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Microchip Technology AT24C02A-10TI-1.8
- Part No.:
- AT24C02A-10TI-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT24C02A-10TI-1.8.pdf
- Description:
- IC EEPROM 2KBIT I2C 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,411
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Product details
Overview
AT24C02A-10TI-1.8 from Microchip Technology (formerly Atmel) is a 2K-bit (256 × 8) I²C-compatible serial EEPROM optimized for low-voltage embedded systems. It operates from 1.8V to 5.5V, supports 100 kHz clock rate at 1.8V, features hardware write protection via WP pin, and delivers 1 million write cycles with 100-year data retention - ideal for automotive body control modules requiring robust nonvolatile storage under extended temperature.
For engineers reviewing the AT24C02A-10TI-1.8 datasheet, AT24C02A-10TI-1.8 pinout, AT24C02A-10TI-1.8 application, or AT24C02A-10TI-1.8 equivalent, key selection criteria include its 1.8V minimum supply, 8-byte page write capability, Schmitt-triggered noise-immune inputs, TSSOP-8 packaging, and automotive-grade −40°C to +85°C operation.
Technical Context
The AT24C02A-10TI-1.8 implements a two-wire I²C interface with open-drain SDA and edge-triggered SCL, supporting standard-mode (100 kHz) timing at 1.8V. Its internal address counter enables current-address and sequential reads, while hardware address pins A0–A2 allow up to eight devices on one bus.
Write protection is enforced by the WP pin: tied to VCC, it locks the upper 1K-bit half of memory; tied to GND, full read/write access is enabled. The device uses self-timed internal write cycles (≤5 ms), with acknowledge polling supported to monitor completion without fixed delays.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2048 bits (256 × 8), organized in 32 pages of 8 bytes each |
| Supply Voltage Range | 1.8V to 5.5V - enables direct interfacing with 1.8V logic and mixed-voltage systems |
| I²C Clock Rate | 100 kHz at 1.8V - ensures reliable communication in ultra-low-power microcontroller designs |
| Write Endurance | 1,000,000 cycles - supports frequent calibration or logging updates in industrial sensors |
| Data Retention | 100 years at +25°C - guarantees long-term firmware parameter storage without refresh |
| Operating Temperature | −40°C to +85°C - qualified for automotive cabin and under-hood applications |
| Package | 8-lead TSSOP (8A2), 4.4 mm body width - surface-mount compatible with high-density PCB layouts |
Pinout & Package
AT24C02A-10TI-1.8 is housed in an 8-lead Plastic Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153 compliant, with 0.65 mm lead pitch and 4.4 mm body width. Pin 1 is marked by a notch or dot at the top-left corner when viewed from top with marking side up.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A2 | Hardwired Device Address Inputs | Set unique I²C slave address (3-bit); enable up to eight AT24C02A-10TI-1.8 devices on same bus |
| SDA | Serial Data Line | Bidirectional open-drain I²C data line; requires external pull-up resistor (typically 2.2–10 kΩ) |
| SCL | Serial Clock Input | Positive-edge clock input for data transfer; synchronizes all I²C transactions |
| WP | Write Protect Control | Hardware lock: VCC = protect upper 1K-bit; GND = full read/write access |
| VCC | Power Supply | 1.8V–5.5V main supply; powers internal logic and EEPROM array |
| GND | Ground Reference | Return path for all internal circuits and I/O signals |
Key Features
| Feature | Design Value |
|---|---|
| Low-Voltage Operation | Functional down to 1.8V supply - eliminates level-shifting in battery-powered IoT nodes |
| Schmitt-Trigger Inputs | Noise immunity on SCL/SDA/A0–A2 - prevents spurious writes in electrically noisy automotive environments |
| Page Write Capability | 8-byte atomic writes - reduces I²C transaction overhead vs. byte-by-byte programming |
| Hardware Write Protection | WP pin directly gates write enable logic - provides fail-safe firmware parameter lockdown |
| Automotive Qualification | AEC-Q100 stress-tested - meets reliability requirements for non-safety-critical vehicle subsystems |
Applications
| Automotive Body Control Unit | Industrial Sensor Calibration Storage |
|---|---|
Use Scenario: Storing seat position presets, mirror angles, and lighting profiles in vehicle door modules. IC Role / Device Role / Timing Role: Nonvolatile configuration memory accessed via I²C during power-up and user adjustment. Use Value: Enables persistent personalization across ignition cycles without backup battery; 100-year retention ensures lifetime data integrity. | Use Scenario: Holding factory-calibrated offset/gain coefficients for pressure and temperature transducers in factory automation. IC Role / Device Role / Timing Role: Read-once-write-rarely parameter store, updated only during sensor commissioning or recalibration. Use Value: Eliminates need for external calibration EEPROMs; 1M endurance supports field recalibration over product lifetime. |
| Smart Meter Firmware Parameter Backup | Medical Diagnostic Device Configuration |
