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Microchip Technology AT24C08AN-10SU-2.7
- Part No.:
- AT24C08AN-10SU-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C08AN-10SU-2.7.pdf
- Description:
- IC EEPROM 8KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,543
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Product details
Overview
AT24C08AN-10SU-2.7 from Microchip Technology is an 8K-bit (1024 × 8) two-wire serial EEPROM with 2.7V to 5.5V supply operation, 400 kHz I²C interface speed at 2.7V+, 16-byte page write capability, and hardware write protection via WP pin. It serves as nonvolatile configuration storage in microcontroller-based industrial control modules.
For engineers reviewing the AT24C08AN-10SU-2.7 datasheet, AT24C08AN-10SU-2.7 pinout, AT24C08AN-10SU-2.7 application, or AT24C08AN-10SU-2.7 equivalent, key selection factors include its SOIC-8 package, 10-bit addressing, 64-page memory architecture, Schmitt-trigger inputs for noise immunity, and 1 million write cycle endurance.
Technical Context
The AT24C08AN-10SU-2.7 implements a standard I²C-compatible two-wire interface with open-drain SDA/SCL pins, supports bidirectional data transfer using acknowledge polling, and uses A2-only hardwired device addressing (A0/A1 = NC) to allow up to two devices on one bus. Its internal address counter enables sequential reads across page boundaries.
It features a self-timed 5 ms max write cycle, 100-year data retention, and operates across –40°C to +85°C. The SOIC-8 package (8S1) matches JEDEC MS-012 AA, with 0.150" body width and 1.27 mm lead pitch - confirmed by Microchip's ordering information and mechanical drawings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8192 bits (1024 words × 8 bits), organized as 64 pages of 16 bytes each - enables efficient firmware parameter storage with page-aligned writes. |
| Supply Voltage | 2.7V to 5.5V - compatible with 3.3V and 5V logic systems without level shifting. |
| I²C Speed | 400 kHz maximum (at VCC ≥ 2.7V) - supports fast configuration loading in real-time embedded systems. |
| Write Endurance | 1,000,000 cycles - suitable for applications requiring frequent calibration or logging updates. |
| Data Retention | 100 years at +25°C - ensures long-term reliability in unattended equipment like utility meters or remote sensors. |
| Page Write Size | 16 bytes per page - reduces write overhead vs. byte-write mode and aligns with common MCU buffer sizes. |
| Operating Temp | –40°C to +85°C - qualified for industrial-grade deployment in harsh environments. |
Pinout & Package
AT24C08AN-10SU-2.7 is packaged in an 8-lead JEDEC SOIC (8S1), 0.150" wide, with 1.27 mm lead pitch and RoHS-compliant green finish ("U" suffix). Pin 1 is marked with a notch or dot; leads are gull-wing shaped and surface-mount compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | No-connect (NC) | Internally unused; must be tied to GND or left floating - no effect on device addressing. |
| A1 | No-connect (NC) | Internally unused; must be tied to GND or left floating - no effect on device addressing. |
| A2 | Device Address Input | Hardwired bit selects one of two possible I²C addresses (1010xxx0/1); enables dual-device bus topology. |
| GND | Ground Reference | Return path for all internal circuitry and I/O; requires low-impedance connection to system ground plane. |
| VCC | Power Supply | 2.7–5.5V DC input; bypass capacitor (0.1 µF ceramic) recommended near pin for noise suppression. |
| WP | Write Protect Control | Active-high hardware lock: tied to VCC disables all writes; tied to GND enables full read/write access. |
| SCL | Serial Clock Input | Open-drain input synchronized to master clock; requires external pull-up resistor (typically 2.2–10 kΩ). |
| SDA | Serial Data I/O | Open-drain bidirectional line; shares pull-up with SCL or uses dedicated resistor; supports multi-master arbitration. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Suppresses noise on SCL/SDA lines - eliminates false triggering in electrically noisy industrial enclosures. |
| 16-byte page write | Reduces I²C transaction count by up to 15× vs. byte writes - lowers bus occupancy and improves system responsiveness. |
| Self-timed write cycle | Fixed 5 ms max internal erase/write - simplifies firmware timing; no external delay or status polling required. |
| Hardware write protection | WP pin provides tamper-resistant configuration locking - prevents accidental overwrites during field firmware updates. |
| 100 kHz @ 1.8V / 400 kHz @ 2.7V+ | Enables backward compatibility with legacy 1.8V controllers while delivering higher throughput in modern 3.3V designs. |
Applications
| Industrial Sensor Calibration Storage | Smart Meter Configuration Memory |
|---|---|
Use Scenario: Storing temperature/pressure sensor offset and gain coefficients updated during factory calibration and field recalibration. IC Role / Device Role / Timing Role: Nonvolatile parameter register accessed infrequently via I²C during boot or maintenance mode. Use Value: Enables field-upgradable calibration without firmware reflash; 1M endurance supports >100 recalibrations over product lifetime. |
Use Scenario: Holding tariff tables, billing registers, and communication protocol settings in electricity/water/gas meters. IC Role / Device Role / Timing Role: Secure configuration store with WP pin enabled during normal operation to prevent corruption from transient faults. Use Value: Guarantees metering accuracy integrity; 100-year retention meets utility regulatory requirements for 20+ year deployments. |
| PLC I/O Module Parameter Backup | Medical Device Setup Profile Storage |
Use Scenario: Preserving channel scaling factors, alarm thresholds, and sampling rates across power cycles in programmable logic controller I/O cards. IC Role / Device Role / Timing Role: Low-power standby-mode memory accessed only during initialization or configuration changes. Use Value: Eliminates need for battery-backed SRAM; -40°C to +85°C rating ensures reliable operation inside DIN-rail mounted enclosures. |
