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Microchip Technology AT24C11N-10SI-2.7
- Part No.:
- AT24C11N-10SI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C11N-10SI-2.7.pdf
- Description:
- IC EEPROM 1KBIT I2C 1MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,374
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Product details
Overview
AT24C11N-10SI-2.7 from Microchip Technology (formerly Atmel) is a 1K-bit (128 × 8) two-wire serial EEPROM optimized for low-voltage industrial applications. It operates from 2.7V to 5.5V, supports 400 kHz I²C communication at 1.8V and 1 MHz at 2.7V/5V, features 4-byte page write mode, self-timed 5 ms max write cycle, and delivers 1 million write cycles with 100-year data retention. It is used in embedded systems for parameter storage, calibration data backup, and configuration memory in automotive control units and industrial sensors.
For engineers reviewing the AT24C11N-10SI-2.7 datasheet, AT24C11N-10SI-2.7 pinout, AT24C11N-10SI-2.7 application, or AT24C11N-10SI-2.7 equivalent, this page provides verified package mapping (8-lead JEDEC SOIC), confirmed pin functions (SDA, SCL, TEST, VCC, GND), real-world timing specs (tWR = 5 ms, fSCL = 1 MHz @ 2.7V), endurance (1M cycles), and validated alternatives for industrial-grade serial EEPROM replacement.
Technical Context
The AT24C11N-10SI-2.7 implements a standard two-wire (I²C-compatible) interface with open-drain SDA and edge-triggered SCL pins, supporting bidirectional data transfer under strict timing constraints (tLOW = 0.4 µs, tSU.STA = 0.6 µs at 2.7V). Its internal architecture organizes 1024 bits into 32 pages of 4 bytes each, with automatic address incrementing within a page and rollover behavior on boundary overflow.
It uses a dedicated TEST pin tied to GND or VCC for factory test mode selection, and includes no address pins (A0–A2), indicating fixed device addressing. Standby current is 1.6 µA typical at 2.7V, and it enters low-power standby after STOP condition receipt or power-up, with no external wake-up required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1024 bits (128 × 8), sufficient for small configuration tables or sensor calibration offsets in space-constrained designs. |
| Supply Voltage Range | 2.7V to 5.5V - compatible with 3.3V and 5V logic domains without level shifting. |
| I²C Clock Frequency | 1 MHz maximum at 2.7V/5V - enables fast parameter updates during system initialization or field reprogramming. |
| Write Cycle Time | 5 ms maximum - defines minimum interval between successive write commands; impacts firmware polling or timeout design. |
| Endurance | 1 million write cycles - supports frequent logging or dynamic parameter adjustment over product lifetime. |
| Data Retention | 100 years at +25°C - ensures long-term reliability for unattended industrial equipment and automotive modules. |
| Operating Temperature | –40°C to +85°C - qualified for industrial ambient conditions without derating. |
Pinout & Package
AT24C11N-10SI-2.7 is supplied in an 8-lead JEDEC SOIC package (package code 8S1), measuring 4.80–5.00 mm × 5.79–6.20 mm × 1.35–1.75 mm, with gull-wing leads and 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connect (NC) | Unbonded die pad; must be left floating or grounded per layout best practice - no electrical function. |
| 2 | No Connect (NC) | Unbonded die pad; electrically inert - no routing or connection required. |
| 3 | No Connect (NC) | Unbonded die pad; no signal or power role - omit from PCB netlist. |
| 4 | GND | Ground reference for all internal circuitry and I²C bus termination; requires low-impedance connection to system ground plane. |
| 5 | VCC | Primary power supply input (2.7V–5.5V); must be decoupled with ≥0.1 µF ceramic capacitor near pin. |
| 6 | TEST | Factory test mode control - connect to GND or VCC per production test requirements; not used in normal operation. |
| 7 | SCL | Serial clock input - driven by master device; requires external pull-up resistor (typically 2.2–10 kΩ) to VCC. |
| 8 | SDA | Open-drain bidirectional data line - shared across I²C bus; requires same external pull-up as SCL. |
Key Features
| Feature | Design Value |
|---|---|
| Two-wire serial interface | Fully compatible with I²C protocol (START/STOP/ACK), enabling integration with microcontrollers lacking SPI peripherals. |
| 4-byte page write mode | Reduces write transaction overhead by up to 75% vs. byte writes - improves firmware efficiency when updating multi-byte parameters. |
| Self-timed 5 ms write cycle | Eliminates need for external write-complete polling delay - simplifies driver code and avoids bus contention. |
| 1 million write endurance | Supports daily reconfiguration over 27+ years - suitable for field-upgradable firmware metadata or runtime-calibrated sensor coefficients. |
| Automotive-grade qualification | Meets extended temperature (–40°C to +85°C) and lead-free/halogen-free requirements - approved for under-hood and industrial control environments. |
Applications
| Industrial Sensor Calibration | Embedded System Configuration |
|---|---|
Use Scenario: Storing factory-trimmed gain/offset values for analog sensor front-ends in programmable logic controllers (PLCs). IC Role / Device Role / Timing Role: Nonvolatile configuration memory holding calibration constants accessed at power-on reset via I²C. Use Value: Enables plug-and-play sensor replacement without manual recalibration; leverages 100-year retention to maintain accuracy across equipment lifecycle. |
Use Scenario: Holding user-defined settings (e.g., display brightness, communication baud rate) in medical diagnostic handheld devices. IC Role / Device Role / Timing Role: Parameter storage element interfaced to ARM Cortex-M0+ MCU via 1 MHz I²C bus during boot sequence. Use Value: Supports instant restoration of user preferences after power loss; 1M endurance accommodates frequent UI-driven updates. |
| Automotive Body Control Module | Smart Energy Meter Firmware Metadata |
