24LC08B-I/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip 24LC08B-I/ST is an 8Kbit I2C serial EEPROM organized as 1K x 8 bits, operating from 2.5V to 5.5V with 400kHz fast-mode I2C. Features 1 million write cycle endurance and 200-year data retention in a compact TSSOP-8 package. Available from stock worldwide with competitive pricing and fast worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 24LC08B-I/ST 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
Key Features
- 8Kbit (1K x 8) EEPROM capacity with 400kHz fast-mode I2C interface for efficient high-speed data access
- 1 million erase/write cycle endurance with 200-year minimum data retention for reliable long-life storage
- Ultra-compact TSSOP-8 package enabling high-density PCB layouts in space-constrained portable designs
- Wide 2.5V to 5.5V supply range with hardware write-protect pin for flexible system integration and data security
Applications
The 24LC08B-I/ST is commonly used for storing firmware parameters, calibration data, and configuration settings in consumer electronics, IoT devices, and embedded systems. Its I2C interface simplifies integration into microcontroller-based designs where multiple devices share the same two-wire bus, reducing pin count and PCB complexity. The device is also deployed in industrial sensors, medical equipment, and set-top boxes where reliable non-volatile data retention is essential.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TSSOP-8 |
| Factory Lead Time | 9Weeks |
| Clock Frequency-Max (fCLK) | 0.4MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| I2C Control Byte | 1010XMMR |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Memory Density | 8192bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Words | 1024words |
| Number of Words Code | 1000 |
| Operating Mode | SYNCHRONOUS |
| Organization | 1KX8 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supplies | 3/5 V |
| Qualification Status | Not Qualified |
| Serial Bus Type | I2C |
| Standby Current-Max | 0.000001A |
| Subcategory | EEPROMs |
| Supply Current-Max | 0.003mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Write Cycle Time-Max (tWC) | 5ms |
| Write Protection | HARDWARE |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 24LC08B-I/ST:
Frequently Asked Questions
What is the memory capacity and organization of the 24LC08B-I/ST?
The 24LC08B-I/ST is an 8Kbit EEPROM organized as 1024 words by 8 bits (1K x 8), providing 1024 bytes of non-volatile storage. This capacity is suitable for storing configuration tables, calibration coefficients, user settings, and small data logs in embedded applications.
What package does the 24LC08B-I/ST use and how does it compare to the SOIC-8?
The 24LC08B-I/ST uses a TSSOP-8 package (Thin Shrink Small Outline Package, 8-pin), which is significantly smaller than the standard SOIC-8 footprint. The TSSOP-8 package has a 0.65mm pin pitch versus 1.27mm for SOIC-8, enabling higher component density on space-constrained PCB designs.
What I2C control byte does the 24LC08B-I/ST use for addressing?
The 24LC08B-I/ST uses the I2C control byte format 1010XMMR, where MM bits select the memory page block (the device has 4 x 256-byte pages) and R/W bit controls the read or write direction. Up to 4 devices can share the same bus using the MM address bits, providing up to 32Kbit of addressable storage.
What is the maximum clock frequency supported by the 24LC08B-I/ST?
The 24LC08B-I/ST supports I2C clock frequencies up to 400kHz (fast-mode). This enables rapid read and write operations, minimizing the time the host microcontroller spends waiting for EEPROM access to complete, which is important in time-critical embedded control loops.
What are the endurance and data retention ratings for the 24LC08B-I/ST?
The 24LC08B-I/ST is rated for 1 million write/erase cycles per memory location with a minimum data retention of 200 years. These specifications ensure that even in applications with frequent data updates, the device will outlast the typical product lifetime without data loss.
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