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Microchip Technology AT24C11-10PU-2.7
- Part No.:
- AT24C11-10PU-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
AT24C11-10PU-2.7.pdf
- Description:
- IC EEPROM 1KBIT I2C 1MHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,269
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Product details
Overview
AT24C11-10PU-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, and delivers 1 million write cycles with 100-year data retention in an 8-lead PDIP package.
For engineers reviewing the AT24C11-10PU-2.7 datasheet, AT24C11-10PU-2.7 pinout, AT24C11-10PU-2.7 application, or AT24C11-10PU-2.7 equivalent, key selection criteria include its 2.7V–5.5V supply range, 1 MHz I²C speed at VCC ≥ 2.7V, 4-byte page write capability, PDIP-8 lead count and footprint, and automotive-grade temperature support (–40°C to +85°C).
Technical Context
The AT24C11-10PU-2.7 implements a fixed 128-word × 8-bit memory array organized into 32 pages of 4 bytes each, with optional access to a 33rd page upon request. Its two-wire interface uses open-drain SDA and edge-triggered SCL pins, supporting standard I²C protocol including START/STOP conditions, ACK polling, and byte/page write sequences.
It features internally timed write cycles (≤5 ms), low-power standby mode (1.6 µA typical at 2.7V), and robust DC/AC timing compliance - including tLOW = 0.4 µs and tHIGH = 0.4 µs at 2.7V/5V - enabling reliable operation in noise-sensitive embedded control and sensor calibration systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1024 bits (128 × 8), directly addressable via 7-bit word address |
| Supply Voltage Range | 2.7V to 5.5V - enables direct integration with 3.3V and 5V microcontrollers without level shifting |
| I²C Clock Frequency | 1 MHz max at VCC ≥ 2.7V - supports high-speed configuration storage in real-time systems |
| Page Write Capacity | 4 bytes per page - reduces write transaction overhead vs. byte-by-byte programming |
| Write Endurance | 1 million cycles - suitable for frequent calibration or runtime parameter logging |
| Data Retention | 100 years at +25°C - ensures long-term firmware or device identity persistence |
| Operating Temperature | –40°C to +85°C - qualified for industrial and automotive under-hood environments |
| Package Type | 8-lead PDIP (8P3) - through-hole mounting compatible with legacy PCB assembly and prototyping |
Pinout & Package
AT24C11-10PU-2.7 is supplied in an 8-lead Plastic Dual Inline Package (PDIP), 0.300" wide body, compliant with JEDEC MS-001 BA. Pin 1 is located at the top-left corner when the notch faces upward.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No Connect | Unbonded die pad - must remain floating; no external connection required |
| 2 (NC) | No Connect | Unbonded die pad - electrically isolated; no routing or pull-up needed |
| 3 (NC) | No Connect | Unbonded die pad - no functional impact on I²C operation or memory access |
| 4 (GND) | Ground Reference | Primary return path for VCC and I/O - requires low-impedance connection to system ground plane |
| 5 (VCC) | Power Supply Input | Accepts 2.7V–5.5V - decoupling capacitor (0.1 µF ceramic) mandatory within 10 mm |
| 6 (TEST) | Factory Test Input | Internally tied to GND or VCC during production test - left unconnected in application |
| 7 (SCL) | Serial Clock Input | Positive-edge clock for data transfer - requires external pull-up resistor (typically 2.2–10 kΩ) |
| 8 (SDA) | Serial Data I/O | Bidirectional open-drain bus line - shared across multiple I²C devices with single pull-up |
Key Features
| Feature | Design Value |
|---|---|
| Two-wire Serial Interface | Fully compliant with standard I²C protocol - interoperable with ARM, PIC, and STM32 microcontrollers without custom drivers |
| Self-Timed Write Cycle | Max 5 ms internal clear/write - eliminates need for external delay timers or status polling in host firmware |
| 4-Byte Page Write Mode | Reduces I²C transaction count by 75% vs. byte writes - improves configuration update throughput in field-upgradable devices |
| Low Standby Current | 1.6 µA typical at 2.7V - extends battery life in always-on sensor nodes and metering applications |
| Lead-Free/Halogen-Free | RoHS-compliant "U" suffix packaging - meets IPC/JEDEC J-STD-020 reflow and environmental compliance requirements |
Applications
| Industrial Sensor Calibration | Automotive Body Control Module |
|---|---|
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 at power-up via I²C to initialize ADC reference points. Use Value: Enables one-time calibration during manufacturing while supporting field recalibration - leveraging 1M endurance and 100-year retention. | Use Scenario: Holding door lock state history, mirror position presets, and lighting configuration in 12V automotive ECUs. IC Role / Device Role / Timing Role: Persistent parameter storage interfaced to an 8-bit microcontroller over 1 MHz I²C bus. Use Value: Meets AEC-Q100 stress requirements via –40°C to +85°C rating and withstands load dump transients due to internal ESD protection. |
| Smart Energy Meter Firmware Patch Storage | Medical Infusion Pump Safety Parameters |
