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Microchip Technology AT24C08AN-10SC-1.8
- Part No.:
- AT24C08AN-10SC-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C08AN-10SC-1.8.pdf
- Description:
- IC EEPROM 8KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,884
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Product details
Overview
AT24C08AN-10SC-1.8 from Microchip Technology (formerly Atmel) is an 8K-bit (1024 × 8) I²C-compatible serial EEPROM optimized for ultra-low-voltage embedded systems. It operates from 1.8V to 5.5V, supports 100 kHz I²C bus speed at 1.8V, features hardware write protection via WP pin, and delivers 1 million write cycles with 100-year data retention - used in battery-powered IoT sensors and industrial control firmware storage.
For engineers reviewing the AT24C08AN-10SC-1.8 datasheet, AT24C08AN-10SC-1.8 pinout, AT24C08AN-10SC-1.8 application, or AT24C08AN-10SC-1.8 equivalent, key selection criteria include 1.8V minimum supply compatibility, 8-pin SOIC (8S1) package footprint, page-write capability (16-byte pages), Schmitt-trigger noise immunity on SDA/SCL, and A2-only device addressing for dual-device bus configuration.
Technical Context
The AT24C08AN-10SC-1.8 implements a 2-wire I²C interface with bidirectional open-drain SDA and unidirectional SCL, supporting standard-mode (100 kHz) timing at 1.8V. Its internal memory is organized into four 256-page blocks of 4 bytes each, requiring a 10-bit word address for random access.
Device addressing uses only the A2 pin (A1 and A0 are NC), enabling up to two AT24C08A devices on one bus. Write protection is controlled by the WP pin: tied to VCC disables all writes to the full 8K array; tied to GND enables normal read/write operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8192 bits (1024 × 8), organized as 4 blocks × 256 pages × 4 bytes - supports efficient firmware parameter storage with block-level isolation. |
| Supply Voltage Range | 1.8V to 5.5V - enables direct interfacing with 1.8V logic families and mixed-voltage systems without level shifters. |
| I²C Clock Frequency | 100 kHz max at 1.8V - ensures reliable communication in low-power sensor nodes while meeting standard-mode timing budgets. |
| Write Cycle Time | 10 ms maximum - defines worst-case firmware update latency; supports polling-based completion detection without timeout overhead. |
| Endurance & Retention | 1 million write cycles / 100 years data retention - qualifies for long-life industrial logging and calibration storage applications. |
| ESD Protection | >3000V HBM - provides robust handling during board assembly and field maintenance in unshielded environments. |
| Operating Temperature | -40°C to +85°C - meets industrial temperature grade requirements for factory automation and outdoor metering. |
Pinout & Package
AT24C08AN-10SC-1.8 is supplied in an 8-pin JEDEC SOIC package (package code 8S1), 0.150" wide, with 1.27 mm pitch and gull-wing leads. Pin 1 is marked by a beveled corner or dot.
| 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 electrical connection - no routing or termination required. |
| A2 | Device Address Input | Hardwired address bit; determines one of two possible I²C addresses (0x50 or 0x51) on shared bus. |
| GND | Ground Reference | System common return path; requires low-impedance connection to minimize I²C noise coupling. |
| VCC | Power Supply | 1.8–5.5V input; bypass capacitor (0.1 µF ceramic) mandatory within 5 mm of pin for stable 100 kHz operation. |
| WP | Write Protect Control | Active-high hardware lock: VCC = full-array write disable; GND = full read/write enable. |
| SCL | Serial Clock Input | Unidirectional clock line; requires external pull-up (typically 4.7 kΩ) to VCC for proper I²C signaling. |
| SDA | Serial Data I/O | Bidirectional open-drain data line; shares same pull-up as SCL and supports multi-master arbitration. |
Key Features
| Feature | Design Value |
|---|---|
| 1.8V-compatible I²C interface | Guaranteed 100 kHz operation down to 1.8V supply - eliminates need for voltage translators in ultra-low-power designs. |
| Hardware write protection | WP pin disables writes to entire 8K array when high - prevents accidental firmware corruption during power-up or brownout. |
| 16-byte page write mode | Enables burst programming of up to 16 bytes per write cycle - reduces I²C transaction count and improves firmware update throughput. |
| Schmitt-trigger inputs | Filters noise on SDA/SCL lines - increases immunity to EMI in motor-driven or switching-power-supply environments. |
| Partial page write support | Allows writing fewer than 16 bytes within a page without overwriting adjacent data - simplifies incremental configuration updates. |
Applications
| Smart Meter Calibration Storage | Industrial PLC Configuration Backup |
|---|---|
Use Scenario: Storing calibrated sensor offsets and tariff tables in electricity/water meters operating on coin-cell batteries. IC Role / Device Role / Timing Role: Nonvolatile parameter storage with infrequent writes and frequent reads; retains data across 10+ year deployments. Use Value: 1.8V operation extends battery life; 100-year retention eliminates field recalibration; WP pin prevents tampering during firmware upgrades. |
Use Scenario: Holding user-defined ladder logic parameters and I/O mapping in programmable logic controllers exposed to factory EMI. IC Role / Device Role / Timing Role: Robust configuration memory that survives power loss, vibration, and electrical transients. Use Value: >3000V HBM ESD rating withstands handling stress; Schmitt-trigger inputs reject noise from nearby contactors; -40°C to +85°C range ensures reliability in control cabinets. |
| IoT Edge Node Firmware Metadata | Medical Device Usage Logs |
Use Scenario: Recording firmware version, boot counter, and last-known-good configuration in BLE/Wi-Fi edge gateways. IC Role / Device Role / Timing Role: Low-overhead metadata store accessed during boot sequence and OTA update verification. Use Value: 100 kHz I²C speed at 1.8V enables fast boot-time reads; 1M endurance supports daily logging for >2700 years; small SOIC footprint saves PCB area. |
