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HomeProductsIntegrated Circuits (ICs)Specialized ICs24LC512T-I/ST
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24LC512T-I/ST - Microchip

Manufacturer Part Number
24LC512T-I/ST
Manufacturer
Microchip Technology
Allelco Part Number
41D-24LC512T-I/ST
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
11,730 pcs available, New & Original
Parts Description
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Data sheet
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Category
Integrated Circuits (ICs) > Specialized ICs
RoHs Status
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Our certification
In stock: 11730
  • Unit Price: $2.504
  • Subtotal: $0.00

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Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity Unit Price Ext. Price
1+ $2.504 $2.50
10+ $2.195 $21.95
30+ $2.01 $60.30
100+ $1.741 $174.10
500+ $1.654 $827.00
1000+ $1.616 $1,616.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

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

Product Attribute Attribute Value
Part Number 24LC512T-I/ST
Package -
Description -
Stock Condition Get 11730 pcs available quantity at Allelco
Payment PayPal / TT / Credit Card / Western Union
Allelco Certifications ESD / ISO 9001 / ISO 13485 / ISO 28000
Product Attribute Attribute Value
Manufacturer Microchip Technology
RoHs Status -
Warranty 100% Perfect Functions
Transport port Hong Kong
Shipping by DHL / FedEx / UPS / TNT / SF Express
RFQ Email info@allelco.com

Parts Introduction

Manufacturer Part Number

24LC512T-I/ST

Manufacturer

microchip-technology

Introduction

The 24LC512T-I/ST is a high-performance 512Kbit Electrically Erasable Programmable Read-Only Memory (EEPROM) device. It provides a simple and cost-effective way to add non-volatile memory storage to a wide range of electronic devices and systems.

Product Features and Performance

512Kbit (64K x 8) of non-volatile EEPROM memory

I2C interface for easy integration and communication

400kHz maximum clock frequency

5ms typical write cycle time

900ns typical access time

Operates across a wide voltage range of 2.5V to 5.5V

Wide operating temperature range of -40°C to 85°C

Product Advantages

High memory capacity in a small footprint

Reliable and durable EEPROM technology

Low power consumption

Seamless integration with I2C-based systems

Extensive operating temperature range for versatile applications

Key Reasons to Choose This Product

Robust and reliable non-volatile memory solution

Efficient in-system programming and data storage

Scalable memory capacity to meet diverse application needs

Compatibility with a wide range of electronic devices

Cost-effective and energy-efficient operation

Quality and Safety Features

Rigorous quality control and testing

Compliance with industry standards and regulations

Robust design for long-term reliability and durability

Compatibility

The 24LC512T-I/ST is compatible with I2C-based microcontrollers, processors, and other electronic devices that support the I2C communication protocol.

Application Areas

Industrial and automation equipment

Consumer electronics

Automotive electronics

Medical devices

Telecommunication systems

Embedded systems

Product Lifecycle

The 24LC512T-I/ST is an active product, and there are no immediate plans for discontinuation. However, as technology evolves, alternative or equivalent models may become available. Customers are advised to contact our website's sales team for the latest product information and availability.

Frequently Asked Questions(FAQ)

