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Microchip Technology 24LC00/S
- Part No.:
- 24LC00/S
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- Die
- Datasheet:
-
24LC00/S.pdf
- Description:
- IC EEPROM 128BIT I2C DIE
- Quantity:
- Payment:
- Shipping:
Inventory:4,435
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Product details
Overview
24LC00/S 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/S datasheet, 24LC00/S pinout, 24LC00/S application, or 24LC00/S equivalent, this page delivers verified electrical specs, validated I²C timing compliance, confirmed SOT-23-5 package mapping, and two rigorously cross-checked alternative parts - all extracted from Microchip's official DS20001178J datasheet and packaging documentation.
Technical Context
The 24LC00/S functions as an I²C slave device with fixed 4-bit device code '1010' and three don't-care address bits, enabling single-bus addressing without external configuration. Its internal address pointer auto-increments during sequential reads and retains position after byte writes.
It implements Schmitt-trigger inputs and input filtering (50 ns spike suppression) on SDA/SCL pins, plus output slope control to suppress ground bounce. Write cycles are self-timed (max 4 ms), and VCC threshold detection disables programming below 2.5V nominal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 128-bit (16 × 8) EEPROM array - sufficient for small ID strings or calibration offsets without over-provisioning. |
| Supply voltage | 2.5V to 5.5V - compatible with 3.3V and 5V systems; excludes 1.8V operation (reserved for 24AA00). |
| I²C clock rate | 100 kHz / 400 kHz - supports standard-mode and fast-mode timing per I²C specification. |
| Write cycle time | Typical 3 ms, max 4 ms - enables predictable firmware delay budgeting for write completion. |
| Endurance & retention | 1 million erase/write cycles and >200 years data retention - validated for long-life embedded deployments. |
| Standby current | 100 nA typical - critical for battery-backed or energy-harvesting systems where quiescent power dominates lifetime. |
| ESD protection | >4000 V HBM - ensures robustness against handling and board-level transients in industrial environments. |
Pinout & Package
24LC00/S is supplied in 5-lead SOT-23 package (Microchip drawing C04-028D), with pin 1 = SCL, pin 2 = VSS, pin 3 = SDA, pin 4 = NC, pin 5 = VCC. The NC pin is unconnected and must not be tied to any net.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCL (Pin 1) | Serial Clock input | Asynchronous edge-triggered input synchronized internally; requires external pull-up; controls timing of all I²C transfers. |
| VSS (Pin 2) | Ground reference | Primary return path for all internal circuitry and I/O leakage; must be low-impedance connection to system GND plane. |
| SDA (Pin 3) | Bidirectional open-drain data line | Requires external pull-up (2 kΩ for 400 kHz); changes only during SCL low except for Start/Stop conditions. |
| NC (Pin 4) | No connect | Internally unconnected; must remain floating - no routing, no solder mask opening, no thermal pad tie. |
| VCC (Pin 5) | Power supply input | Accepts 2.5–5.5V; includes internal VCC threshold detector that halts writes if voltage drops below 2.5V nominal. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs with 50 ns spike suppression | Eliminates need for external RC filtering on SDA/SCL lines in noisy industrial environments. |
| Output slope control | Prevents ground bounce-induced logic errors during high-speed I²C transitions on shared PCB return paths. |
| Self-timed write cycle with ACK polling support | Enables deterministic bus arbitration - master can poll for completion without fixed timeout delays. |
| Factory programming option | Allows pre-loading of unique identifiers or calibration constants before board assembly, reducing test time. |
| Pb-free and RoHS-compliant packaging | Meets global environmental compliance requirements for industrial and consumer electronics manufacturing. |
Applications
| Smart Sensor Calibration | Industrial Control Module ID |
|---|---|
Use Scenario: Storing factory-trimmed offset/gain coefficients for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration store accessed at power-up via I²C; no timing-critical interaction during runtime. Use Value: Enables plug-and-play sensor replacement without field recalibration; leverages 100 nA standby current to avoid draining backup capacitors. |
Use Scenario: Holding unique serial numbers and revision codes for modular I/O cards in distributed control systems. IC Role / Device Role / Timing Role: Slave EEPROM responding to master controller's I²C address (1010xxx0); accessed infrequently during boot or diagnostics. Use Value: Provides tamper-resistant identity storage with 1M endurance - withstands repeated firmware update logging cycles. |
| Consumer Appliance Settings Backup | Medical Device Usage Log |
Use Scenario: Retaining user preferences (e.g., temperature setpoints, timer values) across AC power loss in HVAC controllers. IC Role / Device Role / Timing Role: Low-power I²C slave writing small data blocks (<16 bytes) during graceful shutdown sequences. Use Value: Guarantees >200-year data retention - exceeds product lifecycle; 2.5V min VCC allows direct interface to 3.3V microcontroller GPIOs. |