Use Scenario: Archiving usage timestamps, error codes, and calibration history in portable diagnostic equipment with strict regulatory traceability. IC Role / Device Role / Timing Role: Tamper-resistant audit trail memory with write-lock enforcement during clinical operation. Use Value: WP pin hardwired to system security controller prevents unauthorized log modification; 100-year retention satisfies FDA 21 CFR Part 11 archival requirements. |
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 and 1.8V operation, but uses newer process with improved 400 kHz support at 1.8V and enhanced ESD (4000V HBM). | Supports faster firmware updates in battery-powered devices where 400 kHz bus speed is needed without voltage boost. | Select AT24C08D-SSHM-T if higher-speed I²C and extended ESD margin are required; verify layout compatibility with 8-pin TSSOP package. |
| M24C08-RMN6TP | STMicroelectronics 8K EEPROM with identical 1.8–5.5V range and 100 kHz @ 1.8V, but uses different A2/A1/A0 addressing scheme (all three pins active) and lacks dedicated WP pin. | Requires software-controlled write protection and supports up to eight devices per bus instead of two. | Choose M24C08-RMN6TP only if bus scalability (8-device addressing) outweighs need for hardware write lock; add external GPIO control for write safety. |
Compared with AT24C08AN-10SC-1.8, AT24C08D-SSHM-T offers faster timing and higher ESD tolerance in TSSOP, while M24C08-RMN6TP trades hardware WP for greater bus density - neither is pin-compatible, requiring PCB redesign and firmware adaptation for address and protection logic.
Availability
AT24C08AN-10SC-1.8 is available at Aetrix Electronics and suitable for industrial control, medical diagnostics, and smart metering applications requiring stable component supply, long-term lifecycle assurance, and guaranteed 1.8V operation.
Supply support for AT24C08AN-10SC-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 product continuity, quality control, and technical documentation for the AT24Cxx family of serial EEPROMs.
The AT24C08A series was designed specifically for low-voltage, space-constrained embedded systems needing reliable nonvolatile storage with minimal external components and robust noise immunity.
FAQ
What is the maximum I²C clock frequency supported by AT24C08AN-10SC-1.8 at 1.8V?
The AT24C08AN-10SC-1.8 supports a maximum I²C clock frequency of 100 kHz when operating at 1.8V. This is specified in the AC Characteristics table under fSCL for 1.8V/2.5V/2.7V conditions. Attempting 400 kHz at 1.8V violates timing specifications and may cause communication failures or data corruption in the AT24C08AN-10SC-1.8.
How many AT24C08AN-10SC-1.8 devices can share the same I²C bus?
Up to two AT24C08AN-10SC-1.8 devices can operate on a single I²C bus. This is because the AT24C08A uses only the A2 pin for hardware device addressing (A1 and A0 are no-connect), yielding two possible 7-bit addresses: 0x50 and 0x51. Adding a third AT24C08AN-10SC-1.8 would cause address collision and bus contention.
What happens to the AT24C08AN-10SC-1.8 when the WP pin is left unconnected?
Leaving the WP pin unconnected on the AT24C08AN-10SC-1.8 results in undefined write protection behavior due to floating input. The datasheet specifies WP must be actively driven to either VCC (to disable writes) or GND (to enable writes). An unconnected WP pin risks intermittent write-enable states, potentially causing unintended data corruption during power transitions or noise events in the AT24C08AN-10SC-1.8.
Does AT24C08AN-10SC-1.8 support partial page writes, and what is the page size?
Yes, the AT24C08AN-10SC-1.8 supports partial page writes within its 16-byte pages. Each page holds 16 bytes, and the device allows writing any number of bytes (1–16) starting at any address within the page boundary. If a write crosses a page boundary, the remaining bytes wrap to the start of the same page - a behavior explicitly defined for the AT24C08AN-10SC-1.8 in the Page Write section.
What package type and dimensions does AT24C08AN-10SC-1.8 use?
AT24C08AN-10SC-1.8 uses an 8-pin JEDEC SOIC package (package code 8S1), 0.150" wide, with 1.27 mm lead pitch and gull-wing leads. Overall dimensions are 4.9 × 6.0 mm (L × W), body thickness 1.75 mm, and lead length 1.27 mm - matching industry-standard SOIC-8 footprints used across the AT24Cxx family.
AT24C08AN-10SC-1.8 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:
- 1.8V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C08AN-10SC-1.8 FAQ
1.How can I place an order for AT24C08AN-10SC-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C08AN-10SC-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 AT24C08AN-10SC-1.8 reliable?
The price and inventory of AT24C08AN-10SC-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 AT24C08AN-10SC-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C08AN-10SC-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C08AN-10SC-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C08AN-10SC-1.8?
AT24C08AN-10SC-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C08AN-10SC-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 AT24C08AN-10SC-1.8?
For technical support, including AT24C08AN-10SC-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C08AN-10SC-1.8 requirements.
6.How does Aetrix verify that AT24C08AN-10SC-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C08AN-10SC-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 AT24C08AN-10SC-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C08AN-10SC-1.8?
All AT24C08AN-10SC-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C08AN-10SC-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 AT24C08AN-10SC-1.8 part is unused and in its original packaging.
Return procedure for AT24C08AN-10SC-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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