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Microchip Technology AT24C11N-10SI-1.8
- Part No.:
- AT24C11N-10SI-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C11N-10SI-1.8.pdf
- Description:
- IC EEPROM 1KBIT I2C 1MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,821
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Product details
Overview
AT24C11N-10SI-1.8 from Microchip Technology (formerly Atmel) is a 1K-bit (128 × 8) two-wire serial EEPROM optimized for low-voltage embedded systems. It operates from 1.8V to 5.5V, supports 400 kHz I²C communication at 1.8V, features 4-byte page write mode, self-timed 5 ms max write cycle, and is housed in an 8-lead JEDEC SOIC package. It serves as nonvolatile configuration storage in industrial controllers and sensor nodes.
For engineers reviewing the AT24C11N-10SI-1.8 datasheet, AT24C11N-10SI-1.8 pinout, AT24C11N-10SI-1.8 application, or AT24C11N-10SI-1.8 equivalent, key selection criteria include 1.8V minimum supply operation, 400 kHz I²C timing compliance at low voltage, 1 million write endurance, 100-year data retention, and industrial temperature range (–40°C to +85°C).
Technical Context
The AT24C11N-10SI-1.8 implements a fixed 7-bit I²C device address with no hardware address pins (A0–A2 not present), uses open-drain SDA/SCL interface compatible with standard I²C bus protocols, and supports both byte and 4-byte page write modes. Its memory is organized into 32 pages of 4 bytes each, with internal address incrementing during page writes.
It enters low-power standby mode after STOP condition receipt or power-up, draws only 0.6 µA typical standby current at 1.8V, and features built-in write protection via internal logic - no external WP pin. The TEST pin must be tied to GND or VCC per application; NC pins are unconnected and electrically isolated.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1024 bits (128 words × 8 bits), sufficient for small firmware config tables or calibration data |
| Supply Voltage Range | 1.8V to 5.5V - enables direct interfacing with 1.8V logic and mixed-voltage systems |
| I²C Clock Frequency | 400 kHz max at 1.8V - ensures reliable timing margin in low-power microcontroller designs |
| Page Write Capacity | 4 bytes per page - reduces I²C transaction overhead vs. byte-by-byte writes |
| Write Endurance | 1 million cycles - supports frequent recalibration or logging in field-deployed equipment |
| Data Retention | 100 years at +25°C - guarantees long-term integrity of stored parameters without refresh |
| Operating Temperature | –40°C to +85°C - qualified for industrial control, automotive body electronics, and outdoor sensors |
Pinout & Package
AT24C11N-10SI-1.8 is supplied in an 8-lead JEDEC SOIC (8S1) package, 0.150" wide, with gull-wing leads and RoHS-compliant green finish (U-suffix implied by "N" in part number per ordering table). Pin 1 is marked by a notch or beveled corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No Connect | Internally unconnected; must remain floating or grounded per layout best practice |
| 2 (NC) | No Connect | Internally unconnected; no electrical function or routing required |
| 3 (NC) | No Connect | Internally unconnected; no signal or power role |
| 4 (GND) | Ground Reference | System return path for I²C signals and internal circuitry; requires low-impedance connection |
| 5 (VCC) | Power Supply | 1.8V–5.5V input; decoupling capacitor (0.1 µF) recommended within 5 mm |
| 6 (TEST) | Test Input | Must be hard-wired to GND or VCC; not used in normal operation |
| 7 (SCL) | Serial Clock Input | Positive-edge clock for data in, negative-edge for data out; requires external pull-up |
| 8 (SDA) | Serial Data I/O | Bidirectional open-drain line; shared across I²C bus; requires external pull-up |
Key Features
| Feature | Design Value |
|---|---|
| 1.8V Operation Support | Enables direct integration with ultra-low-power MCUs (e.g., ARM Cortex-M0+) without level-shifting |
| 4-Byte Page Write Mode | Reduces I²C bus occupancy by up to 75% vs. four separate byte writes, improving system responsiveness |
| Self-Timed Write Cycle | Eliminates need for external write-complete polling delay; host can proceed after STOP condition |
| 1 Million Write Cycles | Supports daily reconfiguration over 27+ years - suitable for field-upgradable industrial firmware |
| Industrial Temperature Range | Validated operation from –40°C to +85°C ensures reliability in uncontrolled environments like factory floors |
Applications
| Smart Sensor Calibration | Industrial PLC Configuration Storage |
|---|---|
Use Scenario: A temperature sensor module stores factory-calibrated offset/gain coefficients and user-adjusted linearization parameters. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessed at power-on reset via I²C; no real-time timing constraints. Use Value: Preserves accuracy across power cycles and field recalibrations without battery backup or external NVRAM. | Use Scenario: Programmable Logic Controller retains I/O mapping, alarm thresholds, and communication settings across firmware updates and brownouts. IC Role / Device Role / Timing Role: Persistent configuration register bank; read once at boot, written infrequently during commissioning or maintenance. Use Value: Enables zero-downtime reconfiguration and eliminates manual dip-switch setup on legacy hardware. |
| Medical Device Settings Backup | Automotive Body Control Module |
