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Microchip Technology AT24C11-10TI-2.7
- Part No.:
- AT24C11-10TI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT24C11-10TI-2.7.pdf
- Description:
- IC EEPROM 1KBIT I2C 1MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,945
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Product details
Overview
AT24C11-10TI-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, features 4-byte page write mode, and delivers 1 million write cycles with 100-year data retention. It is used in embedded systems for parameter storage, calibration data logging, and configuration backup.
For engineers reviewing the AT24C11-10TI-2.7 datasheet, AT24C11-10TI-2.7 pinout, AT24C11-10TI-2.7 application, or AT24C11-10TI-2.7 equivalent, key selection criteria include its 2.7–5.5V supply range, TSSOP-8 packaging, 4-byte page write capability, I²C timing compliance at 1 MHz, and automotive-grade temperature support (–40°C to +85°C).
Technical Context
The AT24C11-10TI-2.7 implements a standard two-wire (I²C-compatible) serial interface with open-drain SDA and edge-triggered SCL pins. It uses internal address latching and automatic word-address incrementing during page writes, supporting both byte and sequential read modes with acknowledge polling.
Its memory array is organized as 32 pages of 4 bytes each (128 × 8 bits), with no hardware address pins (A0–A2 not present); device addressing relies solely on fixed 7-bit slave address (1010xxx). The TEST pin is functional (GND or VCC configurable), and NC pins are unconnected - all consistent across PDIP, SOIC, TSSOP, and SOT23 variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1024 bits (128 words × 8 bits), sufficient for small configuration tables or sensor calibration constants |
| Supply Voltage Range | 2.7V to 5.5V - enables direct interfacing with 3.3V and 5V microcontrollers without level shifting |
| I²C Clock Frequency | Up to 1 MHz at VCC ≥ 2.7V - supports faster firmware updates and host-side throughput vs. legacy 100 kHz EEPROMs |
| Page Write Capacity | 4 bytes per write cycle - reduces transaction overhead versus byte-write-only devices |
| Write Cycle Time | ≤5 ms max - deterministic nonvolatile write latency critical for real-time system recovery |
| Data Retention | 100 years at +25°C - ensures long-term reliability in unattended industrial deployments |
| Endurance | 1 million write cycles - supports frequent field-updatable parameters like metering logs or error counters |
| Operating Temperature | –40°C to +85°C - qualified for industrial control cabinets and automotive body electronics |
Pinout & Package
AT24C11-10TI-2.7 is supplied in an 8-lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153 compliant, with 0.65 mm lead pitch and 3.0 mm × 4.4 mm body size. Pin 1 is marked by a corner notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC | No connect - electrically isolated; must remain floating or grounded per layout guidelines |
| 2 | NC | No connect - no internal connection; PCB pad may be omitted or tied to ground for mechanical stability |
| 3 | NC | No connect - unused terminal; avoids false routing or accidental shorting in dense layouts |
| 4 | GND | Ground reference for all internal circuitry and I²C bus termination |
| 5 | VCC | Primary power supply input (2.7–5.5V); decoupling capacitor required within 10 mm |
| 6 | TEST | Test input - must be hard-wired to GND or VCC during normal operation; controls internal test modes |
| 7 | SCL | Serial clock input - edge-triggered; requires external pull-up resistor (typically 2.2–10 kΩ) |
| 8 | SDA | Open-drain bidirectional data line - shared across I²C bus; requires external pull-up resistor |
Key Features
| Feature | Design Value |
|---|---|
| Two-wire serial interface | Fully compatible with standard I²C protocol - enables reuse of existing MCU I²C peripherals and driver stacks |
| 4-byte page write mode | Reduces total I²C transactions by up to 75% vs. byte writes - lowers bus occupancy and host CPU load |
| Self-timed 5 ms write cycle | Eliminates need for host polling delay loops - simplifies firmware and improves determinism |
| 1 million write endurance | Supports daily reconfiguration over 27+ years - suitable for field-serviceable industrial equipment |
| Automotive-grade qualification | Meets extended temperature and reliability requirements for under-hood and chassis-mounted modules |
| Lead-free/halogen-free packaging | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level MSL3 |
Applications
| Industrial PLC Configuration Storage | Smart Meter Calibration Data |
|---|---|
Use Scenario: Storing I/O mapping, scaling factors, and alarm thresholds in programmable logic controllers deployed in factory automation. IC Role / Device Role / Timing Role: Nonvolatile configuration register - retains settings across power cycles and firmware updates. Use Value: Enables plug-and-play module replacement without manual reprogramming; leverages 100-year data retention for maintenance-free operation. | Use Scenario: Recording factory-trimmed ADC offset/gain coefficients and tariff tables in electricity/water meters certified to ANSI C12.20 or IEC 62056. IC Role / Device Role / Timing Role: Calibration memory - accessed once at boot and written only during metrology calibration. Use Value: Guarantees measurement accuracy traceability; 1M endurance exceeds lifetime write requirements of Class 0.2 meters. |
| Automotive Body Control Module | Medical Infusion Pump Settings |
