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Microchip Technology AT24C02AN-10SC-2.7
- Part No.:
- AT24C02AN-10SC-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C02AN-10SC-2.7.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,010
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Product details
Overview
AT24C02AN-10SC-2.7 from Microchip Technology (formerly Atmel) is a 2K-bit (256 × 8) I²C-compatible serial EEPROM with hardware write protection, low-voltage operation (2.7V–5.5V), and 100 kHz maximum clock frequency. It features Schmitt-trigger inputs for noise immunity, 8-byte page write capability, and 1 million endurance cycles. It is used in embedded systems for storing calibration data, configuration settings, and device identifiers.
For engineers reviewing the AT24C02AN-10SC-2.7 datasheet, AT24C02AN-10SC-2.7 pinout, AT24C02AN-10SC-2.7 application, or AT24C02AN-10SC-2.7 equivalent, key selection considerations include its 2.7V–5.5V supply range, 8-pin SOIC package, WP pin-based hardware write protection, 10 ms max write cycle time, and compatibility with I²C-bus timing at 100 kHz under low-voltage conditions.
Technical Context
The AT24C02AN-10SC-2.7 implements a standard two-wire I²C interface with open-drain SDA and active-high SCL, supporting bidirectional data transfer and ACK/NACK handshaking. Its internal address counter enables current-address and sequential reads without reissuing the word address.
It uses hardwired A0–A2 pins for device addressing (up to eight devices on one bus), a dedicated WP pin for hardware-level write lock of the upper 1K-bit array, and internally timed self-write cycles that disable inputs until completion - requiring acknowledge polling for status verification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2048 bits (256 × 8), organized as 256 words of 8 bits each - supports byte- and page-level writes without external address latches. |
| Supply Voltage Range | 2.7V to 5.5V - enables direct integration into 3.3V and mixed-voltage systems without level-shifting. |
| I²C Clock Frequency | 100 kHz maximum (at 2.7V) - ensures reliable timing margin in noise-prone industrial environments. |
| Write Cycle Time | 10 ms maximum - defines minimum interval between write commands; requires polling or timeout handling in firmware. |
| Endurance & Retention | 1 million write cycles / 100 years data retention - suitable for field-updatable parameters with infrequent but critical writes. |
| ESD Protection | >3000V HBM - reduces need for external transient suppression in board-level ESD design. |
| Operating Temperature | 0°C to +70°C (Commercial grade) - validated for use in consumer and industrial control panels, not extended-temperature applications. |
Pinout & Package
AT24C02AN-10SC-2.7 is supplied in an 8-pin JEDEC SOIC package (package code 8S1), 0.150" wide, with standard gull-wing leads and 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Device Address Input | Hardwired LSB of 3-bit device address; sets unique I²C slave address (0x50–0x57) when multiple EEPROMs share a bus. |
| A1 | Device Address Input | Mid-bit of device address; enables up to eight AT24C02AN-10SC-2.7 devices on a single I²C bus. |
| A2 | Device Address Input | MSB of device address; tied high/low to configure slave address independent of software configuration. |
| GND | Ground Reference | Return path for VCC and all logic signals; must be low-impedance to ensure stable I²C signal integrity and noise immunity. |
| VCC | Power Supply | Primary power input (2.7V–5.5V); decoupling capacitor (0.1 µF) required within 1 cm for stable read/write operation. |
| WP | Write Protect Control | Hardware-enforced lock: tied to GND for full read/write access; tied to VCC to protect upper 1K-bit memory block from accidental writes. |
| SCL | Serial Clock Input | Positive-edge sampled clock for data synchronization; requires external pull-up resistor (typically 4.7 kΩ) to VCC. |
| SDA | Serial Data I/O | Bidirectional open-drain data line; shared across I²C bus; requires same pull-up as SCL and supports wire-OR with other devices. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Write Protection | WP pin physically disables writes to upper 1K-bit memory segment - eliminates risk of firmware corruption during power-up/down or reset sequences. |
| Schmitt-Trigger Inputs | SDA and SCL inputs include hysteresis and filtering - rejects sub-100 ns noise spikes common in motor-driven or switching-power-supply environments. |
| Page Write Mode | 8-byte burst write capability - reduces I²C transaction overhead by 87% vs. individual byte writes for contiguous configuration blocks. |
| Low Standby Current | Max 4.0 µA at 2.7V - extends battery life in portable instrumentation and IoT edge nodes where EEPROM remains powered continuously. |
| I²C Bus Compatibility | Fully compliant with standard-mode I²C (100 kHz) timing - interoperates with microcontrollers, PMICs, and sensors without protocol translation. |
Applications
| Industrial Sensor Calibration | Consumer Device Configuration |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessed during power-on initialization via I²C; no real-time timing constraints. Use Value: Enables field-replaceable sensor modules with persistent calibration data, eliminating per-unit firmware flashing and reducing manufacturing test time. |
Use Scenario: Saving user preferences (volume, display brightness, language) in smart speakers and streaming media players. IC Role / Device Role / Timing Role: Low-power configuration memory updated infrequently; accessed only during boot or UI interaction events. Use Value: Maintains user experience continuity across power cycles with minimal impact on system standby current due to 4 µA max ISB at 2.7V. |
| Medical Diagnostic Equipment | Automotive Body Control Module |
Use Scenario: Recording usage logs and service intervals in portable ultrasound or blood glucose meters. IC Role / Device Role / Timing Role: Reliable data logger with guaranteed 100-year retention; writes triggered by button press or session end. Use Value: Meets regulatory requirements for audit trail persistence without requiring backup batteries or FRAM-level cost premium. |
Use Scenario: Storing seat/mirror position presets and lighting profiles in entry-level automotive BCMs. IC Role / Device Role / Timing Role: I²C-connected configuration store interfaced to 8-bit MCU; accessed during ignition-on sequence. Use Value: Supports personalized settings across vehicle models using standardized 2.7V–5.5V supply and SOIC footprint - simplifies BOM consolidation. |
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 2K I²C EEPROM; identical 2.7V–5.5V range and 8-pin SOIC package; 400 kHz max clock (vs. 100 kHz for AT24C02AN-10SC-2.7). | Supports faster firmware updates in production programming; requires timing validation if host MCU uses tight I²C margins. | Select when higher-speed writes are needed and system-level noise immunity is confirmed. |
| CAT24C02WI-GT3 | ON Semiconductor 2K EEPROM; same voltage range and pinout; rated for -40°C to +85°C industrial temp range (vs. 0°C to +70°C for AT24C02AN-10SC-2.7). | Validated for deployment in uncontrolled ambient environments like outdoor kiosks or HVAC controllers. | Select when extended temperature operation is required without redesigning PCB layout or firmware. |
Compared with M24C02-RMN6TP and CAT24C02WI-GT3, the AT24C02AN-10SC-2.7 offers optimized cost and proven reliability in commercial-temperature embedded systems, while trading off speed and temperature range for lower system-level qualification effort.
