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Microchip Technology AT24C08-10TC-1.8
- Part No.:
- AT24C08-10TC-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT24C08-10TC-1.8.pdf
- Description:
- IC EEPROM 8KBIT I2C 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,893
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Product details
Overview
AT24C08-10TC-1.8 from Microchip Technology (formerly Atmel) is an 8-Kbit (1024 × 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 speed at 1.8 V, features hardware write protection via WP pin, and delivers 1 million write cycles with 100-year data retention. It is used in battery-powered IoT sensors for nonvolatile configuration storage.
For engineers reviewing the AT24C08-10TC-1.8 datasheet, AT24C08-10TC-1.8 pinout, AT24C08-10TC-1.8 application, or AT24C08-10TC-1.8 equivalent, key selection criteria include 1.8 V minimum supply, 100 kHz I²C timing compliance at low voltage, 16-byte page write capability, WP pin functionality, and TSSOP-8 package compatibility with space-constrained PCB layouts.
Technical Context
The AT24C08-10TC-1.8 implements a two-wire I²C interface with open-drain SDA and Schmitt-triggered SCL inputs for noise immunity. Its memory is organized as 64 pages of 16 bytes each, requiring a 10-bit word address for random access. Device addressing uses only the A2 pin; A0 and A1 are no-connects, enabling up to two AT24C08 devices on a single bus.
Write operations support byte and 16-byte page modes with self-timed internal write cycles (≤10 ms). Standby current is specified at 3 µA max under 1.8 V, and input leakage remains ≤0.1 µA across temperature - critical for energy harvesting and coin-cell applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 × 8 bits), organized as 64 pages × 16 bytes - enables efficient firmware parameter storage with minimal address overhead. |
| Supply Voltage Range | 1.8 V to 5.5 V - supports direct interfacing with 1.8 V logic families and mixed-voltage systems without level shifters. |
| I²C Clock Frequency | 100 kHz maximum at 1.8 V - ensures reliable communication in low-power microcontroller subsystems with reduced slew rate. |
| Page Write Size | 16 bytes per page - reduces write transaction count by 2× vs. 8-byte pages, lowering total programming time and I²C bus occupancy. |
| Write Endurance | 1 million write cycles - guarantees long-term reliability in field-updatable calibration data logging applications. |
| Data Retention | 100 years at +25°C - meets industrial and automotive requirements for unattended operation over product lifetime. |
| Standby Current | 3 µA max at VCC = 1.8 V - minimizes quiescent power draw in always-on sensor nodes and wearable electronics. |
Pinout & Package
AT24C08-10TC-1.8 is housed in an 8-lead TSSOP package (JEDEC MO-153, 3.0 mm × 4.4 mm footprint, 0.65 mm pitch), optimized for high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | No-connect (NC) | Internally unused; must be left floating or tied to GND/VCC - no effect on device addressing. |
| A1 | No-connect (NC) | Internally unused; no impact on operation - simplifies board routing and eliminates external pull-up/down requirements. |
| A2 | Device Address Input | Hardwired address bit enabling one of two possible AT24C08 devices on shared I²C bus (0 = device 0, 1 = device 1). |
| GND | Ground Reference | Primary return path for all internal circuitry and I/O; requires low-impedance connection to system ground plane. |
| VCC | Power Supply | Single-supply input supporting 1.8–5.5 V; decoupling capacitor (0.1 µF) required within 1 cm of pin for noise suppression. |
| WP | Write Protect Control | Active-high hardware lock: tied to VCC disables all writes to entire memory array; tied to GND enables full read/write access. |
| SCL | Serial Clock Input | Input-only clock line with Schmitt trigger and 100 ns noise filter - tolerates slow-rising edges and EMI in noisy environments. |
| SDA | Serial Data I/O | Open-drain bidirectional line requiring external pull-up resistor (typically 2.2–10 kΩ); supports wired-AND bus sharing with other I²C devices. |
Key Features
| Feature | Design Value |
|---|---|
| 1.8 V Operation | Guaranteed functionality down to 1.8 V supply enables direct integration with modern ultra-low-power MCUs (e.g., ARM Cortex-M0+), eliminating level-shifting circuitry. |
| 16-byte Page Writes | Reduces average I²C transactions per kilobyte written by 50% versus 8-byte pages - cuts firmware update time and CPU overhead in embedded hosts. |
| Schmitt-trigger Inputs | Suppresses digital noise on SCL/SDA lines without external RC filters - improves robustness in electrically noisy industrial control panels and motor drives. |
| Hardware Write Protection | WP pin provides fail-safe, non-software-dependent memory locking - prevents accidental corruption during brown-out, reset, or firmware faults. |
| 100-Year Data Retention | Validated at +25°C and extrapolated per JEDEC JESD22-A117 - ensures stored calibration coefficients remain intact over full product lifecycle without refresh. |
Applications
| Smart Metering | Industrial PLC Modules |
|---|---|
|
Use Scenario: Storing tariff tables, meter ID, and tamper logs in electricity/water meters powered by supercapacitors or energy harvesters. IC Role / Device Role / Timing Role: Nonvolatile configuration and event-log storage with guaranteed 1.8 V operation during capacitor discharge phases. Use Value: Enables >10-year field deployment without battery replacement while maintaining secure, write-protected billing data integrity. |
Use Scenario: Holding I/O mapping, calibration offsets, and firmware revision history in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Persistent parameter storage accessible via host MCU's I²C peripheral during cold start and runtime reconfiguration. Use Value: Eliminates need for external backup batteries or FRAM; retains settings through 10⁶ power cycles and -40°C to +85°C ambient. |
| Wearable Health Sensors | Automotive Body Control Units |
|
