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Microchip Technology AT24C11N-10SU-1.8
- Part No.:
- AT24C11N-10SU-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C11N-10SU-1.8.pdf
- Description:
- IC EEPROM 1KBIT I2C 1MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,562
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Product details
Overview
AT24C11N-10SU-1.8 from Microchip Technology (formerly Atmel) is a 1 Kbit (128 × 8) serial EEPROM IC optimized for low-voltage embedded systems. It operates from 1.8 V to 5.5 V, supports 400 kHz I²C communication at 1.8 V, features 4-byte page write mode, and delivers 1 million write cycles with 100-year data retention. It is used in industrial sensor calibration storage and power-management configuration memory.
For engineers reviewing the AT24C11N-10SU-1.8 datasheet, AT24C11N-10SU-1.8 pinout, AT24C11N-10SU-1.8 application, or AT24C11N-10SU-1.8 equivalent, key selection criteria include 1.8 V minimum supply operation, SOT23-5 package footprint, I²C timing compliance at low voltage, and automotive-grade temperature range (–40°C to +85°C).
Technical Context
The AT24C11N-10SU-1.8 implements a two-wire (I²C-compatible) serial interface with open-drain SDA and edge-triggered SCL pins. It uses internal address latching and automatic page boundary handling during 4-byte page writes, with no external address pins required.
It features a dedicated TEST pin tied to GND or VCC for factory test mode entry, and three NC pins in its 5-lead SOT23 package-pin assignments differ from 8-lead variants. Standby current is specified at 0.6 µA typical (VCC = 1.8 V), enabling ultra-low-power retention in battery-backed systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1024 bits (128 words × 8 bits); sufficient for small configuration tables or calibration coefficients. |
| Supply Voltage Range | 1.8 V to 5.5 V; enables direct interfacing with 1.8 V logic domains without level shifting. |
| I²C Clock Frequency | 400 kHz max at 1.8 V; ensures reliable timing margin in low-voltage microcontroller systems. |
| Page Write Capacity | 4 bytes per page; reduces write transaction overhead versus byte-by-byte programming. |
| Write Cycle Time | 5 ms maximum; defines minimum interval between successive write commands. |
| Endurance | 1 million write cycles; supports frequent field updates in telemetry or logging applications. |
| Data Retention | 100 years at +25°C; guarantees long-term validity of stored calibration or security keys. |
Pinout & Package
AT24C11N-10SU-1.8 is supplied in a 5-lead SOT23 package (JEDEC MO-193, variation AB), measuring 2.90 mm × 1.60 mm × 1.10 mm. This compact footprint suits space-constrained PCB layouts in portable and automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | SCL | Serial clock input; edge-triggered, requires external pull-up; controls timing of all I²C transfers. |
| 2 | GND | Ground reference for VCC and signal levels; must be low-impedance to minimize noise coupling. |
| 3 | SDA | Bidirectional open-drain data line; shared across multiple I²C devices; requires external pull-up. |
| 4 | VCC | Power supply input; supports 1.8–5.5 V; decoupling capacitor (0.1 µF) recommended near pin. |
| 5 | TEST | Factory test control; must be connected to GND or VCC per application; not used in normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| 1.8 V Operation | Enables direct integration into 1.8 V SoC subsystems without voltage translation circuitry. |
| Automotive Temperature Range | Rated for –40°C to +85°C operation; qualified for under-hood and dashboard electronics. |
| Lead-Free/Halogen-Free Packaging | RoHS-compliant "U" suffix indicates green packaging meeting JEDEC J-STD-020 reflow standards. |
| Self-Timed Write Cycle | Internal timing eliminates need for host MCU to poll or delay; simplifies firmware implementation. |
| Page Write Mode | Reduces I²C bus occupancy by up to 75% vs. sequential byte writes for 4-byte data blocks. |
Applications
| Industrial Sensor Calibration | Power Management Configuration |
|---|---|
|
Use Scenario: Storing factory-trimmed offset/gain coefficients for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed once at power-up via I²C; no runtime writes required. Use Value: Eliminates external trimming components and enables field recalibration without hardware modification. |
Use Scenario: Holding dynamic voltage/frequency scaling (DVFS) profiles for DC-DC converters in embedded power supplies. IC Role / Device Role / Timing Role: I²C-accessible parameter table updated only during firmware upgrade or system commissioning. Use Value: Enables adaptive power optimization across operating conditions without redesigning PMIC firmware. |
| Automotive Body Control Module | IoT Edge Node Identity Storage |
|
Use Scenario: Retaining seat/mirror position presets and lighting configuration in vehicle body control units. IC Role / Device Role / Timing Role: Low-power EEPROM interfaced to 1.8 V microcontroller I²C peripheral; accessed infrequently. Use Value: Maintains user preferences across ignition cycles with sub-µA standby current draw. |
Use Scenario: Securing device-specific cryptographic keys and MAC addresses in battery-powered wireless sensors. IC Role / Device Role / Timing Role: Tamper-resistant nonvolatile storage for identity data; written once during manufacturing. Use Value: Provides unique, immutable device identity without requiring secure element hardware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95128-WMN6TP | 128 Kbit capacity, SPI interface, 2.5–5.5 V operation; no 1.8 V support. | Requires SPI-capable MCU; unsuitable for I²C-only designs or 1.8 V systems. | Select only if higher density and SPI interface align with host architecture and voltage rails. |
| BR24G12-5PU-1.8 | 1 Kbit I²C EEPROM, 1.7–5.5 V, SOT23-5, but rated only for commercial temp (0°C to +70°C). | Lacks automotive temperature qualification; not suitable for under-hood or extended-range deployments. | Acceptable for cost-sensitive consumer products where extended temperature is not required. |
Compared with AT24C11N-10SU-1.8, M95128-WMN6TP offers greater density but mandates SPI and excludes 1.8 V operation, while BR24G12-5PU-1.8 matches voltage and package but sacrifices automotive-grade reliability-making AT24C11N-10SU-1.8 the sole choice for robust, low-voltage, temperature-qualified I²C EEPROM use.
