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Microchip Technology 24LC02BT-I/MC
- Part No.:
- 24LC02BT-I/MC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-VFDFN Exposed Pad
- Datasheet:
-
24LC02BT-I/MC.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:9,089
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Product details
Overview
24LC02BT-I/MC from Microchip Technology Inc. is a 2-Kbit I²C-compatible serial EEPROM organized as 256 × 8-bit memory with hardware write-protection, 8-byte page buffer, and operation down to 2.5V. It supports 400 kHz clock frequency, delivers ≤1 mA active current and ≤1 µA standby current (I-temp), and targets embedded system configuration storage in industrial temperature environments.
For engineers reviewing the 24LC02BT-I/MC datasheet, 24LC02BT-I/MC pinout, 24LC02BT-I/MC application, or 24LC02BT-I/MC equivalent, key selection factors include VCC range (2.5–5.5V), I²C timing compliance (THIGH ≥600 ns, TLOW ≥1300 ns), WP-controlled full-array write protection, and MC package compatibility with 8-lead DFN footprint.
Technical Context
The 24LC02BT-I/MC 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 current-address, random, and sequential read modes without external addressing logic.
Write operations support byte and page modes (up to 8 bytes per page), with self-timed erase/write cycles completing in ≤5 ms. Acknowledge polling allows host systems to detect write completion without fixed delays, optimizing bus throughput in real-time applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2 Kbit (256 × 8-bit) - sufficient for device ID, calibration data, or small firmware patches |
| VCC Range | 2.5V to 5.5V - compatible with 3.3V and 5V logic domains without level shifting |
| Max Clock Frequency | 400 kHz - supports standard-mode I²C with typical 10 kΩ pull-ups |
| Page Write Buffer | 8 bytes - reduces I²C transaction count for multi-byte updates |
| Write Cycle Time | ≤5 ms - deterministic programming latency for time-critical configuration writes |
| Endurance | 1,000,000 cycles - suitable for frequent logging or parameter tuning in field-deployed equipment |
| Data Retention | >200 years - ensures long-term reliability in unpowered storage scenarios |
Pinout & Package
24LC02BT-I/MC uses an 8-lead DFN (Dual Flat No-lead) package with wettable flanks, measuring 2 mm × 3 mm, optimized for automated optical inspection and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Address Input | No internal connection - may be left floating or tied to VSS/VCC without affecting operation |
| A1 | Address Input | No internal connection - no impact on device addressing or functionality |
| A2 | Address Input | No internal connection - unused per device architecture |
| VSS | Ground | Reference return path for all signals and power; must be low-impedance |
| SDA | Serial Data I/O | Open-drain bidirectional bus line requiring external pull-up resistor (2–10 kΩ) |
| SCL | Serial Clock Input | Master-generated clock synchronizing all I²C transfers; Schmitt-trigger input rejects noise |
| WP | Write-Protect Input | Active-high enable: tied to VCC blocks all writes; tied to VSS enables full read/write access |
| VCC | Power Supply | Primary supply rail (2.5–5.5V); decoupling capacitor (0.1 µF) required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Write-Protection | Single-pin (WP) enables or disables entire memory array - eliminates software lockout risks |
| Schmitt Trigger Inputs | Input hysteresis ≥0.05×VCC - rejects bus noise up to 50 ns spikes without external filtering |
| Output Slope Control | Controlled SDA/SCL edge rates - prevents ground bounce in mixed-signal systems |
| I²C Compatibility | Fully compliant with standard-mode (100 kHz), fast-mode (400 kHz), and SMBus protocols |
| Low-Power Operation | 1 µA max standby current at -40°C to +85°C - extends battery life in always-on monitoring nodes |
Applications
| Industrial Sensor Calibration Storage | Medical Device Configuration Memory |
|---|---|
Use Scenario: Storing factory-calibrated sensor offset/gain coefficients and linearization tables in pressure or temperature transmitters. IC Role / Device Role / Timing Role: Nonvolatile configuration store accessed during power-up or recalibration routines via I²C. Use Value: Ensures measurement accuracy across temperature ranges without requiring reprogramming after power loss. | Use Scenario: Holding user-selectable therapy parameters, alarm thresholds, and device serialization data in portable infusion pumps. IC Role / Device Role / Timing Role: Secure, tamper-resistant memory for FDA-regulated configuration data with WP pin enforced write-lock during operation. Use Value: Prevents accidental or malicious parameter corruption while enabling authorized updates via controlled WP control. |
| Automotive Body Control Module NVM | Smart Energy Meter Firmware Patch Storage |
Use Scenario: Retaining seat/mirror position presets, lighting profiles, and door lock settings in AEC-Q100-compliant body controllers. IC Role / Device Role / Timing Role: Automotive-grade EEPROM interfacing with microcontroller I²C peripheral under extended temperature (-40°C to +125°C). Use Value: Meets AEC-Q100 Grade 1 requirements and provides >200-year data retention for lifetime vehicle use. | Use Scenario: Storing field-upgradable firmware patches and tariff schedule updates in utility-grade electricity meters. IC Role / Device Role / Timing Role: High-endurance (1M cycle) nonvolatile storage for infrequent but critical code updates over 20+ year deployments. Use Value: Eliminates need for external flash programming infrastructure by enabling in-system patching via existing I²C service interface. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA02T-I/MC | Wider VCC range (1.7–5.5V); lower 100 kHz max clock below 2.5V; same 2-Kbit capacity and MC package | Supports battery-powered systems operating down to 1.7V; not rated for 400 kHz above 2.5V | Select when ultra-low-voltage operation is required and clock speed can be reduced below 2.5V |
| AT24C02D-SSHM-T | Same 2-Kbit size, 2.5–5.5V range, and SOIC-8 package; supports 1 MHz clock; higher 3 mA max ICCWRITE | Enables faster writes in high-throughput systems; requires tighter layout for 1 MHz signal integrity | Select when 1 MHz I²C bandwidth is needed and higher active current is acceptable |
Compared with 24LC02BT-I/MC, the 24AA02T-I/MC offers broader voltage flexibility at the cost of speed below 2.5V, while the AT24C02D-SSHM-T trades higher power for 2.5× faster clock support - making 24LC02BT-I/MC optimal for stable 3.3V/5V industrial designs prioritizing low standby current and proven 400 kHz interoperability.
