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

Manufacturer Part Number
24LC512T-I/SN
Manufacturer
Microchip Technology
Allelco Part Number
32D-24LC512T-I/SN
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
17,957 pcs available, New & Original
Parts Description
IC EEPROM 512KBIT I2C 8SOIC
Package
8-SOIC
Data sheet
24LC512T-I/SN.pdf

PCN Design/Specification

Cylindrical Battery Holders.pdf

PCN Assembly/Origin

2.73KHz.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 17957
  • Unit Price: $0.716
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $0.716 $0.72
10+ $0.599 $5.99
30+ $0.534 $16.02
100+ $0.462 $46.20
500+ $0.429 $214.50
1000+ $0.415 $415.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

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

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-SOIC
Series -
Package / Case 8-SOIC (0.154', 3.90mm 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) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.32.0051

Parts Introduction

24LC512T-I/SN Image
24LC512T-I/SN (1)

Manufacturer Part Number

24LC512T-I/SN

Manufacturer

Microchip Technology

Introduction

The 24LC512T-I/SN is a 512Kbit EEPROM from Microchip Technology, utilizing EEPROM technology with an I2C interface for easy integration into various memory storage applications.

Product Features and Performance

Non-volatile EEPROM technology

512Kbit memory size organized as 64K x 8

I2C Memory Interface with a clock frequency of 400 kHz

Write Cycle Time - Word, Page: 5ms

Access Time: 900 ns

Operating Temperature range from -40°C to 85°C

Product Advantages

High storage capacity

Low power consumption supporting 2.5V to 5.5V supply voltage

Durable with an operating temperature range suited for harsh environments

Fast data access and reliable write performance

Key Technical Parameters

Memory Size: 512Kbit

Memory Organization: 64K x 8

Clock Frequency: 400 kHz

Write Cycle Time - Word, Page: 5ms

Access Time: 900 ns

Supply Voltage: 2.5V ~ 5.5V

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Robust construction for reliable data integrity and security

Extended temperature tolerance for high reliability in diverse operating conditions

Compatibility

Compatible with a wide range of microcontrollers and processors that support I2C interface

Application Areas

Consumer Electronics

Industrial Automation

Telecommunications

Automotive Systems

Healthcare devices

Product Lifecycle

The product status is currently active with continual manufacturing support. It's not nearing discontinuation, and replacements or upgrades are available to accommodate future technological advances.

Several Key Reasons to Choose This Product

High capacity and durable memory storage suitable for industrial and consumer applications

Flexible voltage range and low power consumption enhance device compatibility

Fast write and access times facilitate efficient data management

Robust operational temperature range ensures reliability in varied environmental conditions

Stable and consistently supported product lifecycle offering long-term availability

Frequently Asked Questions(FAQ)

