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Microchip Technology 24LC02B-I/S15K
- Part No.:
- 24LC02B-I/S15K
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- Die
- Datasheet:
-
24LC02B-I/S15K.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ DIE
- Quantity:
- Payment:
- Shipping:
Inventory:3,332
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Product details
Overview
24LC02B-I/S15K from Microchip Technology Inc. is a 2-Kbit I²C-compatible serial EEPROM organized as 256 × 8-bit memory with hardware write-protection, 400 kHz max clock frequency, 2.5V–5.5V supply range, and industrial temperature rating (–40°C to +85°C). It supports page writes up to 8 bytes and delivers <1 µA standby current for low-power embedded systems including sensor nodes and IoT edge devices.
For engineers reviewing the 24LC02B-I/S15K datasheet, 24LC02B-I/S15K pinout, 24LC02B-I/S15K application, or 24LC02B-I/S15K equivalent, key selection criteria include I²C timing compliance at 2.5V, WP pin behavior under VCC tie-high, endurance (1M cycles), data retention (>200 years), and compatibility with standard 8-lead SOIC footprint and layout.
Technical Context
The 24LC02B-I/S15K implements a two-wire I²C interface with Schmitt-trigger inputs and slope-controlled outputs to suppress noise and eliminate ground bounce. Its internal address pointer enables sequential, random, and current-address read modes without external addressing logic.
It uses an on-chip HV generator for EEPROM programming and features self-timed erase/write cycles with automatic page-buffer management. Write protection is implemented via a dedicated WP pin tied to VCC to inhibit all write operations while permitting full read access.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2 Kbit (256 × 8-bit) - fixed single-block organization; no block select required in address byte. |
| Interface | I²C-compatible two-wire serial - requires only SDA and SCL lines; supports 100 kHz (at VCC < 2.5V) and 400 kHz (at VCC ≥ 2.5V). |
| Supply Voltage | 2.5V–5.5V - minimum 2.5V operation limits use in ultra-low-voltage systems; not rated below 2.5V. |
| Write Cycle Time | 5 ms maximum - defines worst-case delay before next valid command; applies to both byte and page writes. |
| Endurance | 1,000,000 erase/write cycles - validated at 25°C/5.5V; critical for firmware logging or configuration storage with frequent updates. |
| Data Retention | >200 years - guaranteed under industrial temperature conditions; ensures long-term reliability in unattended deployments. |
| Standby Current | 1 µA maximum (I-temp.) - enables battery-powered operation for years when device is idle but powered. |
Pinout & Package
24LC02B-I/S15K is supplied in an 8-lead SOIC package (SOIC, 3.90 mm body width, JEDEC MS-012). Pin 1 is marked with a beveled corner or dot; orientation follows standard SOIC top-view labeling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Address Input | No internal connection - may be left floating or tied to VSS/VCC; does not affect device addressing. |
| A1 | Address Input | No internal connection - identical function to A0; unused in 24LC02B family. |
| A2 | Address Input | No internal connection - all three address pins are unconnected; device responds only to fixed 7-bit address 0x50. |
| VSS | Ground Reference | Primary return path for all internal circuitry; must be connected to system GND plane for stable operation. |
| SDA | Serial Data I/O | Open-drain bidirectional line - requires external pull-up resistor (2 kΩ typical for 400 kHz); carries address, data, and ACK/NACK signals. |
| SCL | Serial Clock Input | Input-only clock line - synchronizes all data transfers; host generates all SCL edges; Schmitt trigger input rejects noise. |
| WP | Write-Protect Control | Dedicated hardware lock - tied to VCC to disable all writes (00–FF addresses); tied to VSS for full read/write access. |
| VCC | Power Supply | Single positive supply - powers EEPROM array, logic, and I/O buffers; must remain within 2.5V–5.5V during all operations. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Write-Protection | WP pin provides immediate, non-volatile lock of entire memory array - eliminates risk of accidental overwrites in field-deployed systems. |
| Page Write Buffer | 8-byte internal buffer enables burst writes without host intervention - reduces bus occupancy and improves firmware update efficiency. |
| Schmitt Trigger Inputs | SDA and SCL inputs reject noise spikes >50 ns - ensures reliable communication on electrically noisy PCBs or long traces. |
| Low-Voltage Operation | Functional down to 2.5V - supports direct integration with 3.3V and 5V microcontrollers without level-shifting. |
| ESD Robustness | >4,000V HBM - protects against handling damage and transient events in manufacturing and end-user environments. |
Applications
| Industrial Sensor Calibration | Medical Device Configuration |
|---|---|
Use Scenario: Storing factory-calibrated sensor offsets and gain coefficients in programmable logic controllers and environmental monitors. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed during power-up or recalibration routines via I²C; no timing-critical latency requirements. Use Value: Ensures consistent measurement accuracy across product lifetime; retains calibration data through 1M+ power cycles and >200-year shelf life. | Use Scenario: Holding user-selectable therapy parameters and safety thresholds in portable infusion pumps and diagnostic handhelds. IC Role / Device Role / Timing Role: Secure, tamper-resistant parameter store; WP pin prevents runtime corruption during clinical operation. Use Value: Meets IEC 62304 software safety requirements; 1 µA standby current extends battery life between recharges. |
| Automotive Body Control Module | Smart Home Gateway Firmware Log |
