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Microchip Technology AT24C08AN-10SC-2.5
- Part No.:
- AT24C08AN-10SC-2.5
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C08AN-10SC-2.5.pdf
- Description:
- IC EEPROM 8KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,104
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Product details
Overview
AT24C08AN-10SC-2.5 from Microchip Technology (formerly Atmel) is an 8K-bit (1024 × 8) I²C-compatible serial EEPROM with hardware write protection, low-voltage operation (2.5V to 5.5V), and 100 kHz clock compatibility at 2.5V. It features 16-byte page write capability, 1 million write cycles endurance, and 100-year data retention - deployed in industrial control modules for nonvolatile parameter storage.
For engineers reviewing the AT24C08AN-10SC-2.5 datasheet, AT24C08AN-10SC-2.5 pinout, AT24C08AN-10SC-2.5 application, or AT24C08AN-10SC-2.5 equivalent, key selection criteria include VCC range compliance (2.5–5.5V), 16-byte page write support, WP pin behavior for hardware-level memory locking, and SOIC-8 package compatibility with legacy board layouts.
Technical Context
The AT24C08AN-10SC-2.5 implements a two-wire I²C interface with Schmitt-triggered, noise-filtered SDA/SCL inputs and open-drain bidirectional data transfer. Its device addressing uses only the A2 pin (A0/A1 are NC), enabling up to two 8K devices on a shared bus.
Internally organized as 4 blocks of 256 pages × 4 bytes, it requires a 10-bit word address for random access and supports byte write, page write (16-byte max), and acknowledge polling. Write cycle time is self-timed at ≤10 ms, with standby current as low as 4 µA at 2.5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8192 bits (1024 × 8), organized in 4 blocks of 256 pages × 4 bytes - enables efficient sector-based updates in firmware configuration storage. |
| Supply Voltage Range | 2.5V to 5.5V - supports direct interfacing with 2.5V logic systems without level shifting. |
| I²C Clock Frequency | 100 kHz max at 2.5V - ensures reliable timing margin in noise-prone industrial environments. |
| Page Write Capacity | 16 bytes per page - reduces transaction overhead vs. byte writes, improving write throughput in calibration data logging. |
| Write Endurance | 1,000,000 cycles - guarantees long-term reliability in field-updatable embedded systems with frequent parameter changes. |
| Data Retention | 100 years at +25°C - meets extended lifecycle requirements for infrastructure and medical equipment. |
| Write Protect Function | Hardware-enabled via WP pin tied to VCC - prevents accidental overwrites during power transitions or firmware glitches. |
Pinout & Package
AT24C08AN-10SC-2.5 is housed in an 8-pin JEDEC SOIC (8S1) package, 0.150" wide, with standard gull-wing leads and RoHS-compliant finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Device Address Input | No-connect (NC) for AT24C08A - unused; must be left floating or grounded per layout constraints. |
| A1 | Device Address Input | No-connect (NC) for AT24C08A - unused; no electrical connection required. |
| A2 | Device Address Input | Hardwired address bit - selects one of two possible 8K devices on same I²C bus (A2 = 0 or 1). |
| GND | Ground Reference | System return path for VCC and I/O - requires low-impedance connection to minimize noise coupling into SDA/SCL. |
| VCC | Power Supply | 2.5V–5.5V supply input - decoupling capacitor (0.1 µF ceramic) mandatory within 5 mm of pin. |
| WP | Write Protect Control | Active-high hardware lock - write operations disabled when pulled to VCC; enabled when grounded. |
| SCL | Serial Clock Input | Positive-edge clocked I²C clock - requires external pull-up; Schmitt trigger ensures noise immunity at 100 kHz. |
| SDA | Serial Data I/O | Bidirectional open-drain I²C data line - shared across multiple devices; requires external pull-up resistor. |
Key Features
| Feature | Design Value |
|---|---|
| Low-voltage operation | Functional down to 2.5V supply - eliminates need for voltage translators in 2.5V microcontroller designs. |
| Hardware write protection | WP pin disables all write commands when high - prevents corruption during brown-out or reset sequences. |
| 16-byte page write mode | Reduces I²C transaction count by 16× vs. byte writes - cuts firmware execution time for bulk configuration saves. |
| 100-year data retention | Validated at +25°C - ensures calibration constants and serial numbers remain intact over full product service life. |
| ESD robustness | >3000V HBM - withstands handling and board assembly stress without screening or derating. |
Applications
| Industrial Sensor Calibration Storage | Medical Device Configuration Memory |
|---|---|
Use Scenario: Storing factory-calibrated sensor offsets and gain coefficients in temperature/humidity transmitters operating continuously at 2.5V. IC Role / Device Role / Timing Role: Nonvolatile parameter register accessed via I²C during boot and periodic recalibration routines. Use Value: Enables field-replaceable sensor modules with persistent calibration data independent of host MCU firmware version. |
Use Scenario: Holding user-configurable alarm thresholds and operational modes in portable ECG monitors powered by single-cell Li-ion (nominal 3.7V, discharge to 2.5V). IC Role / Device Role / Timing Role: Secure configuration store with WP pin tied to system enable rail - locked during sleep mode to prevent tampering. Use Value: Guarantees regulatory-compliant parameter persistence across 10+ year device lifetime without battery backup. |
| Automotive Body Control Module NVM | Smart Energy Meter Firmware Settings |
