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Microchip Technology 24LC00/ST
- Part No.:
- 24LC00/ST
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
24LC00/ST.pdf
- Description:
- IC EEPROM 128BIT I2C 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,607
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Product details
Overview
24LC00/ST 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 24LC00/ST datasheet, 24LC00/ST pinout, 24LC00/ST application, or 24LC00/ST equivalent, this page delivers verified electrical specs, package mapping, I²C timing compliance, endurance (1M cycles), and real-world use context - all confirmed against Microchip DS20001178J.
Technical Context
The 24LC00/ST functions as an I²C slave device with fixed 4-bit device code '1010' and three don't-care address bits, enabling up to eight devices on one bus. Its internal address pointer auto-increments during sequential reads and supports byte write, current address read, random read, and sequential read modes.
It integrates Schmitt-trigger inputs and input filtering (50 ns spike suppression) for robust noise immunity, slope-controlled outputs to minimize ground bounce, and a VCC threshold detector that disables write operations below 2.5V. Write cycles are self-timed (typ. 3 ms, max 4 ms) and include ACK polling support for bus efficiency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 128-bit (16 × 8) EEPROM array - sufficient for small configuration tokens or unique identifiers without over-provisioning. |
| Supply voltage | 2.5V to 5.5V - compatible with 3.3V and 5V systems; excludes 1.8V operation (reserved for 24AA00 variant). |
| I²C speed | 100 kHz (full VCC range) and 400 kHz (VCC ≥ 4.5V) - enables flexible timing budgeting in mixed-speed embedded buses. |
| Write endurance | 1 million erase/write cycles - validated via characterization; supports long-term field recalibration or logging. |
| Data retention | 200 years at +85°C - ensures firmware-embedded calibration data remains valid across product lifecycle. |
| Standby current | 100 nA typical - enables multi-year battery operation in always-on sensor nodes or IoT endpoints. |
| ESD protection | >4000 V HBM - provides robust handling margin during board assembly and field service. |
Pinout & Package
24LC00/ST is available in multiple industry-standard packages including 8-lead PDIP, SOIC, TSSOP, DFN, TDFN, and 5-lead SOT-23. The SOT-23 variant uses a 5-pin configuration optimized for ultra-compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCL | Serial Clock input | Synchronizes all I²C transactions; requires external pull-up; Schmitt-triggered for noise immunity. |
| SDA | Bidirectional serial data I/O | Open-drain output; must be externally pulled up (2 kΩ for 400 kHz, 10 kΩ for 100 kHz); supports ACK/NACK signaling. |
| VCC | Positive supply | 2.5V–5.5V input; internal VCC detector prevents writes below 2.5V to avoid data corruption. |
| VSS | Ground reference | System return path; exposed pad on DFN/TDFN packages may be connected to VSS for thermal/electrical stability. |
| NC | No-connect terminal | Unbonded pin in SOT-23 (Pin 4); electrically isolated - must not be tied to any net. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | 0.05 × VCC hysteresis on SCL/SDA - rejects sub-50 ns noise spikes without external RC filtering. |
| Output slope control | Controlled rise/fall times per I²C spec - eliminates ground bounce in shared VSS domains. |
| Page write time | 3 ms typical - enables rapid parameter updates without blocking host MCU for extended periods. |
| ACK polling support | Master can poll completion via repeated Start + control byte - avoids fixed delays and maximizes bus throughput. |
| Pb-free & RoHS | Compliant per JEDEC standards - meets global environmental regulations for commercial and industrial shipments. |
Applications
| Smart Sensor Calibration | Industrial PLC Configuration |
|---|---|
Use Scenario: Storing factory-trimmed offset/gain coefficients for analog sensor front-ends in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessed at power-up via I²C; no timing-critical latency required. Use Value: Eliminates need for external trim pots or OTP fuses; enables post-manufacturing calibration and field recalibration. |
Use Scenario: Holding user-defined I/O mapping tables and communication protocol settings in modular automation controllers. IC Role / Device Role / Timing Role: Slave EEPROM on main controller's I²C bus; accessed during boot and runtime reconfiguration. Use Value: Supports field-upgradable logic configurations without firmware reflashing or hardware changes. |
| Medical Device Serial Numbering | Consumer Appliance Identity Storage |
Use Scenario: Recording unique device ID, manufacturing date, and regulatory certification codes in Class II diagnostic instruments. IC Role / Device Role / Timing Role: Secure identity register accessed once per boot; write-protected after programming. Use Value: Meets FDA UDI traceability requirements with tamper-resistant, long-retention storage. |