Use Scenario: Saving user profiles, sensor calibration data, and session history in Bluetooth-enabled fitness trackers and ECG patches. IC Role / Device Role / Timing Role: Low-quiescent EEPROM interfaced directly to 1.8 V BLE SoC, minimizing BOM count and PCB area. Use Value: Achieves sub-5 µA system standby with retained personalization data - extends coin-cell life beyond 12 months. |
Use Scenario: Storing seat position presets, mirror angles, and lighting configurations in vehicle door modules and center consoles. IC Role / Device Role / Timing Role: Automotive-grade (AEC-Q100 qualified variant available) nonvolatile memory accessed during ignition-on initialization. Use Value: Supports 1M+ write cycles for frequent user adjustments while meeting ISO 16750-2 electrical stress and thermal cycling requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M24C08-RMN6TP | STMicroelectronics 8-Kbit I²C EEPROM; supports 1.7–5.5 V, 400 kHz at 1.7 V, 16-byte page, same TSSOP-8 package. | Higher speed at lowest voltage (400 kHz vs. 100 kHz) but lower endurance (400k cycles) and 40-year retention. | Select when faster low-voltage writes are prioritized over long-term data integrity in consumer-grade designs. |
| BR24G08NUX-10 | Rohm 8-Kbit I²C EEPROM; 1.6–5.5 V range, 1 MHz max clock, 16-byte page, TSSOP-8, built-in write protect register. | Software-configurable WP (not pin-based), higher speed, but requires additional I²C command overhead for protection setup. | Choose when flexible, dynamic write protection is needed alongside 1.6 V operation - e.g., in multi-firmware partitioning schemes. |
Compared with M24C08-RMN6TP and BR24G08NUX-10, the AT24C08-10TC-1.8 offers superior long-term reliability (1M cycles, 100-year retention) and deterministic hardware-based write protection - making it preferred for industrial and safety-critical parameter storage where firmware simplicity and data longevity are paramount.
Availability
AT24C08-10TC-1.8 is available at Aetrix Electronics and suitable for smart metering, industrial PLC modules, wearable health sensors, and automotive body control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AT24C08-10TC-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 acquired Atmel in 2016 and maintains full technical and manufacturing continuity for the AT24Cxx EEPROM family. The company specializes in microcontrollers, analog, and memory solutions for embedded systems.
The AT24Cxx series was designed specifically for cost-sensitive, low-power I²C-based data storage in industrial, automotive, and consumer electronics - emphasizing voltage flexibility, robustness, and ease of integration.
FAQ
What is the minimum operating voltage for AT24C08-10TC-1.8?
The AT24C08-10TC-1.8 is rated for operation down to 1.8 V, with full I²C functionality (100 kHz clock, valid read/write timing, and WP pin behavior) guaranteed across the entire 1.8 V to 5.5 V range. This allows direct interfacing with 1.8 V logic without level translation, and its 3 µA max standby current at 1.8 V supports ultra-low-power designs. The "-1.8" suffix explicitly denotes this low-voltage qualification.
Does AT24C08-10TC-1.8 support 400 kHz I²C communication?
No - AT24C08-10TC-1.8 supports up to 100 kHz I²C clock frequency when operating at 1.8 V, as specified in its AC characteristics table. While higher-speed variants (e.g., AT24C08-10TC) support 400 kHz at 5 V, the -1.8 version is optimized for low-voltage stability, not speed. Attempting 400 kHz at 1.8 V violates timing parameters (tLOW/tHIGH) and risks communication failure.
How many AT24C08-10TC-1.8 devices can share one I²C bus?
Up to two AT24C08-10TC-1.8 devices can operate on a single I²C bus. This is because only the A2 pin is used for hardwired device addressing (A0 and A1 are NC), providing one binary bit (0 or 1) to distinguish between devices. Each device must have A2 tied to a unique logic level (GND or VCC) to avoid address collision during read/write operations.
What is the function of the WP pin on AT24C08-10TC-1.8?
The WP (Write Protect) pin on AT24C08-10TC-1.8 provides hardware-level write inhibition: when pulled high to VCC, it disables all write operations to the entire memory array, preserving stored data even during unintended MCU writes or power glitches. When grounded, full read/write access is enabled. This pin operates independently of software commands and requires no initialization.
Is AT24C08-10TC-1.8 compatible with standard I²C protocol?
Yes - AT24C08-10TC-1.8 fully complies with the standard I²C protocol, including START/STOP conditions, 7-bit device addressing (with R/W bit), ACK/NACK handshaking, and byte/page write sequences. It uses open-drain SDA and Schmitt-triggered SCL inputs, supports multi-master arbitration, and adheres to I²C timing specifications at 100 kHz under 1.8 V operation.
AT24C08-10TC-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:
- 8Kbit
- Memory Organization:
- 1K 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
AT24C08-10TC-1.8 FAQ
1.How can I place an order for AT24C08-10TC-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C08-10TC-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 AT24C08-10TC-1.8 reliable?
The price and inventory of AT24C08-10TC-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 AT24C08-10TC-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C08-10TC-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C08-10TC-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C08-10TC-1.8?
AT24C08-10TC-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C08-10TC-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 AT24C08-10TC-1.8?
For technical support, including AT24C08-10TC-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C08-10TC-1.8 requirements.
6.How does Aetrix verify that AT24C08-10TC-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C08-10TC-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 AT24C08-10TC-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C08-10TC-1.8?
All AT24C08-10TC-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C08-10TC-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 AT24C08-10TC-1.8 part is unused and in its original packaging.
Return procedure for AT24C08-10TC-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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