Use Scenario: Saving user preferences (mirror position, seat memory, lighting profiles) and fault history in 12V automotive BCMs operating at –40°C to +85°C. IC Role / Device Role / Timing Role: Parameter EEPROM - interfaces directly to 3.3V CAN/LIN microcontroller via I²C with no level shifters. Use Value: Qualified for automotive temp range and vibration; 2.7–5.5V operation tolerates battery transients down to 6V cold-crank. | Use Scenario: Storing drug library limits, delivery rate profiles, and operator audit logs in FDA-cleared infusion pumps requiring data integrity verification. IC Role / Device Role / Timing Role: Secure configuration store - contents validated at startup using CRC checksums stored alongside data. Use Value: 100-year retention ensures calibration validity over device lifetime; page write minimizes EEPROM access time during safety-critical startup checks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95128-DRMN6TP/K | 128 Kbit SPI interface, 5V tolerant, 20 MHz max clock; no I²C compatibility | Requires SPI-capable host; unsuitable for I²C-bus-constrained designs | Select only if host lacks I²C or requires higher density and faster write throughput |
| 24LC11-I/P | Same 1K-bit I²C architecture, PDIP-8 package, identical 2.7–5.5V range and timing | Through-hole mounting; larger footprint and incompatible with automated SMT lines using TSSOP feeders | Choose for prototyping or legacy through-hole assemblies where board space and reflow compatibility are secondary |
Compared with M95128-DRMN6TP/K and 24LC11-I/P, AT24C11-10TI-2.7 uniquely combines TSSOP-8 surface-mount compatibility, guaranteed 1 MHz I²C speed at 2.7V, and automotive-grade qualification - making it optimal for space-constrained industrial and automotive control modules requiring robust, high-speed serial configuration storage.
Availability
AT24C11-10TI-2.7 is available at Aetrix Electronics and suitable for industrial PLCs, smart utility meters, and automotive body control modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for AT24C11-10TI-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, FPGA, and memory solutions, with a focus on embedded control and connectivity.
The AT24C11 belongs to Microchip's legacy serial EEPROM product line, designed specifically for cost-sensitive, low-power industrial and automotive applications requiring reliable nonvolatile storage with minimal pin count and board area.
FAQ
What is the exact memory organization of the AT24C11-10TI-2.7?
The AT24C11-10TI-2.7 contains 1024 bits of EEPROM memory, internally organized as 128 words of 8 bits each (128 × 8). This equates to 32 pages of 4 bytes each. The device uses a 7-bit word address for random access, and no external address pins (A0–A2) are present - the slave address is fixed at 1010xxx in I²C transactions.
Does the AT24C11-10TI-2.7 support standard I²C addressing and timing?
Yes, the AT24C11-10TI-2.7 supports standard two-wire I²C protocol with fixed 7-bit slave address (1010xxx). It complies with I²C timing specifications: 400 kHz maximum at 1.8V and 1 MHz maximum at 2.7V, 2.5V, or 5V supply. SDA is open-drain and SCL is edge-triggered, requiring external pull-up resistors per I²C bus design rules.
What is the function of the TEST pin on the AT24C11-10TI-2.7?
The TEST pin on the AT24C11-10TI-2.7 is a functional test input that must be hard-wired to either GND or VCC during normal operation. It controls internal test modes and is not used for standard read/write operations. Leaving it floating may cause undefined behavior or failure to respond on the I²C bus.
Can the AT24C11-10TI-2.7 be used in automotive applications?
Yes, the AT24C11-10TI-2.7 is explicitly qualified for automotive-grade use with an operating temperature range of –40°C to +85°C and compliance with lead-free/halogen-free standards. Its 2.7–5.5V supply range accommodates automotive battery transients, and its 1 million write endurance supports long-life vehicle subsystems such as body control modules and dashboard instrumentation.
How does page write mode improve efficiency in the AT24C11-10TI-2.7?
Page write mode allows the AT24C11-10TI-2.7 to accept up to 4 bytes in a single I²C transaction before initiating the internal 5 ms write cycle. This reduces bus traffic and host CPU overhead compared to byte-by-byte writes - for example, storing a 4-byte calibration vector requires one start/stop sequence instead of four, cutting I²C protocol overhead by ~75%.
AT24C11-10TI-2.7 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:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
AT24C11-10TI-2.7 FAQ
1.How can I place an order for AT24C11-10TI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C11-10TI-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 AT24C11-10TI-2.7 reliable?
The price and inventory of AT24C11-10TI-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 AT24C11-10TI-2.7 is usually 5 days.
3.What payment methods are accepted for AT24C11-10TI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C11-10TI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C11-10TI-2.7?
AT24C11-10TI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C11-10TI-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 AT24C11-10TI-2.7?
For technical support, including AT24C11-10TI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C11-10TI-2.7 requirements.
6.How does Aetrix verify that AT24C11-10TI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT24C11-10TI-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 AT24C11-10TI-2.7 meets industry standards.
7.What is the process for return or replacement of AT24C11-10TI-2.7?
All AT24C11-10TI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C11-10TI-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 AT24C11-10TI-2.7 part is unused and in its original packaging.
Return procedure for AT24C11-10TI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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