24LC512-I/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
24LC512-I/ST is a 512 Kbit (64K x 8) I2C serial EEPROM from Microchip operating from 2.5 V, offering up to 400 kHz clock and 1,000,000 write/erase cycle endurance. Features hardware address selection for up to 8 devices on a single 2-wire bus with 200-year data retention minimum. Packaged in compact TSSOP-8 for space-constrained embedded designs.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 24LC512-I/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.4963(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
- 512 Kbit capacity (64K x 8) with 1,000,000 write/erase cycle endurance for long-life data logging
- 400 kHz I2C fast-mode support with hardware address pins enabling up to 8 devices on a single 2-wire bus
- 2.5 V to 5.5 V operating voltage range with 200-year minimum data retention for robust non-volatile storage
Applications
The 24LC512-I/ST is well suited for embedded systems requiring non-volatile storage of configuration data, calibration tables, and event logs in industrial sensors, medical devices, and consumer electronics. Its 2-wire I2C interface and broad voltage range simplify integration with microcontrollers and SoCs, while the 8-device addressability supports modular system designs requiring large cumulative storage capacity.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TSSOP-8 |
| Factory Lead Time | 8Weeks |
| YTEOL | 9 |
| Clock Frequency-Max (fCLK) | 0.4MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| I2C Control Byte | 1010DDDR |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Memory Density | 524288bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Words | 65536words |
| Number of Words Code | 64000 |
| Operating Mode | SYNCHRONOUS |
| Organization | 64KX8 |
| Output Characteristics | OPEN-DRAIN |
| 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 |
| Programming Voltage | 5V |
| Qualification Status | Not Qualified |
| Serial Bus Type | I2C |
| Standby Current-Max | 0.000001A |
| Supply Current-Max | 0.005mA |
| 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) - annealed |
| 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 |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
| Country of Origin | Mainland China, Philippines, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 24LC512-I/ST:
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Frequently Asked Questions
How many 24LC512-I/ST devices can share a single I2C bus, and what determines the address of each?
Up to 8 devices can share a single I2C 2-wire bus by using the three hardware address pins (A0, A1, A2) to assign each a unique 3-bit address. The I2C control byte format is 1010DDDR, where DDD represents the three address pin states. This scheme allows 8 × 64 KB = 512 KB of combined addressable EEPROM capacity on one bus without additional glue logic.
What write endurance and data retention specs should designers consider when using 24LC512-I/ST for configuration storage?
The 24LC512-I/ST guarantees a minimum endurance of 1,000,000 write/erase cycles per memory cell and at least 200 years of data retention, making it reliable for storing device configuration and calibration data over product lifetimes. Applications that update data frequently should monitor write cycles to avoid exceeding the endurance limit across hot spots.
How does the 24LC512-I/ST clock frequency limit affect system throughput in data-logging applications?
The maximum I2C clock frequency of 400 kHz (fast mode) limits sequential write throughput to approximately 50 KB/s accounting for protocol overhead. For burst-logging applications generating more than a few kilobytes per second, the designer must buffer data in SRAM and write during idle periods, or select a higher-speed SPI EEPROM alternative such as Microchip's 25LC512.
What supply voltage range does the 24LC512-I/ST support, and is it compatible with 3.3 V microcontrollers?
The 24LC512-I/ST operates from 2.5 V to 5.5 V, making it fully compatible with 3.3 V and 5 V microcontroller systems without level-shifting circuitry. The -I suffix denotes industrial temperature coverage from -40°C to +85°C, ensuring reliable operation in thermally demanding enclosures and outdoor deployments.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.4963 | $1.50 |
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