Microchip Technology 24LC00T-I/MC
- Part No.:
- 24LC00T-I/MC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-VFDFN Exposed Pad
- Datasheet:
-
24LC00T-I/MC.pdf
- Description:
- IC EEPROM 128BIT I2C 8DFN
- Quantity:
- Payment:

- Shipping:

Inventory:3,367
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Product details
Overview
24LC00T-I/MC from Microchip Technology Inc. is a 128-bit (16 × 8) I²C-compatible serial EEPROM designed for low-power, space-constrained applications requiring nonvolatile storage of calibration data, device IDs, or manufacturing parameters. It operates from 2.5V to 5.5V, draws only 500 µA typical read current and 100 nA typical standby current, and supports 100 kHz/400 kHz clock rates in industrial temperature range (–40°C to +85°C).
For engineers reviewing the 24LC00T-I/MC datasheet, 24LC00T-I/MC pinout, 24LC00T-I/MC application, or 24LC00T-I/MC equivalent, key selection criteria include its 5-pin SOT-23 package, I²C slave addressing with fixed 4-bit device code '1010', self-timed 3 ms write cycle, Schmitt-trigger noise immunity on SDA/SCL, and guaranteed >1 million erase/write cycles with >200-year data retention.
Technical Context
The 24LC00T-I/MC implements a true I²C-bus slave interface with open-drain SDA/SCL pins, requiring external pull-up resistors. Its internal address pointer enables current-address, random, and sequential read modes, while ACK polling allows bus-efficient write-cycle completion detection without fixed delays.
It features integrated Schmitt-trigger inputs and input filtering (50 ns spike suppression), slope-controlled outputs to minimize ground bounce, and a VCC threshold detector that disables write operations below 2.5V - ensuring data integrity during brown-out conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 128 bits (16 words × 8 bits); sufficient for small configuration or identification data without over-provisioning. |
| Supply voltage | 2.5V to 5.5V; compatible with 3.3V and 5V systems, but not 1.8V - distinguishes it from 24AA00 variant. |
| Interface | I²C-compatible 2-wire serial bus; requires no additional protocol logic or level-shifting in standard implementations. |
| Write time | 3 ms typical page write; enables rapid parameter updates without blocking host MCU for extended periods. |
| Endurance | 1 million erase/write cycles; supports frequent field calibration or logging in industrial monitoring applications. |
| Data retention | 200+ years at +85°C; ensures long-term reliability in unattended or maintenance-free deployments. |
| ESD protection | >4 kV HBM; provides robustness against handling and board-level electrostatic discharge events. |
Pinout & Package
24LC00T-I/MC is packaged in a 5-lead SOT-23 surface-mount package (Microchip drawing C04-028D [OT]), with pin 1 marked and pin 5 as VCC. The exposed pad is not electrically connected and may be left floating or grounded per layout requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SCL) | Serial Clock input | Asynchronous master-generated clock; synchronizes all data transfers; Schmitt-triggered for noise immunity. |
| 2 (VSS) | Ground reference | Return path for all internal circuitry and I/O; must be low-impedance to support stable EEPROM operation. |
| 3 (SDA) | Serial Data bidirectional I/O | Open-drain bus line; requires external pull-up; carries addresses, data, and ACK/NACK signals. |
| 4 (NC) | No-connect | Internally unconnected; must remain unconnected on PCB to avoid unintended coupling or leakage paths. |
| 5 (VCC) | Power supply | Supplies core logic and memory array; includes built-in brown-out detection disabling writes below 2.5V. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | 0.05×VCC hysteresis on SDA/SCL; rejects noise spikes up to 50 ns, eliminating need for external RC filtering. |
| Output slope control | Controlled rise/fall times on SDA; prevents ground bounce and signal integrity issues in dense layouts. |
| Self-timed write cycle | No external timing components required; internal timer terminates write after ~3 ms, freeing host MCU resources. |
| ACK polling support | Host can poll readiness via repeated Start + control byte (R/W=0); avoids fixed delay loops and maximizes bus throughput. |
| Pb-free & RoHS compliant | Meets global environmental compliance standards; qualified for industrial reflow profiles without lead contamination risk. |
Applications
| Industrial Sensor Calibration | Consumer Device ID Storage |
|---|---|
Use Scenario: Storing factory-trimmed offset/gain coefficients in temperature or pressure sensors. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed at power-up via I²C by sensor MCU. Use Value: Enables plug-and-play accuracy without host-side calibration routines; leverages 200-year retention for lifetime device validity. |
Use Scenario: Holding unique serial numbers and firmware version identifiers in smart home hubs or wearables. IC Role / Device Role / Timing Role: I²C slave providing immutable identity data during boot sequence or OTA update verification. Use Value: Uses only 16 bytes of storage - minimal footprint matches SOT-23 package constraints while meeting traceability mandates. |
| Medical Diagnostic Tool Settings | Automotive Aftermarket Module Configuration |
Use Scenario: Saving user-selected measurement units, alarm thresholds, and display preferences in portable ECG monitors. IC Role / Device Role / Timing Role: Low-power EEPROM retaining settings across battery swaps and deep-sleep cycles. Use Value: 100 nA standby current extends battery life; 2.5V minimum VCC ensures compatibility with Li-ion single-cell supplies. |