Use Scenario: Saving user-selected therapy parameters (e.g., infusion rate, dose limits) and device serialization data in portable infusion pumps or diagnostic tools. IC Role / Device Role / Timing Role: Certified data storage element supporting IEC 62304 Class B software requirements. Use Value: Meets medical-grade reliability targets: 1M write cycles enable >5000 patient sessions; RoHS-compliant "U" package satisfies regulatory material restrictions. |
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 SOIC-8 package, but rated for 1.7–5.5V operation and features enhanced ESD protection (4 kV HBM). | Preferred for battery-powered or mixed-voltage systems where 1.7V start-up is required; not drop-in due to different voltage min spec. | Select when wider voltage range or higher ESD robustness is needed; verify WP pin behavior and AC timing at 1.7V. |
| M24C08-RMN6TP | 8K-bit EEPROM in SOIC-8, but uses Microwire interface (3-wire) instead of I²C; 200 kHz max clock; 400 kcycles endurance. | Requires different MCU peripheral (SPI-like) and driver stack; unsuitable for existing I²C bus topologies. | Consider only for new designs targeting STMicro's ecosystem or where Microwire is already standardized. |
Compared with AT24C08AN-10SU-2.7, AT24C08D-SSHM-T extends low-voltage operation and ESD tolerance but requires validation below 2.7V, while M24C08-RMN6TP mandates interface redesign and accepts lower endurance - making AT24C08AN-10SU-2.7 optimal for cost-sensitive, I²C-based industrial upgrades.
Availability
AT24C08AN-10SU-2.7 is available at Aetrix Electronics and suitable for industrial control systems, smart metering infrastructure, and medical device manufacturing requiring stable component supply and long-term obsolescence management.
Supply support for AT24C08AN-10SU-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 is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and nonvolatile memory solutions for industrial, automotive, and consumer markets.
The AT24C08AN-10SU-2.7 belongs to Microchip's AT24CxxA serial EEPROM family, designed specifically for low-power, space-constrained embedded systems needing reliable, pin-efficient configuration storage with I²C compatibility.
FAQ
What is the maximum I²C clock frequency supported by AT24C08AN-10SU-2.7?
The AT24C08AN-10SU-2.7 supports up to 400 kHz I²C clock frequency when operated at VCC ≥ 2.7V. At 1.8V operation (not applicable to this -2.7 variant), the maximum is 100 kHz. Timing compliance is verified per Table 5 in the official datasheet, including tLOW, tHIGH, and tBUF specifications.
How many devices can share the same I²C bus with AT24C08AN-10SU-2.7?
Up to two AT24C08AN-10SU-2.7 devices can coexist on a single I²C bus. This is because only the A2 pin is used for device addressing (A0 and A1 are NC), yielding two possible 7-bit addresses: 1010000b and 1010001b - enabling simple dual-device configurations without address conflicts.
Does AT24C08AN-10SU-2.7 require external pull-up resistors on SDA and SCL lines?
Yes, AT24C08AN-10SU-2.7 requires external pull-up resistors on both SDA and SCL lines because its I/O pins are open-drain. Typical values range from 2.2 kΩ to 10 kΩ depending on bus capacitance and speed; 4.7 kΩ is commonly used for 400 kHz operation with ≤400 pF total bus load.
What is the function of the WP pin on AT24C08AN-10SU-2.7?
The WP (Write Protect) pin on AT24C08AN-10SU-2.7 provides hardware-level write inhibition. When pulled high to VCC, it disables all write operations (including page and byte writes) across the entire memory array. When grounded, full read/write functionality is restored - enabling secure configuration lockdown during field operation.
Is AT24C08AN-10SU-2.7 compatible with 1.8V I²C masters?
No, AT24C08AN-10SU-2.7 is specified for 2.7V to 5.5V operation only (denoted by "-2.7" suffix). For 1.8V systems, Microchip offers the AT24C08AN-10SU-1.8 variant. Interfacing the -2.7 version with a 1.8V master risks violating VIH/VIL thresholds and may cause communication failure or excessive current draw.
AT24C08AN-10SU-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:
- 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:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C08AN-10SU-2.7 FAQ
1.How can I place an order for AT24C08AN-10SU-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C08AN-10SU-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 AT24C08AN-10SU-2.7 reliable?
The price and inventory of AT24C08AN-10SU-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 AT24C08AN-10SU-2.7 is usually 5 days.
3.What payment methods are accepted for AT24C08AN-10SU-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C08AN-10SU-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C08AN-10SU-2.7?
AT24C08AN-10SU-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C08AN-10SU-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 AT24C08AN-10SU-2.7?
For technical support, including AT24C08AN-10SU-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C08AN-10SU-2.7 requirements.
6.How does Aetrix verify that AT24C08AN-10SU-2.7 is sourced from the original manufacturer or authorized distributors?
All AT24C08AN-10SU-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 AT24C08AN-10SU-2.7 meets industry standards.
7.What is the process for return or replacement of AT24C08AN-10SU-2.7?
All AT24C08AN-10SU-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C08AN-10SU-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 AT24C08AN-10SU-2.7 part is unused and in its original packaging.
Return procedure for AT24C08AN-10SU-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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