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Microchip Technology 24LC02BT-I/MNY
- Part No.:
- 24LC02BT-I/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
24LC02BT-I/MNY.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,221
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Product details
Overview
24LC02BT-I/MNY 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, and industrial temperature range (–40°C to +85°C). It operates from 2.5V to 5.5V, supports 8-byte page writes, and is used for configuration storage in embedded controllers and sensor modules.
For engineers reviewing the 24LC02BT-I/MNY datasheet, 24LC02BT-I/MNY pinout, 24LC02BT-I/MNY application, or 24LC02BT-I/MNY equivalent, key selection criteria include VCC range (2.5–5.5V), I²C timing compliance at 400 kHz, WP pin functionality, endurance (>1M cycles), and MNY package compatibility with space-constrained PCB layouts.
Technical Context
The 24LC02BT-I/MNY 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 address latching.
Write operations are self-timed with a maximum 5 ms cycle time; page writes buffer up to 8 bytes before initiating erase/write. The device uses an open-drain SDA bus requiring external pull-up resistors and supports acknowledge polling to detect write completion without fixed delays.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2 Kbit (256 × 8-bit) - fits small firmware patches, calibration data, or device ID storage |
| VCC Range | 2.5V to 5.5V - compatible with 3.3V and 5V logic systems; excludes sub-2.5V operation |
| Max Clock Frequency | 400 kHz - supports standard-mode I²C; not rated for fast-mode (1 MHz) or low-voltage (<2.5V) operation |
| Page Write Buffer | 8 bytes - enables efficient burst writes within a single physical page boundary (0x00–0x07, 0x08–0x0F, etc.) |
| Endurance | 1,000,000 erase/write cycles - suitable for frequent logging or parameter updates in industrial control |
| Data Retention | 200 years - ensures long-term reliability of stored configuration or calibration values |
| Standby Current | 1 µA (I-temp.) - minimizes power draw in battery-backed or energy-sensitive applications |
Pinout & Package
24LC02BT-I/MNY is supplied in an 8-lead UDFN (Wettable Flanks) package, 2 mm × 3 mm, with exposed pad. Pin 1 is A0 (NC), Pin 2 is A1 (NC), Pin 3 is A2 (NC), Pin 4 is VSS, Pin 5 is SDA, Pin 6 is SCL, Pin 7 is WP, and Pin 8 is VCC. The A0–A2 pins are unconnected internally and may be left floating or tied to VSS/VCC without functional impact.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | Address Input (No Connect) | Internally unconnected; no effect on device addressing or operation |
| VSS | Ground Reference | Return path for all internal circuits; must be connected to system ground plane |
| SDA | Serial Data I/O | Open-drain bidirectional bus line; requires external pull-up resistor (2 kΩ typical for 400 kHz) |
| SCL | Serial Clock Input | Master-generated clock synchronizing all I²C transfers; Schmitt-trigger input rejects noise |
| WP | Write-Protect Control | Tied to VCC → full array write-protected; tied to VSS → normal read/write enabled |
| VCC | Power Supply | Supplies core logic and EEPROM array; bypass capacitor (0.1 µF) recommended near pin |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Write-Protection | Single-pin (WP) enables or disables entire memory array - eliminates software lockout risks in field-deployed systems |
| Schmitt Trigger Inputs | Input hysteresis ≥0.05×VCC - ensures reliable signal recognition on noisy industrial buses |
| Output Slope Control | Controlled SDA/SCL rise/fall times - prevents ground bounce that could corrupt adjacent digital signals |
| I²C Bus Compatibility | Fully compliant with standard-mode (100 kHz) and fast-mode (400 kHz) I²C specifications - interoperable with legacy and modern microcontrollers |
| ESD Protection | ≥4,000 V HBM - withstands handling and board-level ESD events without latch-up or parametric shift |
Applications
| Industrial Sensor Calibration | Embedded Controller Configuration |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients for analog sensor front-ends in HVAC or process monitoring equipment. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed during power-up or recalibration routines via I²C. Use Value: Enables field-replaceable sensors without reprogramming host MCU; retains data across 200-year lifetime. | Use Scenario: Holding boot-time configuration flags (e.g., UART baud rate, CAN node ID, display brightness) in programmable logic controllers. IC Role / Device Role / Timing Role: I²C slave providing persistent settings to ARM Cortex-M host during initialization sequence. Use Value: Reduces BOM count by eliminating need for OTP fuses or external flash; supports remote firmware updates with config rollback. |
| Medical Device Parameter Storage | IoT Edge Node Identity |
Use Scenario: Securing unique serial numbers, calibration timestamps, and usage counters in portable diagnostic tools. IC Role / Device Role / Timing Role: Tamper-resistant memory storing audit-trail data written after each clinical measurement session. Use Value: Meets IEC 62304 traceability requirements; WP pin prevents accidental overwrites during routine diagnostics. | Use Scenario: Embedding IEEE 802.1AR device identity (LDevID) and TLS certificate keys in smart metering gateways. IC Role / Device Role / Timing Role: Secure boot-time credential source for cryptographic stack initialization over I²C. Use Value: Provides root-of-trust foundation without requiring dedicated secure element; RoHS-compliant for global deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA02T-I/MNY | Lower VCC min (1.7V), same 400 kHz max, identical MNY package and pinout | Better suited for battery-powered devices operating down to 1.7V; not rated for 2.5V-only systems | Select when supply voltage may dip below 2.5V; verify I²C bus timing margins at lower VCC |
| AT24C02D-SSHM-T | Same 2-Kbit size, 1.7–5.5V range, 1 MHz capable, SOIC-8 package (not MNY) | Requires PCB layout change due to different footprint; higher speed useful only if host supports fast-mode+ | Choose only if SOIC-8 is preferred for manual assembly or legacy board reuse; no electrical advantage for 400 kHz use case |
Compared with 24LC02BT-I/MNY, the 24AA02T-I/MNY offers wider voltage flexibility but identical timing and packaging, while the AT24C02D-SSHM-T demands layout revision and delivers no benefit at 400 kHz - making 24LC02BT-I/MNY optimal for stable 2.5–5.5V industrial designs needing MNY footprint compatibility.