Use Scenario: Safeguarding tariff tables, billing counters, and communication settings in electricity meters exposed to brownouts. IC Role / Device Role / Timing Role: Critical data backup memory with WP pin permanently tied to VCC to prevent accidental overwrite during firmware updates. Use Value: Guarantees regulatory-compliant metering data persistence even after repeated power loss events. | Use Scenario: Storing user-selected test protocols, display brightness, and language preferences in portable ECG analyzers. IC Role / Device Role / Timing Role: Human-interface configuration store accessed at boot and during menu navigation. Use Value: Supports HIPAA-compliant patient data isolation - parameters retained across sterilization cycles and battery swaps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95020-WMN6TP | 2K-bit SPI interface, 1.8–5.5V, 20 MHz max clock, no WP pin - uses W pin for write enable | Requires SPI host instead of I²C; lacks hardware write protection per memory block | Select when existing design uses SPI peripherals and board layout cannot accommodate I²C pull-ups |
| BR24G02FJ-WE2 | 2K-bit I²C, 1.6–5.5V, 400 kHz @ 1.8V, built-in write protection register (not pin-based) | Software-configurable protection zones; higher speed at same voltage; different pinout (SOIC-8) | Choose for enhanced flexibility in partial-memory locking and faster firmware updates |
Compared with M95020-WMN6TP and BR24G02FJ-WE2, the AT24C02A-10TI-1.8 offers deterministic hardware write protection via dedicated WP pin, guaranteed 100 kHz operation at 1.8V, and TSSOP-8 footprint optimized for space-constrained automotive PCBs - making it preferred where pin-level security and thermal reliability are prioritized over interface flexibility or speed.
Availability
AT24C02A-10TI-1.8 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor calibration, smart metering, and medical device configuration requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AT24C02A-10TI-1.8 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 is a global semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with a focus on embedded control and connectivity.
The AT24C02A-10TI-1.8 belongs to Microchip's legacy serial EEPROM product line, designed specifically for cost-sensitive, low-power, and automotive-qualified nonvolatile data storage in resource-constrained embedded systems.
FAQ
What is the minimum operating voltage for the AT24C02A-10TI-1.8?
The AT24C02A-10TI-1.8 operates down to 1.8V, as confirmed by its "−1.8" suffix and DC characteristics table specifying VCC1 min = 1.8V. This allows direct integration with 1.8V I/O domains without level shifters, and the device maintains full 100 kHz I²C functionality at this voltage - critical for battery-powered applications where supply headroom is constrained.
Does the AT24C02A-10TI-1.8 support page writes, and what is the page size?
Yes, the AT24C02A-10TI-1.8 supports 8-byte page writes, as stated in its Features section and Memory Organization description. Each of its 32 pages holds exactly 8 bytes, enabling efficient multi-byte programming with a single I²C start condition and stop condition - reducing bus overhead by up to 87% compared to individual byte writes.
How does the WP pin function on the AT24C02A-10TI-1.8?
On the AT24C02A-10TI-1.8, the WP pin provides hardware-level write protection: when pulled to VCC, it locks the upper 1K-bit half of memory (addresses 0x080–0x0FF); when grounded, full read/write access is enabled. This behavior is distinct from earlier AT24C02 versions and is documented in Table 2 - ensuring secure storage of critical firmware parameters against accidental overwrite.
What package type is used for the AT24C02A-10TI-1.8?
The AT24C02A-10TI-1.8 uses an 8-lead TSSOP (Thin Shrink Small Outline Package), designated as 8A2 in Microchip's ordering guide. Its 4.4 mm body width, 0.65 mm lead pitch, and JEDEC MO-153 compliance make it suitable for automated SMT assembly and high-density automotive PCB layouts where thermal performance and board space are constrained.
Is the AT24C02A-10TI-1.8 qualified for automotive applications?
Yes, the AT24C02A-10TI-1.8 is explicitly specified for automotive-grade operation across −40°C to +85°C, with "Automotive Grade, Extended Temperature and Lead-Free/Halogen-Free Devices Available" stated in its Features. Its qualification aligns with AEC-Q100 stress testing requirements, making it suitable for non-safety-critical vehicle subsystems such as door modules, climate controls, and infotainment configuration storage.
AT24C02A-10TI-1.8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
AT24C02A-10TI-1.8 FAQ
1.How can I place an order for AT24C02A-10TI-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C02A-10TI-1.8 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 AT24C02A-10TI-1.8 reliable?
The price and inventory of AT24C02A-10TI-1.8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT24C02A-10TI-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C02A-10TI-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C02A-10TI-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C02A-10TI-1.8?
AT24C02A-10TI-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C02A-10TI-1.8 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 AT24C02A-10TI-1.8?
For technical support, including AT24C02A-10TI-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C02A-10TI-1.8 requirements.
6.How does Aetrix verify that AT24C02A-10TI-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C02A-10TI-1.8 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 AT24C02A-10TI-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C02A-10TI-1.8?
All AT24C02A-10TI-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C02A-10TI-1.8, 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 AT24C02A-10TI-1.8 part is unused and in its original packaging.
Return procedure for AT24C02A-10TI-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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