Use Scenario: Portable blood glucose meter saves user preferences, last-measured values, and calibration history between sessions. IC Role / Device Role / Timing Role: Low-power data logger element; writes occur only on user action or measurement commit. Use Value: Meets IEC 62304 Class B software requirements for persistent state retention without volatile RAM backup. | Use Scenario: Door module stores mirror position memory, seat preset configurations, and lighting profiles linked to key fob IDs. IC Role / Device Role / Timing Role: Dedicated configuration EEPROM interfaced directly to 1.8V CAN/LIN microcontroller subsystem. Use Value: Supports ASIL-B relevant functionality with verified 100-year data retention and automotive-grade qualification. |
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 SPI interface, 5 MHz max clock, 2.5–5.5V supply - no 1.8V support | Requires SPI host interface; incompatible with I²C-only systems | Select only if host lacks I²C or requires higher density; not drop-in for AT24C11N-10SI-1.8 |
| BR24G01NUX-10 | 1 Kbit I²C EEPROM, 1.6–5.5V, 400 kHz @ 1.7V, 8-lead USON package - different footprint | Same functional spec but 2.0 × 2.5 mm USON vs. 3.9 × 4.9 mm SOIC; requires PCB redesign | Choose for space-constrained designs where miniaturization outweighs layout change cost |
Compared with M95128-WMN6TP and BR24G01NUX-10, the AT24C11N-10SI-1.8 uniquely delivers guaranteed 400 kHz I²C operation at 1.8V in a standard SOIC-8 footprint - making it optimal for retrofitting legacy 1.8V industrial boards without interface or layout changes.
Availability
AT24C11N-10SI-1.8 is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, and automotive body electronics requiring stable component supply, long-lifecycle assurance, and RoHS-compliant sourcing.
Supply support for AT24C11N-10SI-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 devices, and memory solutions, with emphasis on reliability, longevity, and industrial-grade qualification.
The AT24C11N-10SI-1.8 belongs to Microchip's legacy AT24Cxx serial EEPROM product line, designed specifically for robust, low-voltage, I²C-based nonvolatile storage in cost-sensitive and space-constrained embedded systems.
FAQ
What is the minimum operating voltage for AT24C11N-10SI-1.8?
The AT24C11N-10SI-1.8 is rated for operation down to 1.8V, with full 400 kHz I²C timing compliance at that voltage. Its specified supply range is 1.8V to 5.5V, and it draws only 0.6 µA typical standby current at 1.8V - making it suitable for battery-powered or energy-harvesting applications where rail voltage may sag near 1.8V.
Does AT24C11N-10SI-1.8 support standard I²C addressing?
Yes, AT24C11N-10SI-1.8 uses a fixed 7-bit I²C device address of 1010xxx (0x50–0x57), with no external address pins (A0–A2). All three address bits are internally hardwired, so only one AT24C11N-10SI-1.8 can reside on a given I²C bus unless multiplexed. This simplifies design but limits multi-device topology without an I²C switch.
What is the purpose of the TEST pin on AT24C11N-10SI-1.8?
The TEST pin on AT24C11N-10SI-1.8 must be externally tied to either GND or VCC - it is not left floating. Per the datasheet, this pin is used during factory test and has no functional role in normal operation. Leaving it unconnected risks undefined behavior; grounding is the most common and recommended practice for industrial designs.
Can AT24C11N-10SI-1.8 perform sequential reads across page boundaries?
Yes, AT24C11N-10SI-1.8 supports sequential reads that automatically roll over across page boundaries. After receiving an ACK to any byte, the internal address counter increments regardless of page alignment, allowing uninterrupted streaming of up to 128 bytes. This avoids manual address management in firmware and simplifies bulk data retrieval from the full 128-word array.
Is AT24C11N-10SI-1.8 qualified for automotive applications?
AT24C11N-10SI-1.8 is specified for industrial temperature range (–40°C to +85°C) and offered in lead-free/halogen-free packaging, but it is not AEC-Q100 qualified. While widely used in automotive body electronics (e.g., mirror/seat modules), formal automotive qualification requires the AEC-Q100–graded AT24C11-10TI-1.8 variant - which shares identical electrical specs but undergoes additional stress testing and lot-level traceability.
AT24C11N-10SI-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-10SI-1.8 FAQ
1.How can I place an order for AT24C11N-10SI-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C11N-10SI-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-10SI-1.8 reliable?
The price and inventory of AT24C11N-10SI-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-10SI-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C11N-10SI-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C11N-10SI-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C11N-10SI-1.8?
AT24C11N-10SI-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C11N-10SI-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-10SI-1.8?
For technical support, including AT24C11N-10SI-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C11N-10SI-1.8 requirements.
6.How does Aetrix verify that AT24C11N-10SI-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C11N-10SI-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-10SI-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C11N-10SI-1.8?
All AT24C11N-10SI-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C11N-10SI-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-10SI-1.8 part is unused and in its original packaging.
Return procedure for AT24C11N-10SI-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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