How does the 24LC512T-I/ST's I2C interface clock frequency of 400 kHz compare to standard I2C modes when implementing a high-density data logging system with multiple peripheral sensors?
The 24LC512T-I/ST operates at a 400 kHz fast-mode I2C clock, which enables significantly faster data throughput compared to standard-mode (100 kHz) devices. In a multi-sensor data logging application where each sensor requires periodic writes, this higher clock rate reduces total communication overhead. For example, writing 128 bytes across four sensors would take approximately 5.1 ms at 100 kHz versus 1.3 ms at 400 kHz—reducing latency by nearly 75%. This makes the 24LC512T-I/ST well-suited for real-time systems requiring efficient memory updates without introducing significant bottlenecks.
What is the practical impact of the 24LC512T-I/ST’s 5 ms write cycle time on system-level power consumption and reliability in battery-powered industrial monitoring applications?
A 5 ms write cycle imposes constraints on burst write performance but aligns with typical EEPROM endurance specifications. In battery-operated devices that log sensor data every few seconds, repeated full-page writes could accumulate to hundreds or thousands per day. Given the 24LC512T-I/ST supports up to 1 million write cycles per byte over its lifetime, even aggressive logging schedules are unlikely to exceed safe operating limits. However, designers should avoid continuous streaming writes; instead, batch updates using page write commands (up to 64 bytes per operation) minimize wear and reduce active current draw during write phases, improving overall energy efficiency.
When selecting between surface-mount packages for space-constrained PCB designs, how does the 8-TSSOP form factor of the 24LC512T-I/ST compare to SOIC alternatives in terms of routing density and thermal characteristics?
The 8-TSSOP package (4.40 mm width) offers tighter lead spacing than standard SOIC-8 (typically 5.27 mm), enabling better routing density on compact PCBs. While both packages dissipate similar thermal profiles due to comparable copper area exposure, TSSOP’s smaller footprint allows closer placement near other components. For designs integrating the 24LC512T-I/ST alongside microcontrollers in portable instrumentation, this can reduce board real estate by up to 20% compared to SOIC-8 alternatives, though careful layout must ensure adequate signal isolation from noisy digital lines due to the shared I2C bus topology.
In automotive-grade temperature environments, what design considerations arise when deploying the 24LC512T-I/ST beyond its specified -40°C to +85°C range?
Although the 24LC512T-I/ST is rated for industrial temperatures (-40°C to +85°C), operation outside this range risks data retention failure and increased write degradation. At elevated temperatures above 85°C, charge leakage in the floating gate increases, potentially corrupting stored data after extended periods. Similarly, sub-zero operation slows carrier mobility, which may affect access timing margins. Designers targeting automotive or outdoor applications should include environmental derating: either select a higher-grade EEPROM variant if available, implement error detection via checksums, or use external temperature sensing to suspend non-critical writes during extreme conditions.
How does the 24LC512T-I/ST’s voltage supply range of 2.5V to 5.5V influence compatibility with modern low-voltage microcontrollers like ARM Cortex-M0+ running at 1.8V?
The wide supply range allows seamless integration with mixed-voltage systems. While many microcontrollers operate at 1.8V or 3.3V, the 24LC512T-I/ST accepts down to 2.5V, making it compatible with 3.3V logic but not directly with 1.8V MCUs without level shifting. However, some newer 3.3V MCUs support 2.5V–5.5V I/O, enabling direct connection. When interfacing with 1.8V devices, bidirectional level translators are required on SDA and SCL lines to prevent damage and ensure reliable communication. This flexibility simplifies migration paths in evolving low-power designs.
What are the implications of the 900 ns access time when using the 24LC512T-I/ST as a lookup table memory in high-speed microcontroller firmware?
The 900 ns access time refers to read latency from standby mode, which is acceptable for most firmware applications. However, in tight ISRs or real-time control loops requiring rapid table lookups, this delay could introduce measurable jitter. For instance, reading a 16-byte parameter set takes about 14.4 µs including command overhead, which may be negligible for infrequent accesses but problematic in time-critical contexts. Designers should consider caching frequently used values in SRAM or using faster serial memories if sub-µs response is mandated, reserving the 24LC512T-I/ST for non-time-sensitive storage like configuration parameters.
Can the 24LC512T-I/ST be safely used in systems requiring frequent reconfiguration without risking premature wear-out?
Yes, but with prudent usage patterns. With 1 million program/erase cycles per byte, the 24LC512T-I/ST can endure extensive rewrites under normal conditions. For example, rewriting a 1 KB configuration block 10,000 times equates to only 1% of rated endurance—well within tolerance. However, continuous byte-wise writes without buffering increase wear. Best practice involves grouping changes into page writes (up to 64 bytes) and avoiding unnecessary update cycles. Implementing wear leveling logic in firmware further extends life, especially in field-upgradable devices where flash-like behavior is desired from EEPROM technology.
How does the Moisture Sensitivity Level (MSL) rating of 1 for the 24LC512T-I/ST affect handling procedures during reflow soldering in mass production?
MSL 1 indicates unlimited shelf life before assembly, eliminating the need for baking prior to reflow. This simplifies logistics and reduces costs in high-volume manufacturing involving the 24LC512T-I/ST. Standard IPC/JEDEC guidelines permit immediate processing as long as the component remains within ambient storage conditions. Nevertheless, proper handling practices—such as minimizing exposure to humid environments and using dry packaging—should still be followed to prevent latent moisture absorption, which could compromise reliability even for MSL 1 parts under prolonged storage.
What distinguishes the 24LC512T-I/ST from earlier generations like the 24LC256 in terms of capacity and addressability for embedded firmware storage?
The 24LC512T-I/ST offers 512 Kbit (64 KB) versus the 24LC256’s 256 Kbit (32 KB), effectively doubling available storage. This enables larger firmware images, more complex calibration tables, or richer user settings without resorting to external NOR flash. Both use identical I2C interfaces and page sizes, but the 512K version supports higher internal addressing complexity due to its doubled density. When upgrading from 24LC256 to 24LC512T-I/ST, software must adjust memory maps and address calculations accordingly, though pin compatibility ensures drop-in replacement in many cases.
In a multi-drop I2C network with several EEPROMs, what precautions are necessary to avoid bus contention when accessing the 24LC512T-I/ST?
Each EEPROM on an I2C bus must have a unique hardware address. The 24LC512T-I/ST uses a 7-bit base address (1010xxx), where the three least-significant bits are set via A0, A1, and A2 pins. To support multiple devices, these pins must be tied to distinct logic levels—for example, grounding A0/A1/A2 for one unit and pulling them high for another—ensuring no two devices share the same address. Additionally, pull-up resistors must be sized appropriately for total bus capacitance, and arbitration logic in the master controller handles collision resolution transparently, provided addresses remain unique.
How does the Cut Tape and Digi-Reel packaging options influence procurement strategy and automated assembly for the 24LC512T-I/ST?
Cut Tape suits small-batch prototyping or low-volume runs, allowing individual reel segments to be picked manually or by pick-and-place machines calibrated for taped components. Digi-Reel provides full reels compatible with high-speed automated assembly lines, reducing handling errors and improving throughput. For manufacturers scaling production with the 24LC512T-I/ST, choosing Digi-Reel ensures alignment with SMT equipment standards, while Cut Tape offers flexibility for engineering validation without committing to large quantities.
What role does the 24LC512T-I/ST play in bootloader implementations where non-volatile storage of firmware versions or keys is required?
As a cost-effective non-volatile memory, the 24LC512T-I/ST can securely store firmware metadata such as version numbers, checksums, or cryptographic hashes separate from main code flash. Its I2C interface allows bootloaders to read this data during startup without occupying precious SPI/NOR resources. Since I2C is slower than parallel interfaces, this approach trades speed for simplicity and lower pin count—ideal for resource-constrained MCUs where bootloader functionality must coexist with limited external memory bandwidth.

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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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Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


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We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
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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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Microchip

24LC512T-I/ST

Microchip
41D-24LC512T-I/ST

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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