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HomeProductsIntegrated Circuits (ICs)Memory24LC512T-I/MS
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24LC512T-I/MS - Microchip Technology

Manufacturer Part Number
24LC512T-I/MS
Manufacturer
Microchip Technology
Allelco Part Number
98D-24LC512T-I/MS
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
5,442 pcs available, New & Original
Parts Description
IC EEPROM 512KBIT I2C 8MSOP
Package
8-MSOP
Data sheet
24LC512T-I/MS.pdf
RoHs Status
ROHS3 Compliant
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In stock: 5442

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Specifications

24LC512T-I/MS Tech Specifications
Microchip Technology - 24LC512T-I/MS technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology - 24LC512T-I/MS

Product Attribute Attribute Value
Manufacturer Microchip Technology
Write Cycle Time - Word, Page 5ms
Voltage - Supply 2.5V ~ 5.5V
Technology EEPROM
Supplier Device Package 8-MSOP
Series -
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Package Tape & Reel (TR)
Operating Temperature -40°C ~ 85°C (TA)
Product Attribute Attribute Value
Mounting Type Surface Mount
Memory Type Non-Volatile
Memory Size 512Kbit
Memory Organization 64K x 8
Memory Interface I²C
Memory Format EEPROM
Clock Frequency 400 kHz
Base Product Number 24LC512
Access Time 900 ns

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.32.0051

Frequently Asked Questions(FAQ)

