AT24C02D-MAHM-E Microchip Integrated Circuit (Small Outline No-lead) In Stock
AT24C02D-MAHM-E is a 2 Kbit I2C serial EEPROM from Microchip featuring 1.7 V to 3.6 V operation, 1 MHz clock frequency, and industrial temperature range in an 8-pin UDFN package. It offers 1 million write/erase cycles and 100-year data retention at 55 degrees C. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- AT24C02D-MAHM-E Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1890(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low voltage operation from 1.7 V to 3.6 V enables direct interfacing with modern low-power microcontrollers without level shifting
- 1 MHz I2C clock frequency accelerates data access, reducing read/write latency in time-sensitive embedded applications
- 1 million write/erase cycle endurance with 100-year data retention at 55 degrees C ensures long-term reliability in industrial deployments
Applications
AT24C02D-MAHM-E is ideal for storing configuration parameters, calibration data, and security keys in IoT edge nodes and industrial sensors operating from 1.7 V to 3.6 V rails. Its compact UDFN-8 package and 1 MHz I2C interface make it suitable for wearable medical devices and smart metering equipment where board space and low power are priorities. The industrial temperature range supports deployments in automotive accessories and ruggedized embedded systems.
Specifications
| Manufacturer Package Code | UDFN-8 |
| Factory Lead Time | 9Weeks |
| Date Of Intro | 2016-12-12 |
| YTEOL | 19 |
| Additional Feature | DATA RETENTION TIME @ 55 DEGREE CENTIGRADE |
| Clock Frequency-Max (fCLK) | 1MHz |
| Data Retention Time-Min | 100 |
| Endurance | 1000000 Write/Erase Cycles |
| I2C Control Byte | 1010DDDR |
| JESD-30 Code | R-PDSO-N8 |
| Memory Density | 2048bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Words | 256words |
| Number of Words Code | 256 |
| Operating Mode | SYNCHRONOUS |
| Organization | 256X8 |
| Output Characteristics | OPEN-DRAIN |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.12,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, ULTRA THIN PROFILE |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | 260 |
| Programming Voltage | 1.8V |
| Screening Level | TS 16949 |
| Serial Bus Type | I2C |
| Standby Current-Max | 8e-7 A |
| Supply Current-Max | 0.001mA |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 1.7V |
| Supply Voltage-Nom (Vsup) | 1.8V |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Write Cycle Time-Max (tWC) | 5ms |
| Write Protection | HARDWARE |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
| Country of Origin | Philippines, Taiwan, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many write cycles can AT24C02D-MAHM-E endure and what does that mean for frequent-update applications?
AT24C02D-MAHM-E is rated for 1 million write/erase cycles per byte, which at a rate of 1 write per second equates to over 11 days of continuous writing. For typical embedded applications updating configuration data every few minutes, this endurance supports more than 2 years of operation before reaching the cycle limit, making wear leveling unnecessary in most low-frequency update scenarios.
Which microcontroller families can interface directly with AT24C02D-MAHM-E without voltage translation?
Because AT24C02D-MAHM-E operates from 1.7 V to 3.6 V with I2C at up to 1 MHz, it interfaces directly with STM32L0, nRF52, and MSP430 microcontrollers running at 1.8 V or 3.3 V. No level-shifting hardware is needed when VCC is within the 1.7 V to 3.6 V range, simplifying BOM and reducing the 2-wire interface footprint.
Is AT24C02D-MAHM-E suitable for storing security credentials in a space-constrained wearable design?
Yes. AT24C02D-MAHM-E provides 256 bytes (2 Kbits) of non-volatile storage in an UDFN-8 package measuring approximately 2 mm x 3 mm, which comfortably holds device certificates, symmetric keys, or MAC addresses. Its 100-year data retention at 55 degrees C ensures credentials persist through the product lifetime without refresh cycles.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.2800 | $0.28 |
| 10+ | $0.2760 | $2.76 |
| 100+ | $0.2400 | $24.00 |
| 1000+ | $0.2070 | $207.00 |
| 5000+ | $0.1890 | $945.00 |
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