Availability
AT24C11N-10SU-1.8 is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive body control modules, and IoT edge node identity storage requiring stable component supply across extended temperature and low-voltage operation.
Supply support for AT24C11N-10SU-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 is a global semiconductor company specializing in microcontrollers, analog, FPGA, and memory solutions, with broad industrial and automotive qualifications.
The AT24C11N-10SU-1.8 belongs to Microchip's legacy AT24Cxx serial EEPROM family, designed specifically for low-voltage, space-constrained embedded systems needing reliable, low-power nonvolatile storage.
FAQ
What is the operating voltage range of the AT24C11N-10SU-1.8?
The AT24C11N-10SU-1.8 operates from 1.8 V to 5.5 V, supporting direct connection to 1.8 V logic families. Its 1.8 V rating is validated per the datasheet's DC characteristics table, with specified parameters including standby current (0.6 µA typ) and I²C timing (400 kHz max) at this minimum voltage. This makes AT24C11N-10SU-1.8 suitable for battery-powered and ultra-low-power applications where higher-voltage EEPROMs would require regulators or level shifters.
Which package does the AT24C11N-10SU-1.8 use, and how many pins are functional?
The AT24C11N-10SU-1.8 uses a 5-lead SOT23 package (JEDEC MO-193, variation AB). Of the five leads, four are functional: SCL, GND, SDA, and VCC; the fifth pin is TEST, used exclusively for factory testing and tied to GND or VCC in application circuits. There are no address pins-the device uses a fixed I²C slave address, eliminating external address configuration.
Does the AT24C11N-10SU-1.8 support standard I²C protocol, and what is its maximum clock speed at 1.8 V?
Yes, the AT24C11N-10SU-1.8 implements a standard two-wire I²C-compatible interface with open-drain SDA and edge-triggered SCL. At 1.8 V supply, its maximum guaranteed clock frequency is 400 kHz, as confirmed in Table 4 (AC Characteristics) of the datasheet. This ensures interoperability with common 1.8 V microcontrollers such as ARM Cortex-M0+ and RISC-V cores without timing violations.
How many write cycles can the AT24C11N-10SU-1.8 endure, and what is its data retention period?
The AT24C11N-10SU-1.8 guarantees 1 million write cycles and 100 years of data retention at +25°C, per datasheet specifications. These values are measured under standard test conditions (5.0 V, 25°C, page-mode writes) and reflect actual endurance and retention performance-not typical or estimated figures. This makes AT24C11N-10SU-1.8 appropriate for applications requiring frequent field updates over multi-year product lifecycles.
Is the AT24C11N-10SU-1.8 qualified for automotive applications?
Yes, the AT24C11N-10SU-1.8 is explicitly designated as automotive grade with an operating temperature range of –40°C to +85°C and lead-free/halogen-free ("U") packaging. The datasheet confirms automotive qualification in the Features section and Ordering Information table, where "-10SU-1.8" denotes Industrial/Automotive temperature grade and green packaging. This qualifies AT24C11N-10SU-1.8 for use in body control modules, ADAS sensors, and other automotive subsystems outside the engine compartment.
AT24C11N-10SU-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:
- 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:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C11N-10SU-1.8 FAQ
1.How can I place an order for AT24C11N-10SU-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C11N-10SU-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 AT24C11N-10SU-1.8 reliable?
The price and inventory of AT24C11N-10SU-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 AT24C11N-10SU-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C11N-10SU-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C11N-10SU-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C11N-10SU-1.8?
AT24C11N-10SU-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C11N-10SU-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 AT24C11N-10SU-1.8?
For technical support, including AT24C11N-10SU-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C11N-10SU-1.8 requirements.
6.How does Aetrix verify that AT24C11N-10SU-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C11N-10SU-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 AT24C11N-10SU-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C11N-10SU-1.8?
All AT24C11N-10SU-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C11N-10SU-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 AT24C11N-10SU-1.8 part is unused and in its original packaging.
Return procedure for AT24C11N-10SU-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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