Availability
AT24C02AN-10SC-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, consumer device configuration, medical diagnostic logging, and automotive body control module applications requiring stable component supply and long-term obsolescence management.
Supply support for AT24C02AN-10SC-2.7 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 product support, documentation, and manufacturing continuity for the AT24CxxA EEPROM family.
The AT24C02A series was designed specifically for cost-sensitive, low-power embedded systems needing robust nonvolatile storage with minimal external components and I²C bus simplicity.
FAQ
What is the maximum I²C clock frequency supported by the AT24C02AN-10SC-2.7?
The AT24C02AN-10SC-2.7 supports a maximum I²C clock frequency of 100 kHz when operating within its 2.7V–5.5V supply range. This is specified in the AC Characteristics table under fSCL for 2.7-/2.5-/1.8-volt operation. It does not support 400 kHz - that rating applies only to the 5.0V version (e.g., AT24C02A-10SC). Using higher frequencies may result in unreliable communication or data corruption.
How does the Write Protect (WP) pin function on the AT24C02AN-10SC-2.7?
On the AT24C02AN-10SC-2.7, the WP pin provides hardware-level write protection: when tied to VCC, it locks the upper 1K-bit memory block (addresses 0x080–0x0FF); when tied to GND, full read/write access is enabled. Unlike software lock bits, this protection persists across power cycles and cannot be overridden by I²C commands - making it ideal for safeguarding critical calibration or security data.
What package type is used for the AT24C02AN-10SC-2.7?
The AT24C02AN-10SC-2.7 uses an 8-pin JEDEC SOIC package (package code 8S1), 0.150" wide, with gull-wing leads and 1.27 mm pitch. This matches industry-standard footprints used for AT24C02A variants and is compatible with automated SMT assembly processes. Pin 1 is marked by a notch or dot; orientation follows JEDEC MS-012 standard.
Can the AT24C02AN-10SC-2.7 be used in automotive applications?
The AT24C02AN-10SC-2.7 is rated for commercial temperature range (0°C to +70°C) and is not qualified to AEC-Q100 standards. While it may function in benign automotive cabin environments, Microchip does not guarantee performance or reliability under automotive stress conditions (e.g., thermal cycling, vibration, extended temperature extremes). For automotive use, select the industrial-grade AT24C02AN-10SI-2.7 (–40°C to +85°C) or AEC-Q100 qualified alternatives.
What is the typical standby current consumption of the AT24C02AN-10SC-2.7?
The AT24C02AN-10SC-2.7 draws a maximum standby current (ISB3) of 4.0 µA at VCC = 2.7V and TA = +25°C. Typical values are lower (1.6 µA), but design should budget for the worst-case spec. This ultra-low quiescent current makes it suitable for battery-powered devices where the EEPROM remains powered continuously between infrequent write operations.
AT24C02AN-10SC-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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:
- 2.7V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C02AN-10SC-2.7 FAQ
1.How can I place an order for AT24C02AN-10SC-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C02AN-10SC-2.7 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 AT24C02AN-10SC-2.7 reliable?
The price and inventory of AT24C02AN-10SC-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT24C02AN-10SC-2.7 is usually 5 days.
3.What payment methods are accepted for AT24C02AN-10SC-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C02AN-10SC-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C02AN-10SC-2.7?
AT24C02AN-10SC-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C02AN-10SC-2.7 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 AT24C02AN-10SC-2.7?
For technical support, including AT24C02AN-10SC-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C02AN-10SC-2.7 requirements.
6.How does Aetrix verify that AT24C02AN-10SC-2.7 is sourced from the original manufacturer or authorized distributors?
All AT24C02AN-10SC-2.7 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 AT24C02AN-10SC-2.7 meets industry standards.
7.What is the process for return or replacement of AT24C02AN-10SC-2.7?
All AT24C02AN-10SC-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C02AN-10SC-2.7, 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 AT24C02AN-10SC-2.7 part is unused and in its original packaging.
Return procedure for AT24C02AN-10SC-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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