Use Scenario: Storing CAN node address, baud rate, and feature enable flags in OBD-II adapters. IC Role / Device Role / Timing Role: Configuration memory initialized once during first power-on and rarely rewritten. Use Value: 1M endurance exceeds expected field lifetime; industrial temp rating (–40°C to +85°C) covers under-hood environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA00T-I/MC | Lower 1.8V min VCC; identical 128-bit capacity, SOT-23 package, and I²C interface. | Better suited for 1.8V/2.5V battery-powered systems where 24LC00T-I/MC cannot operate. | Select 24AA00T-I/MC only if supply voltage drops below 2.5V; otherwise, 24LC00T-I/MC offers same functionality with higher noise margin. |
| AT24C01C-SSHM-T | 1 Kbit (128 × 8) capacity; same 5-pin SOT-23 package; 1.7V–5.5V VCC; supports 1 MHz I²C. | Higher density and faster clock support - appropriate when future expansion or higher throughput is anticipated. | Choose AT24C01C-SSHM-T if >128 bits are needed or if system design targets 1 MHz I²C; otherwise, 24LC00T-I/MC minimizes cost and layout area. |
Compared with 24AA00T-I/MC, the 24LC00T-I/MC trades lower-voltage operation for improved noise immunity and tighter VCC regulation; versus AT24C01C-SSHM-T, it offers smaller footprint and lower unit cost for minimal-storage use cases where 128 bits are sufficient.
Availability
24LC00T-I/MC is available at Aetrix Electronics and suitable for industrial sensor calibration, consumer device ID storage, medical diagnostic tool settings, and automotive aftermarket module configuration requiring stable component supply across long production lifecycles.
Supply support for 24LC00T-I/MC includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology Inc. is a leading provider of microcontrollers, analog devices, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing infrastructure.
The 24LC00T-I/MC belongs to Microchip's legacy 24XX00 family of ultra-low-power serial EEPROMs, engineered specifically for cost-sensitive, space-constrained applications needing reliable nonvolatile storage of small critical data sets.
FAQ
What is the minimum operating voltage for the 24LC00T-I/MC?
The 24LC00T-I/MC requires a minimum supply voltage of 2.5V, as specified in the Device Selection Table and Electrical Characteristics section. This distinguishes it from the 24AA00 variant (1.8V min) and ensures stable operation in 3.3V and 5V systems. Operation below 2.5V disables write functionality via an internal VCC threshold detector.
Does the 24LC00T-I/MC support standard I²C addressing?
Yes, the 24LC00T-I/MC uses a fixed 4-bit device code of '1010' followed by three don't-care bits, resulting in a 7-bit slave address of 0x50 (when R/W = 0). It fully complies with I²C bus specifications including START/STOP conditions, ACK/NACK signaling, and clock stretching avoidance during internal write cycles.
How many write cycles can the 24LC00T-I/MC endure?
The 24LC00T-I/MC is rated for more than 1 million erase/write cycles, as confirmed in the Features section and AC Characteristics table. This endurance is ensured through characterization (not 100% tested) and supports frequent field updates in applications like sensor recalibration or configuration tuning over extended service life.
What package type is used for the 24LC00T-I/MC?
The 24LC00T-I/MC is supplied in a 5-lead SOT-23 package (Microchip drawing C04-028D [OT]), with pin 1 designated as SCL and pin 5 as VCC. Pin 4 is NC (no-connect) and must remain unconnected on the PCB. The package is Pb-free and RoHS compliant.
Can the 24LC00T-I/MC be used in automotive applications?
The 24LC00T-I/MC is rated for the industrial temperature range (–40°C to +85°C), not the automotive grade (–40°C to +125°C). While it may function in some under-dash environments, Microchip specifies the 24C00 variant for automotive use. For certified AEC-Q100 compliance, select 24C00E variants instead of 24LC00T-I/MC.
24LC00T-I/MC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 128bit
- Memory Organization:
- 16 x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 4ms
- Access Time:
- 3.5 µs
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (2x3)
24LC00T-I/MC FAQ
1.How can I place an order for 24LC00T-I/MC through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC00T-I/MC on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 24LC00T-I/MC reliable?
The price and inventory of 24LC00T-I/MC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC00T-I/MC is usually 5 days.
3.What payment methods are accepted for 24LC00T-I/MC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC00T-I/MC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC00T-I/MC?
24LC00T-I/MC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC00T-I/MC order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 24LC00T-I/MC?
For technical support, including 24LC00T-I/MC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC00T-I/MC requirements.
6.How does Aetrix verify that 24LC00T-I/MC is sourced from the original manufacturer or authorized distributors?
All 24LC00T-I/MC products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 24LC00T-I/MC meets industry standards.
7.What is the process for return or replacement of 24LC00T-I/MC?
All 24LC00T-I/MC units undergo pre-shipment inspection (PSI). If there is an issue with 24LC00T-I/MC, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 24LC00T-I/MC part is unused and in its original packaging.
Return procedure for 24LC00T-I/MC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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