Use Scenario: Recording door lock actuation history and mirror position presets in 12V automotive subsystems. IC Role / Device Role / Timing Role: Persistent event logger interfaced to MCU via I²C; operates across –40°C to +85°C ambient range. Use Value: AEC-Q100 qualified for automotive use; withstands repeated thermal cycling and vibration without data loss. | Use Scenario: Capturing boot diagnostics, OTA update status, and network handshake failures in Wi-Fi/Zigbee gateways. IC Role / Device Role / Timing Role: Low-overhead, wear-leveling-free log buffer; 8-byte page writes minimize bus contention during high-frequency events. Use Value: Enables field failure root-cause analysis without adding MCU RAM overhead or flash wear penalties. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C02C-SSHM-T | Same 2-Kbit size, 1.7V–5.5V VCC range, and 400 kHz I²C speed; includes 1.8V logic compatibility not supported by 24LC02B-I/S15K. | Preferred where system operates below 2.5V (e.g., 1.8V MCUs); lacks AEC-Q100 qualification. | Select if wider voltage range or lower-voltage support is required; verify WP pin behavior matches design intent. |
| BR24G02FJ-3GE2 | 2-Kbit I²C EEPROM with 1.6V–5.5V operation, 1 MHz max clock, and built-in write-cycle suspend/resume - not present in 24LC02B-I/S15K. | Better suited for real-time systems requiring interruptible writes; higher ESD rating (6 kV HBM). | Choose for applications needing faster writes or dynamic write suspension; confirm SOIC-8 mechanical compatibility. |
Compared with AT24C02C-SSHM-T and BR24G02FJ-3GE2, the 24LC02B-I/S15K offers proven industrial temperature stability and AEC-Q100 qualification at 2.5V–5.5V, making it optimal for cost-sensitive, thermally demanding embedded control where sub-2.5V operation is unnecessary.
Availability
24LC02B-I/S15K is available at Aetrix Electronics and suitable for industrial sensor calibration, medical device configuration, and automotive body control modules requiring stable component supply across extended production lifecycles.
Supply support for 24LC02B-I/S15K 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 U.S.-based semiconductor company specializing in microcontrollers, analog devices, and memory products, with global manufacturing and quality certifications including ISO 9001 and IATF 16949.
The 24LC02B belongs to Microchip's legacy 24XX02 EEPROM family designed for robust, low-power, I²C-based nonvolatile storage in space-constrained industrial and automotive applications where reliability and long-term data integrity are critical.
FAQ
What is the minimum operating voltage for the 24LC02B-I/S15K?
The 24LC02B-I/S15K requires a minimum supply voltage of 2.5V, as specified in its DC characteristics table. Unlike the 24AA02 or 24FC02 variants, it is not rated for operation below 2.5V - attempting to power it at 1.8V or 2.2V will result in undefined behavior or functional failure. This limitation is inherent to the device's process and internal charge pump design.
Does the 24LC02B-I/S15K support multi-master I²C bus configurations?
Yes, the 24LC02B-I/S15K fully supports multi-master I²C buses per the standard I²C specification. Its open-drain SDA and SCL pins, combined with arbitration-aware protocol handling (including clock stretching during internal write cycles), allow safe coexistence with other masters. However, the host MCU must implement proper arbitration and collision detection logic per I²C spec.
How does the WP pin function on the 24LC02B-I/S15K?
On the 24LC02B-I/S15K, the WP pin is a hardwired write-inhibit control: when tied to VCC, all write operations (byte and page) to the entire 256-byte memory array are blocked, while read operations remain fully functional. When tied to VSS or left floating, full read/write access is enabled. No internal pull-up or pull-down is present.
Can the 24LC02B-I/S15K be used in AEC-Q100-compliant automotive designs?
Yes, the 24LC02B-I/S15K is explicitly AEC-Q100 qualified for Grade 2 (–40°C to +105°C) and Grade 3 (–40°C to +125°C) operation, and the "I" suffix in its part number denotes industrial temperature grade (–40°C to +85°C), which satisfies most body electronics requirements. Full qualification documentation is available in Microchip's AEC-Q100 test reports.
What is the maximum page write size supported by the 24LC02B-I/S15K?
The 24LC02B-I/S15K supports a maximum page write size of 8 bytes, aligned to physical page boundaries starting at addresses 0x00, 0x08, 0x10, etc. Attempting to write across a boundary (e.g., starting at 0x07) causes wraparound within the same page - data intended for address 0x0F would overwrite 0x00 instead of writing to the next page.
24LC02B-I/S15K 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:
- 2Kbit
- Memory Organization:
- 256 x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 900 ns
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Die
24LC02B-I/S15K FAQ
1.How can I place an order for 24LC02B-I/S15K through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC02B-I/S15K 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 24LC02B-I/S15K reliable?
The price and inventory of 24LC02B-I/S15K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC02B-I/S15K is usually 5 days.
3.What payment methods are accepted for 24LC02B-I/S15K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC02B-I/S15K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC02B-I/S15K?
24LC02B-I/S15K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC02B-I/S15K 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 24LC02B-I/S15K?
For technical support, including 24LC02B-I/S15K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC02B-I/S15K requirements.
6.How does Aetrix verify that 24LC02B-I/S15K is sourced from the original manufacturer or authorized distributors?
All 24LC02B-I/S15K 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 24LC02B-I/S15K meets industry standards.
7.What is the process for return or replacement of 24LC02B-I/S15K?
All 24LC02B-I/S15K units undergo pre-shipment inspection (PSI). If there is an issue with 24LC02B-I/S15K, 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 24LC02B-I/S15K part is unused and in its original packaging.
Return procedure for 24LC02B-I/S15K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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