AT24C02B-PU Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
AT24C02B-PU is a 2 Kbit (256-byte) I2C serial EEPROM operating from 1.8 V to 5.5 V at up to 1 MHz I2C clock, with 1 million write/erase cycle endurance and 100-year data retention, housed in an 8-pin DIP package for prototyping and through-hole PCB assembly applications requiring non-volatile parameter storage.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- AT24C02B-PU Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of AT24C02B-PU?
- 2 Kbit (256-byte) EEPROM density organized as 32 pages of 8 bytes
- I2C interface supporting Standard (100 kHz), Fast (400 kHz), and FM+ (1 MHz) modes
- Wide supply range 1.8 V to 5.5 V for 3.3 V and 5 V system compatibility
- 1,000,000 write/erase cycle endurance for frequent parameter update applications
- 100-year minimum data retention at 25°C for long-life embedded configurations
- Hardware write-protect pin prevents accidental data overwrite
- 8-pin DIP package ideal for breadboard prototyping and through-hole production boards
What is AT24C02B-PU used for?
AT24C02B-PU is used for storing small non-volatile configuration data such as calibration coefficients, device addresses, and user preferences in embedded systems including microcontroller development boards, sensor modules, and industrial instruments. The I2C interface with configurable address pins allows up to 8 AT24C02B devices to share a single 2-wire bus, making it practical for multi-node systems that store individual node configuration data. Through-hole hobbyist projects, Arduino add-on boards, and legacy industrial controllers that require replaceable EEPROM chips without soldering equipment also commonly use this device.
What are the specifications of AT24C02B-PU?
| YTEOL | 0 |
| Clock Frequency-Max (fCLK) | 1MHz |
| Data Retention Time-Min | 100 |
| Endurance | 1000000 Write/Erase Cycles |
| I2C Control Byte | 1010DDDR |
| JESD-30 Code | R-PDIP-T8 |
| 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 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Parallel/Serial | SERIAL |
| Programming Voltage | 5V |
| Serial Bus Type | I2C |
| Standby Current-Max | 0.000018A |
| Supply Current-Max | 0.003mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Write Cycle Time-Max (tWC) | 5ms |
| Write Protection | HARDWARE |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
Where can I find the AT24C02B-PU datasheet?
AT24C02B-PU Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for AT24C02B-PU?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Which designs can use AT24C02B-PU when 8 pins is a required parameter?
AT24C02B-PU is a practical fit when the design needs 8 pins in a integrated circuit from Microchip. Buyers should confirm the package, lifecycle state, and original datasheet before approving it for production builds.
How should buyers compare AT24C02B-PU with alternate integrated circuit options?
Use -40°C to 85°C as one verified requirement, then match the electrical ratings, footprint, and manufacturer series against the target BOM. This reduces substitution risk when similar parts differ in assembly or operating limits.
Which assembly detail should be checked before sourcing AT24C02B-PU for production?
Confirm that the selected lot matches DIP and the known 2 Kb requirement before RFQ approval. This gives incoming inspection and engineering teams a clearer basis for footprint, mating, or thermal review.
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