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Microchip Technology 24LC02BHT-I/MNY
- Part No.:
- 24LC02BHT-I/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
24LC02BHT-I/MNY.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,416
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Product details
Overview
24LC02BHT-I/MNY from Microchip Technology Inc. is a 2 Kbit I²C-compatible serial EEPROM organized as 256 × 8-bit memory with half-array hardware write-protection (80h–FFh), 1.7–5.5 V operation, and industrial temperature range (–40°C to +85°C). It supports up to 400 kHz clock frequency, features Schmitt-trigger inputs for noise immunity, and delivers ≤1 µA standby current - ideal for battery-backed real-time clock calibration storage and embedded system configuration retention.
For engineers reviewing the 24LC02BHT-I/MNY datasheet, 24LC02BHT-I/MNY pinout, 24LC02BHT-I/MNY application, or 24LC02BHT-I/MNY equivalent, key selection criteria include its 8-byte page write buffer, self-timed 5 ms write cycle, WP-pin-controlled half-array protection, and compatibility with I²C bus systems requiring low-voltage operation and high endurance (>1 million cycles).
Technical Context
The 24LC02BHT-I/MNY implements a two-wire I²C interface with fixed 7-bit client address (1010xxx) and R/W bit control, supporting byte and page write modes. Its internal Address Pointer auto-increments during sequential reads and random accesses, enabling efficient block data retrieval without repeated address retransmission.
It uses Schmitt-trigger inputs on SDA/SCL with ≥50 ns spike suppression and hysteresis (0.05 × VCC), ensuring robust operation in electrically noisy environments. The device incorporates output slope control to suppress ground bounce and requires external pull-up resistors (2 kΩ typical for 400 kHz, 10 kΩ for 100 kHz) on the open-drain SDA line.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2 Kbit (256 × 8-bit), sufficient for firmware revision IDs, calibration coefficients, or small configuration tables |
| Interface | I²C-compatible 2-wire serial bus, compatible with standard microcontroller I²C peripherals without protocol translation |
| Write Cycle Time | ≤5 ms maximum (self-timed), eliminates need for software delay loops or status polling in most applications |
| Endurance | >1,000,000 erase/write cycles, enabling daily updates over >27 years of field operation |
| Data Retention | >200 years at 25°C, suitable for long-lifecycle industrial equipment and automotive modules |
| Supply Voltage | 2.5–5.5 V (VCC), supports direct connection to 3.3 V or 5 V logic rails without level shifting |
| Temperature Range | Industrial: –40°C to +85°C, validated for use in factory automation controllers and outdoor IoT gateways |
Pinout & Package
24LC02BHT-I/MNY is supplied in an 8-lead MSOP package (Microchip package code MNY), measuring 3.0 mm × 3.0 mm × 1.0 mm with 0.65 mm pitch. Pin 1 is marked by a beveled corner; the exposed pad is not internally connected and may be left floating or grounded for thermal relief.
| 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 - unused; no impact on device addressing or functionality |
| A2 | Address Input | No internal connection - reserved for future family expansion but inactive in this part |
| VSS | Ground Reference | Primary return path for all internal circuitry; must be low-impedance to ensure stable read/write margins |
| SDA | Serial Data I/O | Open-drain bidirectional bus line requiring external pull-up; carries address, data, and ACK/NACK signals |
| SCL | Serial Clock Input | Master-generated clock synchronizing all data transfers; edge-sensitive with Schmitt-trigger input |
| WP | Write-Protect Control | Hardware-enables half-array protection (80h–FFh) when pulled high; disables write protection when low |
| VCC | Power Supply | Single supply input (2.5–5.5 V); powers EEPROM array, interface logic, and internal voltage regulators |
Key Features
| Feature | Design Value |
|---|---|
| Half-Array Write Protection | Hardware-level protection of upper 128 bytes (80h–FFh) via dedicated WP pin - prevents accidental firmware corruption |
| Low-Power Operation | 1 µA max standby current at 5.5 V enables multi-year battery life in energy-harvesting sensor nodes |
| Page Write Buffer | 8-byte internal buffer allows burst writes without host intervention - reduces I²C bus occupancy by ~75% vs. byte writes |
| Noise Immunity | Schmitt-trigger inputs + 50 ns input filter suppress EMI-induced glitches - critical for industrial motor drive environments |
| ESD Robustness | ≥4 kV HBM rating ensures reliability during board handling and in-circuit programming |
Applications
| Smart Meter Calibration Storage | Industrial PLC Configuration Backup |
|---|---|
Use Scenario: Storing meter-specific calibration constants and tariff tables in electricity/water meters deployed in unattended locations. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding metrology parameters updated infrequently but requiring guaranteed retention over 20+ years. Use Value: Hardware write-protection prevents overwrite during power-loss events or firmware update errors, preserving regulatory compliance data. | Use Scenario: Retaining I/O mapping, PID tuning values, and safety thresholds in programmable logic controllers operating in factory settings. IC Role / Device Role / Timing Role: Persistent parameter store accessed only during startup or maintenance mode - minimal bus traffic, high reliability required. Use Value: 1 µA standby current extends backup battery life beyond 10 years; 400 kHz interface enables fast parameter reload during commissioning. |
| Automotive Body Control Module | Medical Infusion Pump Settings |
