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Microchip Technology AT24C02-10TI-1.8
- Part No.:
- AT24C02-10TI-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT24C02-10TI-1.8.pdf
- Description:
- IC EEPROM 2KBIT I2C 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,760
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Product details
Overview
AT24C02-10TI-1.8 from Microchip Technology (formerly Atmel) is a 2 Kbit (256 × 8) I²C-compatible serial EEPROM optimized for ultra-low-voltage embedded systems. It operates from 1.8 V to 5.5 V, supports 100 kHz I²C bus timing at 1.8 V, features hardware write protection via the WP pin, and delivers 1 million write cycles with 100-year data retention. It is used in battery-powered IoT sensors for nonvolatile parameter storage.
For engineers reviewing the AT24C02-10TI-1.8 datasheet, AT24C02-10TI-1.8 pinout, AT24C02-10TI-1.8 application, or AT24C02-10TI-1.8 equivalent, key selection criteria include 1.8 V minimum supply compatibility, industrial temperature range (−40°C to +85°C), TSSOP-8 packaging, page-write capability (8-byte pages), and I²C address flexibility via A0–A2 pins.
Technical Context
The AT24C02-10TI-1.8 implements a two-wire I²C interface with Schmitt-triggered, noise-filtered SDA and SCL inputs. Its internal architecture organizes memory as 32 pages of 8 bytes each, requiring an 8-bit word address for random access and supporting both byte-write and page-write operations.
Write protection is enforced by the dedicated WP pin: tied to VCC, it locks the full 2 Kbit array; tied to GND, full read/write access is enabled. The device enters low-power standby mode after STOP condition receipt or power-up, drawing only 3 µA typical at 1.8 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2 Kbit (256 words × 8 bits), sufficient for calibration tables or device configuration in compact MCU systems |
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct interfacing with 1.8 V logic families without level shifting |
| I²C Clock Frequency | 100 kHz max at 1.8 V - ensures reliable communication in low-power, noise-sensitive environments |
| Write Cycle Time | 10 ms maximum - defines minimum interval between successive writes; impacts firmware write-sequence timing |
| Endurance | 1 million write cycles - supports frequent field updates in telemetry or logging applications |
| Data Retention | 100 years at +25°C - guarantees long-term storage integrity without refresh in unpowered devices |
| Operating Temperature | −40°C to +85°C - qualified for industrial control, automotive body electronics, and outdoor sensor nodes |
| Standby Current | 3 µA typical at 1.8 V - minimizes quiescent power draw in always-on battery-backed systems |
Pinout & Package
AT24C02-10TI-1.8 is supplied in an 8-lead TSSOP package (package code 8T), measuring 3.0 mm × 4.4 mm × 1.2 mm max height, with gull-wing leads and 0.65 mm pitch. This surface-mount package supports high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Device Address Input | Hard-wired input enabling up to eight AT24C02 devices on one I²C bus; must match external pull-up/down for unique addressing |
| A1 | Device Address Input | Second address bit; combined with A0 and A2, forms 3-bit slave address (1010xxx in binary) |
| A2 | Device Address Input | Third address bit; all three (A0–A2) are hard-wired and determine I²C slave address within 0x50–0x57 range |
| GND | Ground Reference | System ground return path; must be low-impedance and shared with host MCU to prevent I²C communication errors |
| VCC | Power Supply | Primary power input (1.8–5.5 V); requires local 100 nF ceramic decoupling placed ≤2 mm from pin |
| WP | Write Protect Control | Active-high hardware lock: logic high disables all write operations to entire memory array |
| SCL | I²C Clock Input | Open-drain input synchronized to host controller clock; requires external pull-up resistor (typically 4.7 kΩ) |
| SDA | I²C Data I/O | Bi-directional open-drain data line; shares pull-up with SCL; supports multi-master arbitration and clock stretching |
Key Features
| Feature | Design Value |
|---|---|
| 1.8 V operation | Enables direct integration into energy-harvesting and coin-cell–powered systems without voltage translation circuitry |
| Hardware write protection | WP pin provides fail-safe, non-software-dependent memory locking-critical for firmware boot parameters and security keys |
| 8-byte page write | Reduces I²C transaction overhead: up to eight bytes written per stop condition, improving throughput vs. byte-by-byte writes |
| Schmitt-trigger inputs | Ensures robust noise immunity on SDA/SCL lines in electrically noisy industrial environments (e.g., motor drives, PLCs) |
| Industrial temperature grade | Validated operation across −40°C to +85°C supports deployment in under-hood automotive modules and factory-floor controllers |
| 100-year data retention | Eliminates need for periodic refresh or backup power in maintenance-free deployments such as smart meters and medical implants |
Applications
| Smart Energy Metering | Industrial PLC Configuration |
|---|---|
Use Scenario: Storing tariff schedules, meter calibration constants, and tamper-event logs in utility-grade electricity meters. IC Role / Device Role / Timing Role: Nonvolatile parameter storage IC interfaced to an ARM Cortex-M3 host MCU via I²C at 100 kHz. Use Value: 1.8 V operation allows direct connection to the meter's low-voltage power rail; WP pin prevents accidental overwrites during firmware updates. |
Use Scenario: Holding user-defined I/O mapping, PID loop coefficients, and alarm thresholds in programmable logic controllers. IC Role / Device Role / Timing Role: Persistent configuration store accessed during PLC boot and runtime reconfiguration. Use Value: Industrial temperature rating ensures reliability inside metal enclosures exposed to ambient swings; 1M endurance supports daily parameter tuning. |
