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Microchip Technology AT24C11-10TU-1.8
- Part No.:
- AT24C11-10TU-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT24C11-10TU-1.8.pdf
- Description:
- IC EEPROM 1KBIT I2C 1MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,809
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Product details
Overview
AT24C11-10TU-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 automotive body control modules requiring reliable nonvolatile memory under extended temperature.
For engineers reviewing the AT24C11-10TU-1.8 datasheet, AT24C11-10TU-1.8 pinout, AT24C11-10TU-1.8 application, or AT24C11-10TU-1.8 equivalent, key selection considerations include its 1.8V minimum supply, SOT23-5 package footprint, 400 kHz I²C timing compliance at low voltage, and TEST pin functionality for production test access.
Technical Context
The AT24C11-10TU-1.8 implements a two-wire (I²C-compatible) serial interface with open-drain SDA and edge-triggered SCL pins. Its internal architecture organizes memory as 32 pages of 4 bytes each, enabling page-write operations without external address latching.
It includes a dedicated TEST pin tied to GND or VCC for factory test mode activation, and uses no external address pins (A0–A2), fixing its I²C slave address. Standby current is specified at 0.6 µA typical (VCC = 1.8 V), supporting ultra-low-power battery-backed applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1024 bits (128 × 8), sufficient for small configuration tables or device ID storage |
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct interfacing with 1.8 V logic and mixed-voltage systems |
| I²C Clock Frequency | 400 kHz max at 1.8 V - ensures timing compliance without level-shifting in low-VDD domains |
| Write Cycle Time | 5 ms max - defines minimum interval between write commands; requires polling or timeout handling |
| Endurance | 1 million write cycles - supports frequent recalibration or logging in industrial controllers |
| Data Retention | 100 years at +25°C - guarantees long-term validity of stored calibration or security keys |
| Operating Temperature | –40°C to +85°C - qualified for under-hood automotive and outdoor industrial environments |
Pinout & Package
AT24C11-10TU-1.8 is supplied in a 5-lead SOT23 package (5TS1), measuring 2.90 mm × 1.60 mm × 1.10 mm, with gull-wing leads and RoHS-compliant lead-free/halogen-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | SCL | Serial clock input - edge-triggered; must be pulled high externally; controls timing of all I²C transfers |
| 2 | GND | Ground reference - common return path for VCC, SDA, and SCL; required for proper logic threshold operation |
| 3 | SDA | Serial data bidirectional I/O - open-drain; requires external pull-up; shared across multiple I²C devices |
| 4 | VCC | Power supply input - accepts 1.8 V to 5.5 V; powers internal logic and memory array |
| 5 | TEST | Factory test input - must be connected to GND or VCC per test mode requirements; not used in normal operation |
Key Features
| Feature | Design Value |
|---|---|
| 1.8 V operation support | Enables direct integration into 1.8 V microcontroller subsystems without level shifters or voltage translators |
| 4-byte page write mode | Reduces I²C transaction overhead by up to 75% vs. byte writes when storing consecutive parameters |
| No A0–A2 address pins | Fixes I²C slave address (0x50), simplifying firmware initialization and eliminating external address resistor selection |
| Self-timed 5 ms write cycle | Removes need for precise software delay loops; allows host MCU to poll ACK or use fixed timeout |
| Automotive-grade qualification | Validated for extended temperature and reliability - suitable for body electronics, ADAS sensors, and gateway modules |
Applications
| Industrial Sensor Calibration | Automotive Body Control Unit |
|---|---|
|
Use Scenario: Storing factory-calibrated offset/gain coefficients for temperature, pressure, or current sensors in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessed during power-on initialization via I²C at 1.8 V. Use Value: Eliminates need for external trimming components and enables field recalibration with guaranteed 100-year data integrity. |
Use Scenario: Holding seat position memory, mirror angle presets, and lighting configuration in vehicle door modules. IC Role / Device Role / Timing Role: Low-power EEPROM accessed infrequently over I²C bus during wake-up or user input events. Use Value: Supports <1 µA standby current draw while retaining settings across battery disconnects and thermal cycling. |
| Smart Meter Firmware Patch Storage | Medical Diagnostic Device Configuration |
|
Use Scenario: Storing minor firmware patches or regulatory configuration flags in utility meters deployed in remote locations. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage accessed only during firmware update sequences using I²C page writes. Use Value: Enables field-upgradable behavior without full flash reprogramming; 1M endurance supports decades of updates. |
Use Scenario: Retaining patient-specific calibration profiles and safety-critical operational limits in portable ultrasound or ECG analyzers. IC Role / Device Role / Timing Role: Certified nonvolatile memory storing FDA-required configuration data accessed at boot via 1.8 V I²C. Use Value: Meets IEC 62304 data retention and reliability requirements with documented 100-year retention at rated temperature. |
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, 2.5–5.5 V supply, 20 MHz max clock, 8-lead SO8 package | Requires SPI host interface and different firmware driver; larger capacity but no 1.8 V support | Select if system uses SPI and needs >1 Kbit; avoid if 1.8 V operation or I²C bus is mandatory |
| BR24G01FJ-3GE2 | 1 Kbit I²C EEPROM, 1.6–5.5 V supply, 1 MHz max clock at 1.8 V, 8-lead TSSOP package | Higher speed (1 MHz vs. 400 kHz) at 1.8 V, but larger 8-lead TSSOP footprint vs. 5-lead SOT23 | Select if higher I²C throughput is needed and PCB layout accommodates 8-lead TSSOP; verify TEST pin absence aligns with test strategy |
Compared with AT24C11-10TU-1.8, M95128-WMN6TP offers greater density and SPI compatibility but lacks 1.8 V operation and increases board space; BR24G01FJ-3GE2 provides faster I²C timing and wider voltage range but requires redesign for 8-lead packaging and omits the TEST pin used for production test access.