Availability
24LC02BT-I/MC is available at Aetrix Electronics and suitable for industrial sensor calibration, medical device configuration, automotive body control modules, and smart energy meter firmware patch storage requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 24LC02BT-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 components, and memory solutions, serving industrial, automotive, and consumer markets with high-reliability semiconductor products.
The 24LC02B family is designed for robust, low-power nonvolatile data storage in space-constrained embedded systems where I²C interface simplicity, hardware write protection, and AEC-Q100 qualification are essential.
FAQ
What is the maximum clock frequency supported by the 24LC02BT-I/MC?
24LC02BT-I/MC supports a maximum clock frequency of 400 kHz across its full operating voltage range (2.5V to 5.5V). This is specified in the Device Selection Table and confirmed in AC Characteristics Table 1-2, where FCLK is rated at 400 kHz for VCC ≥2.5V. The device does not support 1 MHz operation - that capability is exclusive to the 24FC02 variant.
Does the 24LC02BT-I/MC require external pull-up resistors on SDA and SCL lines?
Yes, the 24LC02BT-I/MC requires external pull-up resistors on both SDA and SCL lines because these pins are open-drain. The datasheet recommends 10 kΩ for 100 kHz operation and 2 kΩ for 400 kHz. Without proper pull-ups, I²C communication will fail due to inability to drive high logic levels.
How does the WP pin function on the 24LC02BT-I/MC?
On the 24LC02BT-I/MC, the WP (Write-Protect) pin is an active-high input. When tied to VCC, it inhibits all write operations to the entire memory array (addresses 00h–FFh), while read operations remain fully functional. When tied to VSS, normal read/write access is enabled. This hardware-level protection prevents accidental overwrites without software intervention.
What package type does the 24LC02BT-I/MC use, and what are its key mechanical features?
24LC02BT-I/MC uses an 8-lead DFN package (Microchip designation "MC"). It measures 2 mm × 3 mm with wettable flanks, enabling reliable solder joint inspection via AOI. The exposed pad is optional and may be connected to VSS or left floating, per Package Marking Information section on page 14 of DS20001709N.
Is the 24LC02BT-I/MC qualified for automotive applications?
Yes, the 24LC02BT-I/MC is AEC-Q100 qualified for automotive applications. The datasheet explicitly states "Automotive AEC-Q100 Qualified" in the Features section and lists "I, E" temperature ranges - confirming suitability for Grade 1 (-40°C to +125°C) automotive environments such as body control modules and infotainment subsystems.
24LC02BT-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:
- 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:
- 8-DFN (2x3)
24LC02BT-I/MC FAQ
1.How can I place an order for 24LC02BT-I/MC through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC02BT-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 24LC02BT-I/MC reliable?
The price and inventory of 24LC02BT-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 24LC02BT-I/MC is usually 5 days.
3.What payment methods are accepted for 24LC02BT-I/MC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC02BT-I/MC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC02BT-I/MC?
24LC02BT-I/MC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC02BT-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 24LC02BT-I/MC?
For technical support, including 24LC02BT-I/MC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC02BT-I/MC requirements.
6.How does Aetrix verify that 24LC02BT-I/MC is sourced from the original manufacturer or authorized distributors?
All 24LC02BT-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 24LC02BT-I/MC meets industry standards.
7.What is the process for return or replacement of 24LC02BT-I/MC?
All 24LC02BT-I/MC units undergo pre-shipment inspection (PSI). If there is an issue with 24LC02BT-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 24LC02BT-I/MC part is unused and in its original packaging.
Return procedure for 24LC02BT-I/MC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24LC02BT-I/MC Tags
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AT24C02C-XHM-T
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