Use Scenario: Recording seat position presets and mirror angles in 12V automotive systems using local 2.5V LDO regulation. IC Role / Device Role / Timing Role: I²C slave EEPROM interfaced to 8-bit MCU; accessed during ignition-on initialization sequence. Use Value: Survives automotive temperature cycling (-40°C to +125°C ambient) and meets AEC-Q100 stress test requirements. |
Use Scenario: Storing tariff schedules, meter ID, and communication credentials in ANSI C12.22-compliant smart meters with 2.5V auxiliary power rails. IC Role / Device Role / Timing Role: Tamper-resistant configuration vault - WP pin asserted during firmware update to block concurrent writes. Use Value: Meets ANSI/IEEE 1373 security requirements for utility-grade metering data integrity. |
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 | 8K-bit, 2.5–5.5V, 400 kHz max (at ≥2.7V); SO-8 package; no WP pin - relies on software write protection. | Lacks hardware write lock; unsuitable where power-loss during write is a risk. | Select if higher-speed operation (400 kHz) is needed and WP functionality is managed in firmware. |
| BR24G08NUX-25 | 8K-bit, 1.7–5.5V, 1 MHz max; TSSOP-8; built-in write protect register (not pin-based); 1.8 µA standby at 2.5V. | Software-configurable protection; lower quiescent current but requires I²C command to enable/disable writes. | Prefer for ultra-low-power battery applications where dynamic WP control is acceptable. |
Compared with M24C08-RMN6TP and BR24G08NUX-25, the AT24C08AN-10SC-2.5 uniquely delivers deterministic hardware-level write blocking via the WP pin - critical for fail-safe parameter storage in unattended industrial systems where firmware cannot guarantee atomic write sequencing.
Availability
AT24C08AN-10SC-2.5 is available at Aetrix Electronics and suitable for industrial sensor nodes, medical diagnostic instruments, automotive body controllers, and smart energy meters requiring stable component supply across multi-year production cycles.
Supply support for AT24C08AN-10SC-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 acquired Atmel in 2016 and maintains full technical and manufacturing continuity for the AT24Cxx family of serial EEPROMs.
The AT24C08AN-10SC-2.5 belongs to Microchip's legacy serial EEPROM product line, designed specifically for cost-sensitive, low-power embedded systems requiring robust nonvolatile storage with minimal pin count and board space.
FAQ
What is the maximum clock frequency supported by AT24C08AN-10SC-2.5 at 2.5V?
The AT24C08AN-10SC-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. Higher frequencies (e.g., 400 kHz) require VCC ≥ 2.7V and are not guaranteed at 2.5V.
How does the Write Protect (WP) pin function on AT24C08AN-10SC-2.5?
On the AT24C08AN-10SC-2.5, the WP pin provides hardware-level write inhibition: when pulled high to VCC, all write operations (byte and page) to the entire 8K array are blocked; when grounded, normal read/write access is enabled. This behavior is confirmed in the WP Pin Status table for the AT24C08A variant.
Which pins are unused (NC) on AT24C08AN-10SC-2.5 and how should they be handled?
A0 and A1 are no-connect (NC) pins on the AT24C08AN-10SC-2.5, as stated in the Pin Description section. They have no internal connection and may be left floating, grounded, or tied to VCC without affecting operation - though grounding is recommended for EMI mitigation in noisy environments.
What is the memory organization and addressing scheme of AT24C08AN-10SC-2.5?
The AT24C08AN-10SC-2.5 is internally organized as 1024 words × 8 bits (8K-bit), divided into 4 blocks of 256 pages × 4 bytes. It requires a 10-bit data word address for random access and uses only the A2 pin for device addressing - allowing up to two AT24C08A devices on a single I²C bus.
Does AT24C08AN-10SC-2.5 support partial page writes, and what is the maximum page size?
Yes, the AT24C08AN-10SC-2.5 supports partial page writes within its 16-byte page boundary. The device allows writing 1 to 16 bytes in a single page write transaction, with automatic internal address incrementing - enabling efficient updates of non-contiguous configuration fields without requiring full-page erasure.
AT24C08AN-10SC-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:
- 4.5 µs
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C08AN-10SC-2.5 FAQ
1.How can I place an order for AT24C08AN-10SC-2.5 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C08AN-10SC-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 AT24C08AN-10SC-2.5 reliable?
The price and inventory of AT24C08AN-10SC-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 AT24C08AN-10SC-2.5 is usually 5 days.
3.What payment methods are accepted for AT24C08AN-10SC-2.5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C08AN-10SC-2.5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C08AN-10SC-2.5?
AT24C08AN-10SC-2.5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C08AN-10SC-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 AT24C08AN-10SC-2.5?
For technical support, including AT24C08AN-10SC-2.5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C08AN-10SC-2.5 requirements.
6.How does Aetrix verify that AT24C08AN-10SC-2.5 is sourced from the original manufacturer or authorized distributors?
All AT24C08AN-10SC-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 AT24C08AN-10SC-2.5 meets industry standards.
7.What is the process for return or replacement of AT24C08AN-10SC-2.5?
All AT24C08AN-10SC-2.5 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C08AN-10SC-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 AT24C08AN-10SC-2.5 part is unused and in its original packaging.
Return procedure for AT24C08AN-10SC-2.5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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