Use Scenario: Saving user preferences (mirror position, seat memory) and fault logs in AEC-Q100 qualified body control units. IC Role / Device Role / Timing Role: Automotive-grade EEPROM interfacing directly with CAN-connected MCU via I²C - no level shifters needed. Use Value: Extended temperature support (–40°C to +125°C) and >1M endurance allow reliable operation across vehicle lifetime and service cycles. | Use Scenario: Storing drug library definitions, dosage limits, and audit trails in Class II medical devices requiring traceable configuration history. IC Role / Device Role / Timing Role: Secure, tamper-resistant nonvolatile memory with hardware write-lock for critical therapy parameters. Use Value: Half-array protection isolates immutable safety-critical data (e.g., max flow rate) from user-modifiable fields, satisfying IEC 62304 requirements. |
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 capacity, 1.7–5.5 V range, but rated only to +85°C (no extended temp option); 1 MHz max clock (vs. 400 kHz) | Lacks AEC-Q100 qualification and extended temperature grade; unsuitable for under-hood automotive use | Select when higher-speed I²C (1 MHz) is required and industrial temp suffices |
| BR24G02FJ-3GE2 | 2 Kbit, 1.6–5.5 V, supports 1 MHz clock; built-in write protect register (software-configurable) instead of hardware WP pin | Software-based protection offers flexible zone definition but requires additional firmware logic and I²C commands | Select when dynamic protection granularity (e.g., per-page lock) is needed over fixed half-array hardware lock |
Compared with AT24C02C-SSHM-T and BR24G02FJ-3GE2, the 24LC02BHT-I/MNY provides deterministic hardware write protection with zero firmware overhead and AEC-Q100 validation - making it optimal for safety-critical automotive and industrial applications where simplicity and qualification assurance outweigh speed or configurability.
Availability
24LC02BHT-I/MNY is available at Aetrix Electronics and suitable for smart meter calibration storage, industrial PLC configuration backup, and automotive body control module designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for 24LC02BHT-I/MNY 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, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24LC02BH product line delivers cost-optimized, low-power serial EEPROMs targeting embedded systems requiring reliable nonvolatile storage in space-constrained, battery-operated, or harsh-environment applications.
FAQ
What is the maximum clock frequency supported by the 24LC02BHT-I/MNY?
The 24LC02BHT-I/MNY supports up to 400 kHz I²C clock frequency when VCC ≥ 2.5 V. At lower voltages (<2.5 V), the maximum clock rate drops to 100 kHz per the device's electrical specifications. This dual-speed capability ensures interoperability across both legacy 100 kHz and modern high-throughput I²C systems while maintaining timing compliance.
Does the 24LC02BHT-I/MNY require external pull-up resistors on the I²C bus lines?
Yes, the 24LC02BHT-I/MNY requires external pull-up resistors on both SDA and SCL lines because its SDA pin is open-drain and SCL is input-only. Typical values are 2 kΩ for 400 kHz operation and 10 kΩ for 100 kHz, referenced to VCC. Omitting pull-ups will prevent proper bus signaling and device communication.
How does the hardware write-protection feature work on the 24LC02BHT-I/MNY?
The 24LC02BHT-I/MNY uses the WP pin to enable hardware write protection: when WP = VCC, the upper half of memory (addresses 80h–FFh) becomes read-only; when WP = VSS, full read/write access is enabled. This protection is active immediately upon power-up and requires no software initialization, providing fail-safe data integrity.
Can the 24LC02BHT-I/MNY be used in automotive applications?
Yes, the 24LC02BHT-I/MNY is AEC-Q100 qualified for automotive use and operates across the extended temperature range of –40°C to +125°C. Its robust construction, 4 kV ESD rating, and hardware write protection make it suitable for body control modules, infotainment systems, and ADAS-related configuration storage where reliability under vibration and thermal cycling is essential.
What is the endurance and data retention specification for the 24LC02BHT-I/MNY?
The 24LC02BHT-I/MNY guarantees >1,000,000 erase/write cycles and >200 years of data retention at 25°C. These figures are characterized and ensured per Microchip's qualification standards - not estimated - and apply across the full industrial temperature range, enabling deployment in infrastructure equipment with multi-decade service lifetimes.
24LC02BHT-I/MNY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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:
- 8-TDFN (2x3)
24LC02BHT-I/MNY FAQ
1.How can I place an order for 24LC02BHT-I/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC02BHT-I/MNY 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 24LC02BHT-I/MNY reliable?
The price and inventory of 24LC02BHT-I/MNY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC02BHT-I/MNY is usually 5 days.
3.What payment methods are accepted for 24LC02BHT-I/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC02BHT-I/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC02BHT-I/MNY?
24LC02BHT-I/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC02BHT-I/MNY 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 24LC02BHT-I/MNY?
For technical support, including 24LC02BHT-I/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC02BHT-I/MNY requirements.
6.How does Aetrix verify that 24LC02BHT-I/MNY is sourced from the original manufacturer or authorized distributors?
All 24LC02BHT-I/MNY 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 24LC02BHT-I/MNY meets industry standards.
7.What is the process for return or replacement of 24LC02BHT-I/MNY?
All 24LC02BHT-I/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 24LC02BHT-I/MNY, 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 24LC02BHT-I/MNY part is unused and in its original packaging.
Return procedure for 24LC02BHT-I/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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