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Microchip Technology AT24C08N-10SI-2.5
- Part No.:
- AT24C08N-10SI-2.5
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C08N-10SI-2.5.pdf
- Description:
- IC EEPROM 8KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,109
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Product details
Overview
AT24C08N-10SI-2.5 from Microchip Technology (formerly Atmel) is an 8K-bit (1024 × 8) serial EEPROM with I²C-compatible 2-wire interface, operating from 2.5V to 5.5V, featuring 10 ms max self-timed write cycle, 1 million write endurance, and 100-year data retention. It serves as nonvolatile configuration storage in microcontroller-based systems requiring low-voltage operation and industrial temperature support (–40°C to +85°C).
For engineers reviewing the AT24C08N-10SI-2.5 datasheet, AT24C08N-10SI-2.5 pinout, AT24C08N-10SI-2.5 application, or AT24C08N-10SI-2.5 equivalent, key selection factors include its 2.5V–5.5V supply range, 16-byte page write capability, write-protect pin hardware control, SOIC-8 package, and compatibility with 100 kHz I²C bus timing at 2.5V.
Technical Context
The AT24C08N-10SI-2.5 implements a standard I²C protocol with open-drain SDA/SCL pins, Schmitt-trigger inputs for noise immunity, and bi-directional data transfer. Its internal memory is organized into 64 pages of 16 bytes each, supporting both byte and page write modes with automatic address incrementing within pages.
Device addressing uses only the A2 pin (A0 and A1 are NC), enabling up to two AT24C08 devices on a shared bus. The WP pin provides hardware-level write protection: tied to VCC, it locks the full 8K array; tied to GND, full read/write access is enabled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8192 bits (1024 × 8), sufficient for firmware calibration tables or device configuration parameters |
| Supply Voltage Range | 2.5V to 5.5V - supports direct interfacing with 2.5V/3.3V/5V logic without level shifters |
| I²C Clock Frequency | 100 kHz at 2.5V - ensures reliable communication in noise-sensitive industrial environments |
| Write Cycle Time | Max 10 ms - defines minimum interval between successive write operations |
| Endurance | 1 million write cycles - enables long-term field deployment in logging or parameter-tuning applications |
| Data Retention | 100 years at 25°C - guarantees persistent storage across product lifecycle without refresh |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded systems and automotive body electronics |
Pinout & Package
AT24C08N-10SI-2.5 is housed in an 8-lead JEDEC SOIC (8S1) package, 3.9mm × 4.9mm, 1.75mm height, gull-wing leads, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | No Connect | Not bonded internally; must be left unconnected or tied to GND/VCC (no effect) |
| A1 | No Connect | Not bonded internally; must be left unconnected or tied to GND/VCC (no effect) |
| A2 | Device Address Input | Hardwired address bit; selects one of two possible addresses (0 or 1) on shared I²C bus |
| GND | Ground Reference | Return path for all internal circuitry and I/O signals |
| VCC | Power Supply | Primary DC supply input (2.5V–5.5V); decoupling capacitor required near pin |
| WP | Write Protect Control | Hardware lock: VCC = full-array protection; GND = normal read/write access |
| SCL | Serial Clock Input | Positive-edge clock for data synchronization; open-drain, requires external pull-up |
| SDA | Serial Data I/O | Bi-directional open-drain data line; shares bus with other I²C devices via wire-OR |
Key Features
| Feature | Design Value |
|---|---|
| 16-byte Page Write | Reduces I²C transaction overhead by up to 16× vs. byte writes, accelerating bulk configuration updates |
| Schmitt Trigger Inputs | Rejects high-frequency noise on SCL/SDA lines, improving robustness in electrically noisy industrial enclosures |
| Hardware Write Protection | Prevents accidental overwrites during power transients or firmware glitches via simple WP pin tie-off |
| Low Standby Current | 4 µA max at 2.5V - minimizes battery drain in always-on IoT sensor nodes |
| Industrial Temperature Range | –40°C to +85°C operation validated - eliminates derating concerns in factory automation controllers |
Applications
| Smart Meter Calibration Storage | PLC Configuration Backup |
|---|---|
Use Scenario: Storing meter-specific calibration coefficients and tariff tables that persist across power cycles and firmware updates. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding 8K-bit of precision calibration data accessed via I²C during boot or recalibration. Use Value: Enables field-upgradable metrology without requiring external flash or battery-backed RAM. | Use Scenario: Retaining ladder logic configuration, I/O mapping, and alarm thresholds in programmable logic controllers deployed in manufacturing lines. IC Role / Device Role / Timing Role: Dedicated EEPROM for storing user-defined operational parameters, isolated from volatile program memory. Use Value: Guarantees deterministic startup behavior after brownouts or maintenance resets. |
| Medical Device Settings | Automotive Body Control Module |
Use Scenario: Saving patient-specific therapy parameters (e.g., infusion rates, alarm limits) in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, low-power nonvolatile memory for critical user settings with hardware write-lock (WP pin). Use Value: Meets IEC 62304 safety requirements for data integrity without software-level protection overhead. | Use Scenario: Storing seat position presets, mirror angles, and lighting profiles in automotive interior modules. IC Role / Device Role / Timing Role: I²C-connected configuration memory interfaced directly to 3.3V microcontroller in BCM ASIC subsystem. Use Value: Supports 2.5V–5.5V operation across vehicle battery voltage fluctuations (9V–16V with regulator). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C08D-SSHM-T | Same 8K-bit capacity, SOIC-8, 2.5V–5.5V, but rated for –40°C to +125°C and offered by Microchip in tape-and-reel only | Targeted at extended-temperature automotive under-hood use, not industrial ambient | Select if operating beyond +85°C or requiring AEC-Q200 alignment |
| M24C08-RMN6TP | 8K-bit, SOIC-8, 1.7V–5.5V, 400 kHz max I²C speed, 1M endurance, but no dedicated WP pin - write protection implemented via software address locking | Lacks hardware write protect; requires firmware coordination for secure writes | Choose when higher-speed 400 kHz operation at 2.5V is needed and WP pin is not mandatory |
Compared with AT24C08N-10SI-2.5, AT24C08D-SSHM-T extends temperature range for harsh environments, while M24C08-RMN6TP trades hardware WP for wider voltage range and faster I²C - neither is pin-compatible, but both serve overlapping configuration-storage roles with distinct trade-offs in protection, speed, and thermal rating.
