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Microchip Technology AT24C08AN-10SC
- Part No.:
- AT24C08AN-10SC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C08AN-10SC.pdf
- Description:
- IC EEPROM 8KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,889
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Product details
Overview
AT24C08AN-10SC from Microchip Technology (formerly Atmel) is an 8K-bit (1024 × 8) I²C-compatible serial EEPROM with hardware write protection, low-voltage operation (2.7V to 5.5V), and 100-year data retention. It supports 100 kHz I²C communication at 2.7V and delivers 1 million write cycles in industrial temperature range (−40°C to +85°C). It is used for configuration storage in embedded controllers, sensor calibration data logging, and power-fail-safe parameter backup.
For engineers reviewing the AT24C08AN-10SC datasheet, AT24C08AN-10SC pinout, AT24C08AN-10SC application, or AT24C08AN-10SC equivalent, key selection factors include its 2.7V–5.5V supply range, 16-byte page write capability, WP pin-based hardware lock, SOIC-8 package compatibility, and guaranteed 10 ms max write cycle time under industrial conditions.
Technical Context
The AT24C08AN-10SC implements a fixed 10-bit internal address space (0x000–0x3FF) mapped across four 256-byte blocks, with A2 as the sole hard-wired device address bit-A0 and A1 are no-connects. Its I²C interface uses open-drain SDA/SCL with Schmitt-trigger inputs and noise filtering, enabling robust operation in electrically noisy environments.
Write protection is implemented via the WP pin: when tied to VCC, full 8K array write access is disabled; when grounded, standard read/write operations proceed. The device enters low-power standby mode (<4 µA at 2.7V) after STOP condition receipt and supports acknowledge polling to detect write completion without timeout delays.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8192 bits (1024 × 8), organized as 4 blocks of 256 pages × 4 bytes - enables efficient block-level updates and reduces address overhead in firmware. |
| Supply Voltage Range | 2.7V to 5.5V - supports direct interfacing with 3.3V microcontrollers and legacy 5V systems without level-shifting. |
| I²C Clock Frequency | 100 kHz max at 2.7V - ensures timing compliance with slow-clock microcontrollers and long-trace bus designs. |
| Page Write Size | 16 bytes per page - minimizes write transaction count and improves throughput vs. byte-write-only EEPROMs. |
| Write Cycle Time | 10 ms maximum - defines worst-case firmware delay before next command; self-timed and non-interruptible. |
| Data Retention | 100 years at 25°C - guarantees long-term integrity of stored calibration, serial numbers, or security keys without refresh. |
| Endurance | 1 million write cycles - supports frequent field-updatable parameters in industrial control and telemetry applications. |
Pinout & Package
AT24C08AN-10SC is housed in an 8-pin JEDEC SOIC (package code 8S1), 0.150" wide, with standard gull-wing lead form. Pin 1 is marked by a bevelled corner or dot; leads are tin-plated, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | No-connect | Internally unconnected; must be left floating or tied to GND/VCC - no effect on addressing or functionality. |
| A1 | No-connect | Internally unconnected; no electrical or functional role - no external bias required. |
| A2 | Device Address Input | Hard-wired address bit; selects one of two possible 8K devices on same I²C bus (0 = default, 1 = alternate). |
| GND | Ground Reference | Return path for all internal circuitry and I/O; requires low-impedance connection to system ground plane. |
| VCC | Power Supply | Primary power input; must be decoupled with ≥0.1 µF ceramic capacitor placed within 5 mm of pin. |
| WP | Write Protect Control | Active-high hardware lock: logic high disables all writes to entire 8K array; grounded enables full read/write access. |
| SCL | I²C Clock Input | Open-drain input with Schmitt trigger; requires external pull-up resistor (typically 2.2–10 kΩ) to VCC. |
| SDA | I²C Data I/O | Bidirectional open-drain line; shares pull-up with SCL; supports multi-master arbitration and clock stretching. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Write Protection | WP pin disables writes to full 8K memory array when driven high - prevents accidental overwrites during firmware updates or brown-out events. |
| Low-Voltage Operation | Functional down to 2.7V supply - eliminates need for voltage translators when interfacing with 3.3V or mixed-voltage SoCs. |
| Noise-Resilient I²C Interface | Schmitt-trigger inputs and filtered SDA/SCL - suppresses >100 ns glitches and sustains reliable communication in motor-drive or switching-power environments. |
| 16-Byte Page Writes | Reduces I²C transaction count by up to 16× vs. byte writes - cuts firmware execution time and bus occupancy in configuration save routines. |
| Industrial Temperature Range | Specified from −40°C to +85°C - validated for use in outdoor metering, factory automation, and automotive body-control modules. |
Applications
| Smart Energy Meters | Industrial PLC Modules |
|---|---|
Use Scenario: Storing tariff tables, meter calibration coefficients, and tamper-event logs across power outages. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding critical operational parameters with guaranteed 100-year retention. Use Value: Eliminates battery-backed SRAM; survives >1M meter reconfigurations and maintains accuracy through 20+ years of field deployment. | Use Scenario: Saving ladder logic state, I/O mapping, and firmware update flags in programmable logic controllers. IC Role / Device Role / Timing Role: Persistent storage for volatile runtime data that must survive cold restarts and watchdog resets. Use Value: Enables deterministic boot behavior and eliminates manual reconfiguration after power loss or firmware reload. |
| Medical Diagnostic Sensors | Automotive Body Controllers |