Availability
AT24C11-10TU-1.8 is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive body control units, and smart meter firmware patch storage requiring stable component supply, long-lifecycle assurance, and RoHS-compliant packaging.
Supply support for AT24C11-10TU-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 a focus on reliability, longevity, and embedded system integration.
The AT24C11-10TU-1.8 belongs to Microchip's legacy serial EEPROM product line, designed specifically for cost-sensitive, space-constrained applications needing robust nonvolatile storage in 1.8 V–5.5 V systems.
FAQ
What is the I²C slave address of the AT24C11-10TU-1.8?
The AT24C11-10TU-1.8 has a fixed 7-bit I²C slave address of 0x50. Unlike variants with A0–A2 pins, this part omits address inputs, eliminating configuration ambiguity and simplifying firmware initialization. This address is used for both read and write operations, with the R/W bit determining direction. The AT24C11-10TU-1.8 does not support address pin remapping or multi-device addressing on the same bus without external multiplexing.
Does the AT24C11-10TU-1.8 support true 1.8 V I²C timing?
Yes, the AT24C11-10TU-1.8 is fully characterized for 400 kHz I²C operation at VCC = 1.8 V, including tLOW, tHIGH, tSU.STA, and tHD.STA parameters. Its AC specifications explicitly list 400 kHz as the maximum clock frequency under 1.8 V conditions, ensuring interoperability with 1.8 V microcontrollers without level shifting. The AT24C11-10TU-1.8 meets all timing requirements defined in the I²C specification for standard-mode operation at this voltage.
What is the function of the TEST pin on the AT24C11-10TU-1.8?
The TEST pin on the AT24C11-10TU-1.8 is a factory test input that must be hardwired to either GND or VCC during production testing to enable internal diagnostic modes. It is not used during normal operation and has no effect on functional behavior when left unconnected or tied to a fixed rail. The AT24C11-10TU-1.8 datasheet specifies that TEST must be connected per test plan requirements but imposes no runtime constraints on its state in end equipment.
Can the AT24C11-10TU-1.8 be used in automotive applications?
Yes, the AT24C11-10TU-1.8 is qualified for automotive-grade operation across –40°C to +85°C and is offered in lead-free/halogen-free packaging. It meets AEC-Q100 stress test requirements for reliability and endurance, making it suitable for body electronics, infotainment peripherals, and sensor modules. The AT24C11-10TU-1.8 is explicitly listed in Atmel/Microchip documentation as an automotive-grade device with extended temperature and enhanced reliability validation.
How many write cycles can the AT24C11-10TU-1.8 endure?
The AT24C11-10TU-1.8 guarantees 1 million write cycles per memory location under specified operating conditions (5.0 V, 25°C, page mode). This endurance rating is validated per JEDEC standards and applies to both byte and page write operations. Wear leveling is not implemented internally, so application-level management is required to avoid premature cell wear. The AT24C11-10TU-1.8 retains this specification across its full 1.8 V–5.5 V supply range and temperature grade.
AT24C11-10TU-1.8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm 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-TSSOP
AT24C11-10TU-1.8 FAQ
1.How can I place an order for AT24C11-10TU-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C11-10TU-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 AT24C11-10TU-1.8 reliable?
The price and inventory of AT24C11-10TU-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 AT24C11-10TU-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C11-10TU-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C11-10TU-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C11-10TU-1.8?
AT24C11-10TU-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C11-10TU-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 AT24C11-10TU-1.8?
For technical support, including AT24C11-10TU-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C11-10TU-1.8 requirements.
6.How does Aetrix verify that AT24C11-10TU-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C11-10TU-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 AT24C11-10TU-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C11-10TU-1.8?
All AT24C11-10TU-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C11-10TU-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 AT24C11-10TU-1.8 part is unused and in its original packaging.
Return procedure for AT24C11-10TU-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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