How does the 24LC512T-I/MS compare to other I2C EEPROMs in terms of memory density and interface speed when designing a data logging system with frequent write cycles?
The 24LC512T-I/MS offers 512Kbit (64K x 8) of non-volatile memory organized as a single byte-wide interface, which supports efficient sequential writes ideal for data logging applications. With an I2C clock frequency of 400 kHz, it provides moderate throughput suitable for systems requiring periodic data storage without high-speed serial demands. Compared to higher-density alternatives like 1Mbit devices, it balances capacity with manageable write cycle endurance, though its 5ms page write time may limit performance in high-throughput scenarios. The 900 ns access time ensures fast read operations between writes, making it well-suited for real-time monitoring systems where latency must remain below 1 µs.
What are the key electrical constraints when integrating the 24LC512T-I/MS into a 3.3V microcontroller design, and how do supply voltage tolerances impact signal integrity?
The 24LC512T-I/MS operates over a supply range of 2.5V to 5.5V, allowing direct interfacing with 3.3V microcontrollers without level shifting under normal conditions. However, the absolute maximum rating for VCC is not specified beyond this range, so transient brownouts below 2.5V may corrupt data or cause write failures. The device’s input thresholds are designed to be compatible with standard logic levels at 3.3V, but noise margins degrade near the lower boundary—particularly during write cycles when internal charge pumps activate. Designers should ensure stable power delivery with decoupling capacitors close to the MSOP package pins to prevent false ACKs or bus contention due to voltage droop during 5ms write periods.
In what scenarios would the MSL 1 classification of the 24LC512T-I/MS justify extended storage duration before PCB assembly, and what handling precautions apply during automated pick-and-place?
With an Moisture Sensitivity Level (MSL) of 1, the 24LC512T-I/MS can be stored indefinitely without baking, even in humid environments, provided packaging integrity remains intact. This simplifies supply chain logistics for long-term projects. During automated assembly, however, cumulative exposure to ambient humidity over several months could still lead to popcorning if reels are opened prematurely. Best practice dictates sealing unused portions in desiccated bags with indicators and maintaining storage below 60% relative humidity. The 8-MSOP package’s small footprint also requires precise nozzle alignment to avoid damage from vacuum inconsistencies common in high-speed placement equipment.
How does the 512Kbit memory organization of the 24LC512T-I/MS influence wear leveling strategies compared to smaller EEPROMs like the 24C64?
The 64K x 8 structure of the 24LC512T-I/MS allows larger logical blocks per page write, reducing the number of erase cycles needed to distribute writes across memory sectors. Unlike the 24C64 (8K x 8), which forces more frequent sector erasures due to limited capacity, this part supports longer-lived applications by minimizing address remapping overhead. However, the fixed 32-byte page size still necessitates software-level wear leveling for critical data, especially if the application exceeds the typical 1 million write cycles per byte rating. The larger array also enables simpler circular buffer implementations without complex mapping tables, improving firmware simplicity at the cost of slightly higher standby current due to increased cell leakage.
Can the 24LC512T-I/MS reliably function in industrial temperature ranges without derating, and what environmental factors might compromise its reliability despite RoHS compliance?
Yes, the 24LC512T-I/MS is rated from -40°C to 85°C, making it suitable for most industrial environments without performance degradation. However, prolonged operation near the upper limit accelerates oxide layer stress in floating-gate transistors, potentially reducing write endurance below datasheet specifications. While RoHS3 compliance eliminates hazardous substances, exposure to corrosive atmospheres or excessive vibration can degrade solder joint integrity in the TSSOP variant despite the MSOP’s superior thermal dissipation. Thermal cycling between extremes may also induce microcracks in the silicon die, particularly if the PCB experiences differential expansion. These effects are subtle but measurable over 10+ year lifespans.
What trade-offs exist between using the 24LC512T-I/MS versus SPI-based flash memory in embedded systems requiring both low pin count and moderate data retention?
The 24LC512T-I/MS uses only two control lines (SDA/SCL), offering significant pin savings over SPI flash, which typically requires four signals including chip select. This makes the I2C interface advantageous in space-constrained designs. However, SPI flash generally offers faster random access (often <100 ns vs. 900 ns) and higher sustained write speeds, benefiting applications like firmware updates. The EEPROM’s byte-wise write granularity avoids full-sector erasures required by some SPI NOR flashes, simplifying small-data modifications. For systems prioritizing simplicity and minimal wiring over peak bandwidth, the 24LC512T-I/MS strikes a reasonable balance, though its 400 kHz I2C limit caps effective throughput at ~40 KB/s in worst-case addressing scenarios.
How should system designers validate the 24LC512T-I/MS’s compatibility with their custom PCB layout to avoid I2C timing violations during repeated write bursts?
Layout parasitics such as trace inductance and capacitance can distort SDA/SCL edges, especially when routing near noisy digital traces. To maintain reliable communication, keep I2C lines short (<10 cm), use series termination resistors (~1 kΩ) near the MCU, and avoid parallel routing with clock domains above 1 MHz. The 24LC512T-I/MS requires tSU;DAT > 100 ns and tHD;DAT > 0 ns per I2C spec, so signal rise times exceeding 300 ns may violate setup requirements at 400 kHz. Simulation using IBIS models or empirical probing with an oscilloscope can verify slew rates. Additionally, ensure pull-up resistor values match VDD (e.g., 4.7 kΩ at 3.3V) to keep bus idle voltage above VIH(min).
Why might the 24LC512T-I/MS be preferred over battery-backed SRAM despite lacking volatile memory advantages in certain embedded control applications?
Although SRAM offers instant writes and zero access latency, the 24LC512T-I/MS eliminates battery dependency while providing unlimited write endurance in non-critical data paths. In motor control systems where configuration parameters must persist through power loss without backup power, the EEPROM’s inherent non-volatility ensures safe state preservation. The 512Kbit capacity also accommodates longer parameter logs or calibration tables that exceed typical SRAM footprints. Furthermore, the absence of refresh cycles simplifies firmware, and the 2.5–5.5V operating range enhances compatibility with diverse power rails. The primary trade-off—slower writes—is acceptable in contexts where data isn’t updated every interrupt cycle.
What role does the 900 ns access time play in real-time system performance when polling the 24LC512T-I/MS after a power-on reset sequence?
The 900 ns access time indicates the maximum delay from chip select assertion to valid data output, enabling rapid response in deterministic control loops. After POR, a host microcontroller can initiate an immediate read within 1 µs, avoiding lengthy initialization delays common with slower serial memories. This latency is dominated by internal addressing decoding rather than protocol overhead, so burst reads benefit less than single-byte accesses. In safety-critical systems requiring sub-millisecond recovery, this metric ensures the 24LC512T-I/MS doesn’t become a bottleneck during boot-up routines, provided the I2C master supports clock stretching and proper arbitration.
How do substitute parts like CAT24C512XI-T2 affect long-term supply planning when sourcing the 24LC512T-I/MS equivalents from multiple vendors?
Substitutes such as the CAT24C512XI-T2 offer similar functionality but may differ in packaging (e.g., SOIC vs. MSOP), temperature grades, or I2C addressing modes. Cross-referencing these variants requires verifying pin compatibility and electrical characteristics, as minor deviations in hold times or write pulse widths can destabilize existing firmware. The Microchip 24LC512T-I/MS specifically uses hardware addressing via A0–A2 pins, whereas some CMOS variants implement software addressing, altering command sequences. Designers should audit substitutes against original timing diagrams and conduct regression testing under worst-case conditions, including temperature extremes and supply glitches, to avoid field failures due to unanticipated behavioral differences.

Parts with Similar Specifications

The three parts on the right have similar specifications to Microchip Technology 24LC512T-I/MS

Product Attribute 24LC512T-I/SMG 24LC512T-I/ST16KVAO 24LC512T-I/SN 24LC512T-I/ST14
Part Number 24LC512T-I/SMG 24LC512T-I/ST16KVAO 24LC512T-I/SN 24LC512T-I/ST14
Manufacturer Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Memory Organization - - - -
Voltage - Supply - - - -
Memory Interface - - - -
Memory Type - - - -
Write Cycle Time - Word, Page - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Memory Size - - - -
Access Time - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Memory Format - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Technology - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Series - - - -
Clock Frequency - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Package - Tape & Reel (TR) Tube Tape & Reel (TR)

24LC512T-I/MS Datasheet PDF

Download 24LC512T-I/MS pdf datasheets and Microchip Technology documentation for 24LC512T-I/MS - Microchip Technology.

PCN Packaging
Packing Changes 10/Oct/2016.pdf Label and Packing Changes 23/Sep/2015.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
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Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


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24LC512T-I/MS Image

24LC512T-I/MS

Microchip Technology
98D-24LC512T-I/MS

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