Use Scenario: Recording sensor offset drift compensation values and patient-specific calibration profiles during device manufacturing and servicing. IC Role / Device Role / Timing Role: Factory-programmed calibration memory accessed only during initialization or service mode. Use Value: WP pin locks calibration data post-configuration, preventing corruption during routine diagnostics or software updates. | Use Scenario: Storing seat-position memory, mirror-angle presets, and lighting configuration in vehicle door modules. IC Role / Device Role / Timing Role: Low-power, fast-access storage for user preferences retained across ignition cycles. Use Value: Operates reliably at 3.3V from CAN/LIN domain supplies; 4 µA standby current extends battery life in always-on modules. |
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 capacity, 2.5V–5.5V supply, but uses newer process with enhanced ESD (>4kV HBM) and tighter tWR distribution (typ 5 ms). | Preferred for new designs requiring higher reliability in handling-sensitive assembly or harsh EMC environments. | Select AT24C08D-SSHM-T if upgrading for improved manufacturability or extended ESD margin; not drop-in due to different package marking and minor AC timing shifts. |
| BR24G08NUX-10 | Rohm's 8K I²C EEPROM with identical 2.7V–5.5V range and 100 kHz speed, but offers 1.7V min operation and built-in write-cycle endurance counter. | Suitable where ultra-low-voltage headroom or lifetime usage monitoring is required beyond AT24C08AN-10SC capabilities. | Choose BR24G08NUX-10 only if 1.7V operation or endurance tracking is mandatory; pinout matches but WP logic polarity differs (active-low). |
Compared with AT24C08AN-10SC, AT24C08D-SSHM-T provides tighter write timing and higher ESD robustness at slightly higher cost, while BR24G08NUX-10 extends voltage range downward and adds diagnostic features-but neither offers pin-to-pin or functional drop-in replacement without validation of WP polarity and endurance counter integration.
Availability
AT24C08AN-10SC is available at Aetrix Electronics and suitable for smart metering, industrial PLCs, medical sensors, and automotive body control units requiring stable component supply across extended product lifecycles.
Supply support for AT24C08AN-10SC 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 deep expertise in embedded control and secure data storage.
The AT24C08AN-10SC belongs to Microchip's legacy AT24CxxA serial EEPROM family, designed specifically for reliable, low-power, I²C-based configuration and calibration storage in industrial, automotive, and consumer systems.
FAQ
What is the operating temperature range for the AT24C08AN-10SC?
The AT24C08AN-10SC is rated for industrial operation from −40°C to +85°C. This range is verified per the datasheet's "Operating Temperature" specification and applies to all DC and AC parameters including write endurance, data retention, and I²C timing compliance. The "-10SC" suffix explicitly denotes the SOIC-8 industrial-grade variant of the AT24C08AN-10SC.
Does the AT24C08AN-10SC support 400 kHz I²C communication?
No, the AT24C08AN-10SC does not support 400 kHz I²C operation. Per its ordering code "-10SC-2.7", it is the 2.7V–5.5V version with 100 kHz maximum clock frequency. Only the standard 5V versions (e.g., AT24C08A-10SC) support 400 kHz. Using 400 kHz with AT24C08AN-10SC may result in failed ACKs or data corruption.
How many devices can share the same I²C bus with the AT24C08AN-10SC?
Up to two AT24C08AN-10SC devices can coexist on a single I²C bus. This is because the AT24C08A family uses only the A2 pin for hardware device addressing (A0 and A1 are no-connects), yielding two possible addresses: 0x50 (A2 = 0) and 0x51 (A2 = 1). Each device must have a unique A2 connection to avoid address collision.
What happens when the WP pin of the AT24C08AN-10SC is left unconnected?
Leaving the WP pin of the AT24C08AN-10SC unconnected is not recommended. The pin has no internal pull-up or pull-down; floating WP may cause intermittent write protection activation due to noise coupling, leading to unpredictable write failures. Always tie WP to GND for full read/write access or to VCC for full-array lockout - never leave it floating.
Is the AT24C08AN-10SC RoHS compliant and lead-free?
Yes, the AT24C08AN-10SC is RoHS compliant and lead-free. Its packaging information confirms compliance with EU Directive 2011/65/EU, and the SOIC-8 (8S1) package uses matte tin lead finish. This is consistent with Microchip's public environmental compliance documentation for the AT24CxxA family released post-2006.
AT24C08AN-10SC 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C08AN-10SC FAQ
1.How can I place an order for AT24C08AN-10SC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C08AN-10SC 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 reliable?
The price and inventory of AT24C08AN-10SC 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 is usually 5 days.
3.What payment methods are accepted for AT24C08AN-10SC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C08AN-10SC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C08AN-10SC?
AT24C08AN-10SC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C08AN-10SC 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?
For technical support, including AT24C08AN-10SC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C08AN-10SC requirements.
6.How does Aetrix verify that AT24C08AN-10SC is sourced from the original manufacturer or authorized distributors?
All AT24C08AN-10SC 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 meets industry standards.
7.What is the process for return or replacement of AT24C08AN-10SC?
All AT24C08AN-10SC units undergo pre-shipment inspection (PSI). If there is an issue with AT24C08AN-10SC, 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 part is unused and in its original packaging.
Return procedure for AT24C08AN-10SC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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