Availability
24LC02BT-I/MNY is available at Aetrix Electronics and suitable for industrial sensor calibration, embedded controller configuration, and medical device parameter storage requiring stable component supply across extended product lifecycles.
Supply support for 24LC02BT-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 24LC02B family was designed specifically for cost-sensitive, space-constrained embedded systems requiring reliable nonvolatile storage with minimal external components and robust I²C interoperability.
FAQ
What is the minimum supply voltage required for reliable operation of the 24LC02BT-I/MNY?
The 24LC02BT-I/MNY requires a minimum VCC of 2.5V for guaranteed operation across its full industrial temperature range (–40°C to +85°C). Operation below 2.5V is not specified and may result in failed writes, incorrect reads, or loss of I²C timing compliance. This distinguishes it from the 24AA02 variant, which supports 1.7V operation.
Does the 24LC02BT-I/MNY support 1 MHz I²C communication?
No, the 24LC02BT-I/MNY is rated for a maximum clock frequency of 400 kHz under all specified conditions. It does not support 1 MHz (fast-mode plus) I²C operation. For 1 MHz capability, consider the 24FC02 family, which is explicitly characterized for 1 MHz across its full voltage and temperature range.
How does the WP pin function on the 24LC02BT-I/MNY?
On the 24LC02BT-I/MNY, the WP (Write-Protect) pin is a logic-level control: when tied to VCC, the entire 256-byte memory array is write-inhibited (read-only); when tied to VSS or left floating (with internal pull-down), full read/write access is enabled. No internal pull-up or pull-down is present, so external connection is mandatory for deterministic behavior.
Can the 24LC02BT-I/MNY be used in automotive applications?
The 24LC02BT-I/MNY is qualified for industrial temperature range (–40°C to +85°C) and is not AEC-Q100 qualified. While some 24LC02B variants (e.g., 24LC02BT-E/MNY) carry AEC-Q100 Grade 2 (–40°C to +105°C) certification, the -I suffix denotes industrial grade only. For automotive use, select the -E or automotive-grade part number explicitly listed as AEC-Q100 qualified.
What package type does the 24LC02BT-I/MNY use, and is it RoHS compliant?
The 24LC02BT-I/MNY uses an 8-lead UDFN (Wettable Flanks) package, 2 mm × 3 mm body with exposed thermal pad. It is RoHS compliant per Microchip's DS20001709N documentation and carries the "3e" JEDEC matte tin finish marking. The wettable flanks enable reliable automated optical inspection (AOI) of solder joints in high-volume SMT assembly.
24LC02BT-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)
24LC02BT-I/MNY FAQ
1.How can I place an order for 24LC02BT-I/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC02BT-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 24LC02BT-I/MNY reliable?
The price and inventory of 24LC02BT-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 24LC02BT-I/MNY is usually 5 days.
3.What payment methods are accepted for 24LC02BT-I/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC02BT-I/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC02BT-I/MNY?
24LC02BT-I/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC02BT-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 24LC02BT-I/MNY?
For technical support, including 24LC02BT-I/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC02BT-I/MNY requirements.
6.How does Aetrix verify that 24LC02BT-I/MNY is sourced from the original manufacturer or authorized distributors?
All 24LC02BT-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 24LC02BT-I/MNY meets industry standards.
7.What is the process for return or replacement of 24LC02BT-I/MNY?
All 24LC02BT-I/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 24LC02BT-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 24LC02BT-I/MNY part is unused and in its original packaging.
Return procedure for 24LC02BT-I/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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