Use Scenario: Storing model-specific feature enable bits and regional compliance flags in smart home appliances. IC Role / Device Role / Timing Role: Low-pin-count I²C slave on appliance SoC bus; read at startup to configure UI and safety logic. Use Value: Enables single-hardware SKU across global markets with software-defined regional variants. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA00-I/P | Lower VCC min (1.8V), same 128-bit capacity and I²C interface; identical pinout and timing. | Required for 1.8V–2.4V systems where 24LC00/ST cannot operate. | Select 24AA00-I/P when supply voltage drops below 2.5V; otherwise 24LC00/ST offers better noise margin at 3.3V/5V. |
| AT24C01C-SSHM-T | 1-Kbit (128 × 8) capacity, same VCC range (2.5V–5.5V), AEC-Q200 qualified for automotive. | Higher density and automotive qualification - suitable for next-gen designs needing scalability or E-grade support. | Choose AT24C01C-SSHM-T if future-proofing for larger data sets or automotive qualification is required; 24LC00/ST remains optimal for minimal-footprint, cost-sensitive industrial use. |
Compared with 24AA00-I/P and AT24C01C-SSHM-T, the 24LC00/ST delivers the narrowest VCC window (2.5V–5.5V) but highest noise immunity at 3.3V/5V due to tighter VIH/VIL thresholds and integrated filtering - making it ideal for stable industrial power rails where ultra-low-voltage operation is unnecessary.
Availability
24LC00/ST is available at Aetrix Electronics and suitable for smart sensor calibration, industrial PLC configuration, medical device serialization, and consumer appliance identity storage requiring stable component supply across production lifecycles.
Supply support for 24LC00/ST 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 components, and memory solutions, serving industrial, automotive, and consumer markets with high-reliability silicon and development tools.
The 24LC00/ST belongs to Microchip's legacy 24XX00 family of ultra-low-power serial EEPROMs, engineered specifically for minimal-footprint, low-energy nonvolatile storage in resource-constrained embedded systems.
FAQ
What is the minimum operating voltage for the 24LC00/ST?
The 24LC00/ST requires a minimum supply voltage of 2.5V, as specified in its DC characteristics table. Unlike the 24AA00 variant, it is not rated for operation down to 1.8V. Attempting to power the 24LC00/ST below 2.5V may result in unreliable I²C communication or failed write cycles due to internal VCC threshold detection disabling programming logic.
Does the 24LC00/ST support standard I²C addressing?
Yes, the 24LC00/ST uses the standard I²C 7-bit slave address format with a fixed 4-bit device code '1010' followed by three don't-care bits, allowing up to eight devices on the same bus. The R/W bit determines operation mode, and the device responds with ACK only when not busy with an internal write cycle.
How many write cycles can the 24LC00/ST endure?
The 24LC00/ST is characterized for more than 1 million erase/write cycles. This value is not tested per unit but ensured through process characterization and reliability modeling, supporting long-term field deployment in applications requiring periodic parameter updates.
What package options are available for the 24LC00/ST?
The 24LC00/ST is offered in 8-lead PDIP, SOIC, TSSOP, DFN, TDFN, and 5-lead SOT-23 packages. The SOT-23 variant (5-pin) is particularly suited for space-constrained designs, while DFN/TDFN packages include an exposed pad that may be connected to VSS for improved thermal performance.
Is the 24LC00/ST RoHS compliant?
Yes, the 24LC00/ST is Pb-free and RoHS compliant per Microchip's packaging specifications. The part marking includes the Pb-free JEDEC designator (e3) on eligible packages, and full compliance documentation is available in Microchip's packaging specification documents.
24LC00/ST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
24LC00/ST FAQ
1.How can I place an order for 24LC00/ST through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC00/ST 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 24LC00/ST reliable?
The price and inventory of 24LC00/ST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC00/ST is usually 5 days.
3.What payment methods are accepted for 24LC00/ST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC00/ST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC00/ST?
24LC00/ST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC00/ST 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 24LC00/ST?
For technical support, including 24LC00/ST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC00/ST requirements.
6.How does Aetrix verify that 24LC00/ST is sourced from the original manufacturer or authorized distributors?
All 24LC00/ST 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 24LC00/ST meets industry standards.
7.What is the process for return or replacement of 24LC00/ST?
All 24LC00/ST units undergo pre-shipment inspection (PSI). If there is an issue with 24LC00/ST, 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 24LC00/ST part is unused and in its original packaging.
Return procedure for 24LC00/ST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24LC00/ST Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
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