicroelectronics
M34C02-WDW6T
Description
IC EEPROM 2KBIT I2C 8TSSOPInventory
5436 Pcs New Original In Stock
EEPROM Memory IC 2Kbit I2C 400 kHz 900 ns 8-TSSOP
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
M34C02-WDW6T Technical Specifications
Category
Memory, Memory
Packaging
Cut Tape (CT)
Series
-
Product Status
Obsolete
DiGi-Electronics Programmable
Verified
Memory Type
Non-Volatile
Memory Format
EEPROM
Technology
EEPROM
Memory Size
2Kbit
Memory Organization
256 x 8
Memory Interface
I2C
Clock Frequency
400 kHz
Write Cycle Time - Word, Page
10ms
Access Time
900 ns
Voltage - Supply
2.5V ~ 5.5V
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Package / Case
8-TSSOP (0.173", 4.40mm Width)
Supplier Device Package
8-TSSOP
Base Product Number
M34C02
Datasheet & Documents
HTML Datasheet
M34C02-WDW6T-DG
Environmental & Export Classification
RoHS Status
RoHS non-compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
OBSOLETE
HTSUS
8542.32.0051
Additional Information
Other Names
M34C02-WDW6TCT
497-1723-1-NDR
M34C02-WDW6TTR
-497-1723-1
497-1723-2-NDR
-497-1723-2
-497-1723-1-NDR
-497-1723-2-NDR
M34C02WDW6T
497-1723-1
497-1723-2
Standard Package
4,000
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
비용 절감에 도움을 주는 멋진 사이트입니다.
Dec 02, 2025
모든 거래 과정에서 투명한 정보 제공으로 확실한 신뢰를 쌓을 수 있었습니다.
Dec 02, 2025
Une organisation d'inventaire transparente et très bien gérée, je recommande vivement.
Dec 02, 2025
Je suis impressionné par la qualité de l'assistance après-vente de DiGi Electronics, ils prennent soin de leurs clients à chaque étape.
Dec 02, 2025
The speed of delivery was remarkable, perfect for urgent needs.
Dec 02, 2025
I am very satisfied with the consistent quality and friendly support I receive.
Dec 02, 2025
Great affordability combined with an intuitive shopping experience.
Dec 02, 2025
Fast logistics turnaround allowed me to receive my products shortly after ordering, which was excellent.
Dec 02, 2025
The packaging adds to the overall quality perception, and their prices make it accessible for everyone.
Publish Evalution
Evalution Message
Please enter your review message.
Please post honest comments and do not post ilegal comments.
Frequently Asked Questions (FAQ)
What are the key risks when replacing an obsolete M34C02-WDW6T in an existing design, and how can I ensure backward compatibility with newer EEPROMs?
The M34C02-WDW6T is now obsolete, so long-term supply cannot be guaranteed, posing a redesign risk. When selecting a replacement such as the 24LC024-I/ST or R1EX24002ATAS0I#U0, verify I2C address mapping, page write timing (10ms for M34C02-WDW6T), and voltage tolerance—especially if your system operates near 2.5V. Although most substitutes support 2.5V–5.5V, some may have different standby current or noise immunity. Perform bench validation under worst-case temperature (-40°C) and voltage conditions to confirm timing margins and ACK/NACK behavior, as subtle I2C protocol differences can cause intermittent failures in field-deployed units.
Can I safely use a 3.3V-only EEPROM like the 24LC02BH-E/ST as a drop-in replacement for the M34C02-WDW6T in a 5V-tolerant I2C bus?
While the M34C02-WDW6T supports full 2.5V–5.5V operation, the 24LC02BH-E/ST is rated only up to 3.6V and lacks 5V tolerance on its I2C pins. Direct substitution on a 5V I2C bus risks damaging the replacement IC. To mitigate this, either use a level shifter (e.g., PCA9306) or select a truly 5V-compatible alternative like the BR24L02FVT-WE2. Always check the absolute maximum ratings of the substitute—not just the functional specs—to avoid latent reliability issues from overvoltage stress during power-up transients.
How does the write endurance of the M34C02-WDW6T compare to modern EEPROMs, and what design practices minimize wear in frequently updated applications?
The M34C02-WDW6T guarantees 1 million write cycles per byte, which is standard for EEPROMs, but frequent writes to the same address (e.g., logging counters) can still cause premature failure. Unlike some newer parts with wear-leveling or larger page buffers, this device uses a simple 4-byte page write structure. To extend lifespan, implement software-based wear leveling by rotating write addresses across the 256-byte array, and avoid unnecessary writes by buffering data in RAM and committing only on critical events. This is especially important in battery-powered systems where reprogramming frequency impacts long-term reliability.
What layout and decoupling considerations are critical when integrating the M34C02-WDW6T in a high-noise industrial environment operating near -40°C?
At the lower end of its -40°C to 85°C range, the M34C02-WDW6T’s access time (900 ns) and write cycle stability can degrade under noisy power conditions. Use a 100nF ceramic capacitor placed within 2mm of VCC and GND pins to suppress I2C-induced transients. Route SDA/SCL lines away from high-current traces and include series termination resistors (100–470Ω) to dampen reflections. Since it's MSL 1 (unlimited floor life), moisture isn’t a concern, but thermal cycling in industrial settings may stress solder joints—opt for SAC305 solder and avoid excessive via stitching under the TSSOP package to prevent tombstoning.
Is it safe to parallel two M34C02-WDW6T devices on the same I2C bus for redundancy, and what hardware changes are needed to avoid address conflicts?
The M34C02-WDW6T has a fixed I2C address (1010xxx), so connecting two directly will cause bus contention. Unlike some EEPROMs with configurable address pins, this part lacks hardware address selection. To enable redundancy, you must use an I2C multiplexer (e.g., TCA9544A) to isolate each M34C02-WDW6T on separate bus segments, or replace it with a device that supports address pin configuration like the 24LC024-E/ST. Software must also manage failover logic and validate data consistency between devices. Without these changes, simultaneous ACK responses will corrupt the I2C waveform and likely cause system lockups.
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.
M34C02-WDW6T CAD Models
STMicroelectronics M34C02-WDW6T PCB symbols & footprints
productDetail