How does the 24LC512T-I/SN handle write cycles under typical operating conditions, and what are the practical implications for system reliability?
The 24LC512T-I/SN supports up to 1 million write cycles per memory location, which aligns with standard EEPROM endurance expectations. With a page write time of 5 ms and a 400 kHz I2C interface, sustained writes can introduce noticeable latency in high-frequency logging applications. For systems requiring frequent data updates, such as sensor data buffers or configuration stores, this limits real-time responsiveness unless buffered or throttled. The device's endurance is sufficient for most non-volatile storage tasks like firmware settings, but not for scenarios requiring continuous overwrite operations, such as circular logging at high throughput.
What is the effective data transfer rate of the 24LC512T-I/SN when interfacing via I2C, and how does it compare to SPI-based alternatives in embedded designs?
The 24LC512T-I/SN operates at a maximum I2C clock frequency of 400 kHz, resulting in a theoretical peak bandwidth of approximately 40 KB/s (using 8-bit transfers). This is significantly slower than typical SPI EEPROMs like the Microchip 25LC512, which can reach 10 MHz and offer over 1 MB/s transfer rates. In designs where speed is critical—such as boot-time parameter loading or large firmware updates—this I2C limitation may necessitate architectural changes, such as buffering data in RAM before flash programming. The choice between I2C and SPI often involves trade-offs between pin count, noise immunity, and throughput, with the 24LC512T-I/SN favoring simplicity over performance.
Can the 24LC512T-I/SN be used in automotive or industrial environments requiring extended temperature ranges, and what design precautions are necessary?
The 24LC512T-I/SN is rated from -40°C to 85°C, which covers many industrial applications but falls short of AEC-Q100 Grade 2 requirements (up to 105°C) common in automotive systems. While it can function reliably within its specified range, long-term exposure near the upper limit may accelerate oxide degradation and reduce write endurance. Designers considering use in harsh environments should implement thermal derating, avoid sustained high-write workloads, and include error detection mechanisms such as CRC or checksums for critical data. Additionally, proper PCB layout to minimize parasitic capacitance on SDA/SCL lines is essential for stable I2C communication at temperature extremes.
What is the address space organization of the 24LC512T-I/SN, and how does it affect software implementation for data segmentation?
The 24LC512T-I/SN provides 512 Kbit organized as 64K x 8 bits, giving a total addressable range of 64 kilobytes. This allows for direct byte addressing up to 0x0000–0xFFFF using two address bytes. Software implementations must manage page boundaries (typically 64 bytes per page), as writes larger than one page require multiple transactions or buffering. For applications storing structured data like configuration tables or calibration coefficients, this structure enables efficient random access but requires careful handling to avoid crossing page boundaries during writes, which could extend write duration and increase power consumption.
How does the supply voltage range of 2.5V to 5.5V influence compatibility with modern low-power microcontrollers?
The 24LC512T-I/SN’s wide supply range ensures compatibility with both legacy 5V systems and modern 3.3V or even 1.8V logic families, simplifying mixed-voltage designs. However, interfacing with sub-2.5V MCUs requires level shifting, especially since the device outputs CMOS levels that may not meet input thresholds below 2.5V. At lower voltages, signal integrity on long traces degrades more rapidly, increasing susceptibility to noise. Designers should verify timing margins under minimum VCC and consider pull-up resistor values carefully—too low increases bus capacitance, while too high wastes power. This flexibility supports battery-powered devices but demands attention to interface stability across the full voltage spectrum.
Is the 24LC512T-I/SN suitable for battery-backed data retention, and what are the key failure modes to monitor?
Yes, the 24LC512T-I/SN is well-suited for battery-backed retention due to its non-volatility and low quiescent current. However, lithium coin cells degrade over time, reducing backup voltage and potentially causing incomplete write operations or corruption during brownout events. A common failure mode is partial data loss if the battery voltage drops below 2.5V mid-write cycle. Implementing a supercapacitor or larger backup capacitor alongside the battery can extend retention duration. Monitoring VCC via an ADC or reset supervisor can alert the system to impending power loss, enabling graceful shutdown or redundancy checks before critical data is lost.
How does the Moisture Sensitivity Level (MSL) rating of 3 for the 24LC512T-I/SN impact manufacturing and shelf life management?
With an MSL rating of 3 and a floor life of 168 hours, the 24LC512T-I/SN must be stored in dry ambient conditions or sealed packaging to prevent moisture absorption prior to reflow soldering. If exposed beyond 168 hours at 30°C/60% RH, it requires baking at 125°C for 24 hours before processing to avoid popcorning during thermal cycling. This requirement applies regardless of package type, including SOIC variants like the 8-SOIC used here. Manufacturers must track lot codes and ensure compliance with IPC/JEDEC standards, particularly for high-volume production where traceability and process control are essential to maintain reliability.
What are the key differences between the 24LC512T-I/SN and the 24LC256 in terms of capacity and application suitability?
The 24LC512T-I/SN offers 512 Kbit (64KB) compared to the 24LC256’s 256 Kbit (32KB), effectively doubling available storage. This makes the 24LC512T-I/SN appropriate for applications requiring larger configuration databases, firmware patches, or multi-parameter logging, whereas the 24LC256 suffices for simpler setups like user preferences or calibration offsets. Both share similar I2C interfaces, voltage ranges, and package options, so board footprint and electrical characteristics remain comparable. However, software managing larger datasets must account for increased read/write times and potential fragmentation when accessing non-contiguous blocks across the expanded address space.
How does the access time of 900 ns affect real-time performance in microcontroller-based systems using the 24LC512T-I/SN?
The 900 ns access time refers to typical read latency from the moment an I2C command is issued until data appears on the bus. While fast enough for most non-time-critical reads, this delay becomes significant in tight control loops or interrupt-driven sampling routines where minimizing jitter is essential. For example, reading sensor values every 1 ms introduces up to 10% overhead from EEPROM access alone. Designers might mitigate this by caching frequently accessed data in SRAM or using shadow registers. The access time also influences maximum achievable throughput when chaining multiple reads, as each transaction includes start/stop conditions and ACK/NACK phases that add fixed overhead beyond raw data transfer.
What considerations apply when cascading multiple 24LC512T-I/SN devices on the same I2C bus for expanded storage?
Cascading multiple 24LC512T-I/SN devices requires assigning unique 7-bit I2C addresses via hardware pins (A0, A1, A2), allowing up to eight devices on a single bus. Each device consumes static current and adds propagation delay, potentially affecting rise times on long buses. Pull-up resistors must be sized to balance speed against power draw, especially when multiple devices are active simultaneously. Software must manage address arbitration and ensure atomicity during concurrent accesses. Additionally, simultaneous writes to different devices can cause bus contention if not coordinated. While feasible, such configurations increase complexity and risk; alternatives like serial-to-parallel expanders or higher-speed memory types may offer better scalability for large-data applications.

Parts with Similar Specifications

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

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

24LC512T-I/SN Datasheet PDF

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

Datasheets
Cylindrical Battery Holders.pdf
PCN Design/Specification
Cylindrical Battery Holders.pdf
PCN Packaging
Label and Packing Changes 23/Sep/2015.pdf MBB/Label Chgs 16/Nov/2018.pdf
PCN Assembly/Origin
2.73KHz.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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Region Country Logistic Time(Day)
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Brazil 7
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New Zealand 5
Asia India 4
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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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24LC512T-I/SN Image

24LC512T-I/SN

Microchip Technology
32D-24LC512T-I/SN

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

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