Availability
AT24C08N-10SI-2.5 is available at Aetrix Electronics and suitable for industrial control systems, smart metering infrastructure, and medical instrumentation requiring stable component supply, long-lifecycle support, and guaranteed industrial-temperature qualification.
Supply support for AT24C08N-10SI-2.5 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, FPGA, and memory solutions, with deep expertise in embedded control and nonvolatile storage.
The AT24C08N-10SI-2.5 belongs to Microchip's legacy AT24C serial EEPROM family, designed specifically for reliable, low-power, I²C-based configuration and parameter storage in space-constrained industrial and commercial systems.
FAQ
What is the maximum I²C clock frequency supported by AT24C08N-10SI-2.5 at 2.5V?
The AT24C08N-10SI-2.5 supports up to 100 kHz I²C clock frequency when operated at 2.5V. This is specified in the AC Characteristics table under "2.7-, 2.5-, 1.8-volt" conditions. At 5.0V, it supports 400 kHz, but the -2.5 suffix denotes optimization for the lower-voltage domain where 100 kHz is the guaranteed maximum rate.
Is AT24C08N-10SI-2.5 pin-compatible with AT24C08-10SI-2.5?
Yes, AT24C08N-10SI-2.5 is pin-compatible with AT24C08-10SI-2.5. Both use identical 8-lead SOIC packaging and share identical pin functions (A2, WP, SCL, SDA, VCC, GND, A0/A1 as NC). The "N" suffix indicates a minor revision or packaging variant (e.g., lead-free, tape-and-reel), not functional or pinout differences.
How does the write-protect (WP) pin function on AT24C08N-10SI-2.5?
On AT24C08N-10SI-2.5, the WP pin enables hardware-level write protection: when tied to VCC, the entire 8K-bit memory array is locked against writes; when tied to GND, full read/write access is permitted. This behavior is independent of I²C commands and provides fail-safe protection during power-up or firmware faults.
What is the page size and maximum burst length for write operations on AT24C08N-10SI-2.5?
The AT24C08N-10SI-2.5 has a 16-byte page size. A single page write operation can transmit up to 16 sequential bytes starting from any address aligned to a page boundary. Attempting to write beyond the page boundary causes wraparound to the start of the same page, overwriting prior data unless explicitly managed by firmware.
Does AT24C08N-10SI-2.5 require external pull-up resistors on SDA and SCL lines?
Yes, AT24C08N-10SI-2.5 requires external pull-up resistors on both SDA and SCL lines because its I²C interface uses open-drain outputs. Typical values range from 2.2 kΩ to 10 kΩ depending on bus capacitance and desired rise time; Microchip recommends 4.7 kΩ for standard-mode (100 kHz) operation at 2.5V.
AT24C08N-10SI-2.5 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:
- 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:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C08N-10SI-2.5 FAQ
1.How can I place an order for AT24C08N-10SI-2.5 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C08N-10SI-2.5 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 AT24C08N-10SI-2.5 reliable?
The price and inventory of AT24C08N-10SI-2.5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT24C08N-10SI-2.5 is usually 5 days.
3.What payment methods are accepted for AT24C08N-10SI-2.5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C08N-10SI-2.5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C08N-10SI-2.5?
AT24C08N-10SI-2.5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C08N-10SI-2.5 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 AT24C08N-10SI-2.5?
For technical support, including AT24C08N-10SI-2.5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C08N-10SI-2.5 requirements.
6.How does Aetrix verify that AT24C08N-10SI-2.5 is sourced from the original manufacturer or authorized distributors?
All AT24C08N-10SI-2.5 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 AT24C08N-10SI-2.5 meets industry standards.
7.What is the process for return or replacement of AT24C08N-10SI-2.5?
All AT24C08N-10SI-2.5 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C08N-10SI-2.5, 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 AT24C08N-10SI-2.5 part is unused and in its original packaging.
Return procedure for AT24C08N-10SI-2.5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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