Use Scenario: Recording door lock actuation history and window position limits in vehicle body control units (BCUs). IC Role / Device Role / Timing Role: Event-logging memory accessed asynchronously by 8-bit MCU over robust 2.7V–5.5V I²C link. Use Value: Meets AEC-Q100 stress requirements and –40°C to +85°C operation; 4-byte page writes minimize bus occupancy during CAN-interrupted logging. |
Use Scenario: Storing firmware version, security key flags, and metering algorithm checksums in ANSI C12.22-compliant smart meters. IC Role / Device Role / Timing Role: Secure configuration vault accessed only during firmware update or secure boot verification. Use Value: Guarantees tamper-resistant persistence of critical metadata; 5 ms write time aligns with secure erase/write protocols mandated by utility standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Microchip AT24C01C-SSHM-T | 1K-bit, 1.7V–5.5V, 1 MHz I²C, 8-lead SOIC, but lacks TEST pin and uses A0/A1 address inputs. | Requires external address configuration; no TEST pin simplifies layout but removes factory test access. | Select when fixed I²C address is acceptable and TEST functionality is unnecessary. |
| ON Semiconductor CAT24C01HU4IGT3 | 1K-bit, 1.8V–5.5V, 400 kHz max (1.8V), 8-lead TSSOP, no TEST pin, different AC timing (tBUF = 0.5 µs vs. 0.25 µs). | Lower speed at 1.8V; TSSOP footprint differs from SOIC - requires PCB redesign. | Choose for cost-sensitive consumer designs where 400 kHz suffices and TSSOP is preferred. |
Compared with AT24C11N-10SI-2.7, AT24C01C-SSHM-T offers simpler addressing but no TEST pin, while CAT24C01HU4IGT3 trades speed and package compatibility for lower unit cost - both require validation of timing margins and layout changes.
Availability
AT24C11N-10SI-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, embedded system configuration, and automotive body control modules requiring stable component supply, long-term obsolescence management, and RoHS-compliant sourcing.
Supply support for AT24C11N-10SI-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 global semiconductor company specializing in microcontrollers, analog devices, and nonvolatile memory solutions, with a focus on reliability, longevity, and embedded system integration.
The AT24C11N-10SI-2.7 belongs to Microchip's legacy AT24C serial EEPROM family, designed specifically for low-power, industrial-grade parameter storage in resource-constrained embedded systems requiring guaranteed data integrity over decades.
FAQ
What is the operating voltage range for AT24C11N-10SI-2.7?
The AT24C11N-10SI-2.7 operates from 2.7V to 5.5V, making it compatible with both 3.3V and 5V logic systems. This voltage range is explicitly defined in the ordering code suffix "–2.7" and confirmed in DC Characteristics Table 3, where VCC3 min = 2.7V. Operation below 2.7V is not supported for this variant.
Does AT24C11N-10SI-2.7 support standard I²C communication?
Yes, AT24C11N-10SI-2.7 implements a two-wire serial interface fully compatible with I²C protocol specifications, including START/STOP conditions, ACK/NACK handshaking, and 7-bit addressing. It supports 1 MHz clock frequency at 2.7V and 5V, and 400 kHz at 1.8V - though the –2.7 variant is rated for 1 MHz operation.
What is the function of the TEST pin on AT24C11N-10SI-2.7?
The TEST pin on AT24C11N-10SI-2.7 is a factory test input that must be connected to either GND or VCC during production testing. It has no functional role in normal operation and may be left unconnected or tied to GND in end-user designs, as specified in the Pin Description section and Figure 1 pinout diagrams.
How many write cycles can AT24C11N-10SI-2.7 endure?
AT24C11N-10SI-2.7 guarantees 1 million write cycles per memory location, as documented in Table 4 (Endurance) and Features list. This endurance rating applies under standard conditions (5.0V, 25°C, page mode) and supports long-term reliability in applications requiring frequent parameter updates.
What package type is used for AT24C11N-10SI-2.7?
AT24C11N-10SI-2.7 uses an 8-lead JEDEC SOIC package (package code 8S1), as indicated in the Ordering Information table and confirmed by the "SI" suffix in the part number. Its dimensions are 4.80–5.00 mm × 5.79–6.20 mm × 1.35–1.75 mm, with 1.27 mm lead pitch and gull-wing lead form.
AT24C11N-10SI-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:
- 1Kbit
- Memory Organization:
- 128 x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 1 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 550 ns
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C11N-10SI-2.7 FAQ
1.How can I place an order for AT24C11N-10SI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C11N-10SI-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 AT24C11N-10SI-2.7 reliable?
The price and inventory of AT24C11N-10SI-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 AT24C11N-10SI-2.7 is usually 5 days.
3.What payment methods are accepted for AT24C11N-10SI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C11N-10SI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C11N-10SI-2.7?
AT24C11N-10SI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C11N-10SI-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 AT24C11N-10SI-2.7?
For technical support, including AT24C11N-10SI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C11N-10SI-2.7 requirements.
6.How does Aetrix verify that AT24C11N-10SI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT24C11N-10SI-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 AT24C11N-10SI-2.7 meets industry standards.
7.What is the process for return or replacement of AT24C11N-10SI-2.7?
All AT24C11N-10SI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C11N-10SI-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 AT24C11N-10SI-2.7 part is unused and in its original packaging.
Return procedure for AT24C11N-10SI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT24C11N-10SI-2.7 Tags
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