Use Scenario: Recording cumulative operational hours and error flags in portable diagnostic equipment with battery backup. IC Role / Device Role / Timing Role: Fail-safe nonvolatile memory accessed only during power-down or maintenance mode; no real-time constraints. Use Value: 4000 V HBM ESD rating ensures reliability during clinical handling; NC pin simplifies layout in tight 5-pin footprints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA00/S | Supports 1.8V–5.5V operation; 500 µA read current same, but lower VCC min enables ultra-low-voltage use cases. | Required where main system rail is <2.5V (e.g., coin-cell-powered devices); otherwise functionally identical in I²C protocol and memory map. | Select 24AA00/S only when 1.8V operation is mandatory; otherwise 24LC00/S offers identical performance at same price point with broader legacy design support. |
| AT24C01A-PU | 1K-bit (128 × 8) capacity; same 2.5–5.5V range and I²C timing; 3 ms write time; 1M endurance. | Provides 8× more memory for applications needing extended parameter sets or firmware metadata - but occupies same 8-pin PDIP footprint, not pin-compatible with SOT-23-5. | Choose AT24C01A-PU only when memory expansion is required and board layout permits 8-pin SOIC/PDIP; not a drop-in replacement for 24LC00/S in SOT-23-5 designs. |
Compared with 24AA00/S and AT24C01A-PU, the 24LC00/S uniquely balances minimal footprint (SOT-23-5), guaranteed 2.5V compatibility, and proven industrial reliability - making it optimal for cost-sensitive, space-constrained designs where 128-bit storage suffices.
Availability
24LC00/S is available at Aetrix Electronics and suitable for smart sensor calibration, industrial control module ID, and consumer appliance settings backup requiring stable component supply across multi-year production cycles.
Supply support for 24LC00/S 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 vertically integrated silicon and development tools.
The 24LC00/S belongs to Microchip's 24XX00 family of ultra-low-power serial EEPROMs, engineered specifically for applications demanding minimal board area, sub-µA standby consumption, and robust I²C interoperability in harsh environments.
FAQ
What is the minimum operating voltage for the 24LC00/S?
The 24LC00/S requires a minimum supply voltage of 2.5V, as specified in the Device Selection Table and DC Characteristics section of the DS20001178J datasheet. Operation below 2.5V is not guaranteed and will disable internal write functionality due to the built-in VCC threshold detector. This distinguishes it from the 24AA00/S, which supports down to 1.8V.
Does the 24LC00/S support fast-mode I²C (400 kHz)?
Yes, the 24LC00/S fully supports 400 kHz I²C communication across its rated voltage range (2.5V–5.5V) and temperature range (–40°C to +85°C), as confirmed in Table 1-2 AC Characteristics. Setup, hold, and rise/fall time specifications are explicitly defined for 400 kHz operation at 4.5–5.5V.
How many write cycles can the 24LC00/S endure?
The 24LC00/S is rated for more than 1 million erase/write cycles, as stated in the Features section and confirmed in Table 1-2 (Note 4). This endurance is ensured by characterization and applies across the full industrial temperature range and recommended voltage conditions.
What is the function of Pin 4 (NC) on the 24LC00/S SOT-23 package?
Pin 4 on the 24LC00/S in SOT-23-5 package is designated NC (No Connect) and is internally unconnected. Per the Pin Function Table (DS20001178J-page 4), it must remain electrically floating - no routing, no grounding, and no connection to power or signal nets. This avoids unintended coupling or latch-up risks.
Is the 24LC00/S RoHS compliant and lead-free?
Yes, the 24LC00/S is Pb-free and RoHS compliant, as explicitly stated in the Features section (DS20001178J-page 1) and confirmed in the Packaging Information section (page 13). The matte tin (Sn) finish meets JEDEC standards, and Pb-free marking appears on outer packaging when space constraints prevent die-level marking.
24LC00/S Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- Die
- Packaging:
- Tray
- 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:
- Die
24LC00/S FAQ
1.How can I place an order for 24LC00/S through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC00/S 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/S reliable?
The price and inventory of 24LC00/S are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC00/S is usually 5 days.
3.What payment methods are accepted for 24LC00/S?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC00/S transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC00/S?
24LC00/S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC00/S 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/S?
For technical support, including 24LC00/S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC00/S requirements.
6.How does Aetrix verify that 24LC00/S is sourced from the original manufacturer or authorized distributors?
All 24LC00/S 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/S meets industry standards.
7.What is the process for return or replacement of 24LC00/S?
All 24LC00/S units undergo pre-shipment inspection (PSI). If there is an issue with 24LC00/S, 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/S part is unused and in its original packaging.
Return procedure for 24LC00/S:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24LC00/S Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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