| Wearable Health Sensors | Automotive Body Control Modules |
Use Scenario: Saving patient-specific settings (e.g., sampling rate, alert thresholds) and last-measured biometric values in Bluetooth-enabled pulse oximeters. IC Role / Device Role / Timing Role: Low-power EEPROM co-located with an ultra-low-power MSP430 MCU on a compact flex PCB. Use Value: 3 µA standby current extends coin-cell battery life beyond 2 years; TSSOP-8 footprint minimizes board area. |
Use Scenario: Storing seat position memory, mirror angle presets, and lighting profiles in vehicle door modules. IC Role / Device Role / Timing Role: Configuration memory accessed by an 8-bit automotive MCU (e.g., PIC16F) during ignition-on initialization. Use Value: −40°C to +85°C qualification meets AEC-Q100 Grade 3 requirements; hardware WP prevents corruption during load-dump transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M24C02-RMN6TP | STMicroelectronics 2 Kbit EEPROM; identical 1.8–5.5 V range and TSSOP-8 package, but rated for 400 kHz at 1.8 V (vs. 100 kHz for AT24C02-10TI-1.8) | Supports higher-speed I²C in systems where bus bandwidth is constrained | Select when faster write throughput is required and host MCU supports 400 kHz timing margins |
| BR24G02NUX-1GE2 | Rohm 2 Kbit EEPROM; same voltage range and TSSOP-8, but offers 1.7 V minimum operation and built-in write-cycle endurance counter | Better suited for sub-1.8 V brown-out scenarios and predictive wear-leveling diagnostics | Choose for next-generation designs targeting extended low-voltage margin or lifetime monitoring |
Compared with M24C02-RMN6TP and BR24G02NUX-1GE2, the AT24C02-10TI-1.8 prioritizes proven industrial reliability and broad ecosystem support over marginal speed or voltage advantages-making it ideal for cost-sensitive, high-volume industrial and automotive Tier 2 applications where design-in stability is paramount.
Availability
AT24C02-10TI-1.8 is available at Aetrix Electronics and suitable for smart metering, industrial PLCs, wearable health sensors, and automotive body control modules requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for AT24C02-10TI-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 nonvolatile memory solutions, with a focus on embedded control and connectivity.
The AT24C02-10TI-1.8 belongs to Microchip's legacy AT24Cxx serial EEPROM family, designed specifically for low-voltage, low-power, and industrial-grade data logging and configuration storage in resource-constrained embedded systems.
FAQ
What is the minimum operating voltage for AT24C02-10TI-1.8?
The AT24C02-10TI-1.8 operates down to 1.8 V, as confirmed by its ordering suffix "-1.8" and the Absolute Maximum Ratings table specifying VCC = 1.8 V to 5.5 V. Below 1.8 V, the device does not guarantee functional operation or reliable write cycles, and the internal voltage regulator may fail to stabilize.
Does AT24C02-10TI-1.8 support 400 kHz I²C communication?
No - AT24C02-10TI-1.8 supports up to 100 kHz I²C clock frequency when operating at 1.8 V, as specified in the AC Characteristics table. While higher-voltage variants (e.g., AT24C02-10TI) support 400 kHz at 5 V, the -1.8 version is characterized and guaranteed only for 100 kHz at its minimum supply voltage.
How many devices can share the same I²C bus with AT24C02-10TI-1.8?
Up to eight AT24C02-10TI-1.8 devices can coexist on a single I²C bus. This is enabled by the three hardware address pins (A0, A1, A2), each configurable as high or low, yielding 2³ = 8 unique 7-bit slave addresses in the 0x50–0x57 range per the Device Addressing section.
What is the function of the WP pin on AT24C02-10TI-1.8?
The WP (Write Protect) pin on AT24C02-10TI-1.8 is an active-high hardware enable for memory write blocking. When pulled to VCC, it disables all write operations to the full 2 Kbit array; when grounded, full read/write access is permitted. This provides deterministic, non-software-dependent data integrity.
Is AT24C02-10TI-1.8 qualified for automotive applications?
AT24C02-10TI-1.8 is rated for industrial temperature (−40°C to +85°C) and is widely deployed in automotive body electronics (e.g., seat modules, lighting controls), but it is not AEC-Q100 qualified. For full automotive qualification, Microchip offers the AT24C02C-SSHM-T variant, which carries explicit AEC-Q100 Grade 2 certification.
AT24C02-10TI-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
AT24C02-10TI-1.8 FAQ
1.How can I place an order for AT24C02-10TI-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C02-10TI-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 AT24C02-10TI-1.8 reliable?
The price and inventory of AT24C02-10TI-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 AT24C02-10TI-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C02-10TI-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C02-10TI-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C02-10TI-1.8?
AT24C02-10TI-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C02-10TI-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 AT24C02-10TI-1.8?
For technical support, including AT24C02-10TI-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C02-10TI-1.8 requirements.
6.How does Aetrix verify that AT24C02-10TI-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C02-10TI-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 AT24C02-10TI-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C02-10TI-1.8?
All AT24C02-10TI-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C02-10TI-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 AT24C02-10TI-1.8 part is unused and in its original packaging.
Return procedure for AT24C02-10TI-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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