24LC02B-I/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
24LC02B-I/ST is a 2 Kbit I2C serial EEPROM in an 8-pin TSSOP package from Microchip. It operates from 2.5 V to 5.5 V with a 400 kHz fast-mode interface and supports 1 million erase/write cycles. Available in stock for worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 24LC02B-I/ST Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 2 Kbit (256 × 8-bit) serial EEPROM with I2C interface at up to 400 kHz, enabling low-pin-count non-volatile storage in microcontroller systems
- Wide operating voltage of 2.5 V to 5.5 V ensures compatibility with both 3.3 V and 5 V logic families without external level shifters
- Endurance rating of 1 million erase/write cycles with 200-year data retention supports frequent calibration and configuration updates in industrial applications
Applications
24LC02B-I/ST is used in embedded systems to store calibration coefficients, device configuration settings, and small lookup tables that must survive power cycling. Its compact TSSOP-8 footprint and 2-wire I2C bus make it a standard companion to microcontrollers in consumer electronics, smart meters, and sensor modules. The device is also common in industrial equipment where factory trim data or serial numbers must be retained reliably over a wide temperature range.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TSSOP-8 |
| Factory Lead Time | 7Weeks |
| Date Of Intro | 1991-01-01 |
| YTEOL | 8 |
| Memory IC Type | EEPROM |
| Qualification Status | Not Qualified |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
| Country of Origin | Mainland China, Malaysia, Philippines, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 24LC02B-I/ST:
Frequently Asked Questions
How many bytes can 24LC02B-I/ST store, and how is the memory organized?
24LC02B-I/ST provides 2 Kbits of non-volatile storage organized as 256 bytes in a single array. Sequential page writes of up to 8 bytes can be performed in a single I2C transaction, allowing firmware to update a full configuration block in under 100 µs at 400 kHz clock rate.
What is the maximum I2C clock frequency supported by 24LC02B-I/ST, and how does it affect system throughput?
The device supports standard-mode operation at 100 kHz and fast-mode at 400 kHz. At 400 kHz, transferring the full 256-byte array takes approximately 5.5 ms including acknowledge cycles, which is sufficient for reading sensor calibration data at start-up in embedded systems using 3.3 V or 5 V supply rails.
Is 24LC02B-I/ST suitable for an industrial temperature environment, and how long does it retain data without power?
Yes. The I-grade variant is rated for the industrial temperature range of –40 °C to +85 °C, covering harsh factory floor and outdoor sensor applications. Data retention is specified at a minimum of 200 years at 25 °C, and the device endures at least 1 million erase/write cycles before wear degradation begins.
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