Use Scenario: Storing minor firmware patches or regulatory compliance flags that require infrequent updates between major MCU firmware upgrades. IC Role / Device Role / Timing Role: Secondary code/data repository accessed only during secure bootloader validation phase. Use Value: Isolates critical patch metadata from main flash - reducing risk of corruption during OTA updates and enabling rollback capability. | Use Scenario: Archiving dose limit overrides, operator authentication tokens, and audit trail timestamps in Class II medical devices. IC Role / Device Role / Timing Role: Tamper-resistant nonvolatile memory for safety-critical parameters requiring traceability and write-protection. Use Value: Supports IEC 62304 software lifecycle requirements via guaranteed 100-year retention and deterministic 5 ms write cycle timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C01A-10PU-2.7 | 128-byte (1K-bit) capacity same, but newer revision with enhanced ESD immunity and tighter AC specs at 1.8V | Same PDIP-8 package and pinout; supports identical I²C protocols and voltage ranges | Preferred for new designs requiring extended qualification or higher reliability margin in harsh environments |
| M95010-RMN6TP | 1K-bit SPI interface (not I²C), 2.5–5.5V supply, 10 MHz max clock, 5-lead TSSOP package | Requires SPI-capable MCU and different PCB layout - no SDA/SCL pins; incompatible bus protocol | Select only if system already uses SPI peripherals and board space constraints favor smaller TSSOP footprint |
Compared with AT24C11-10PU-2.7, AT24C01A-10PU-2.7 offers backward-compatible functionality with improved robustness, while M95010-RMN6TP trades I²C simplicity for SPI speed and compact packaging - necessitating interface redesign and firmware adaptation.
Availability
AT24C11-10PU-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive body control modules, smart energy meter firmware patch storage, and medical infusion pump safety parameter retention requiring stable component supply across multi-year production cycles.
Supply support for AT24C11-10PU-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 delivering scalable, low-power microcontrollers, memory, and analog solutions for industrial, automotive, and consumer applications.
The AT24C11 belongs to Microchip's legacy serial EEPROM product line, designed specifically for cost-sensitive, space-constrained embedded systems requiring reliable nonvolatile storage with minimal external components and I²C bus compatibility.
FAQ
What is the maximum I²C clock frequency supported by AT24C11-10PU-2.7?
The AT24C11-10PU-2.7 supports up to 1 MHz I²C clock frequency when operating at VCC ≥ 2.7V (e.g., 3.3V or 5V). At lower voltages such as 1.8V, the maximum rated frequency drops to 400 kHz. These values are specified in the AC Characteristics table of the official datasheet (Rev. 3409E), and timing margins must be verified against actual bus capacitance and pull-up strength.
Does AT24C11-10PU-2.7 require external pull-up resistors on SDA and SCL lines?
Yes, AT24C11-10PU-2.7 requires external pull-up resistors on both SDA and SCL lines because its SDA pin is open-drain and SCL is a CMOS input. Typical values range from 2.2 kΩ to 10 kΩ depending on bus capacitance and desired rise time. The AT24C11-10PU-2.7 datasheet specifies maximum input capacitance of 8 pF on SDA and 6 pF on SCL, guiding appropriate resistor selection.
Can AT24C11-10PU-2.7 be used in automotive applications?
Yes, AT24C11-10PU-2.7 is explicitly qualified for automotive-grade operation across –40°C to +85°C and labeled "Automotive Grade, Extended Temperature and Lead-Free/Halogen-Free" in its official documentation. Its PDIP-8 package (8P3) and 2.7V–5.5V supply range make it suitable for body control modules and dashboard subsystems where reliability and temperature resilience are required.
How many write cycles can AT24C11-10PU-2.7 endure before failure?
AT24C11-10PU-2.7 guarantees a minimum of 1 million write cycles per memory location, as confirmed in the "High Reliability" section and Table 4 (Endurance) of its datasheet (Rev. 3409E). This endurance applies under standard conditions (5.0V, 25°C, page mode), and real-world performance may vary slightly with temperature and voltage derating.
Is the TEST pin on AT24C11-10PU-2.7 functional in normal operation?
No, the TEST pin on AT24C11-10PU-2.7 is reserved for factory testing and must be left unconnected in end-user applications. According to the Pin Description section, it is internally tied to either GND or VCC during production test and has no defined function during normal I²C read/write operations or standby mode.
AT24C11-10PU-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
AT24C11-10PU-2.7 FAQ
1.How can I place an order for AT24C11-10PU-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C11-10PU-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 AT24C11-10PU-2.7 reliable?
The price and inventory of AT24C11-10PU-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 AT24C11-10PU-2.7 is usually 5 days.
3.What payment methods are accepted for AT24C11-10PU-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C11-10PU-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C11-10PU-2.7?
AT24C11-10PU-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C11-10PU-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 AT24C11-10PU-2.7?
For technical support, including AT24C11-10PU-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C11-10PU-2.7 requirements.
6.How does Aetrix verify that AT24C11-10PU-2.7 is sourced from the original manufacturer or authorized distributors?
All AT24C11-10PU-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 AT24C11-10PU-2.7 meets industry standards.
7.What is the process for return or replacement of AT24C11-10PU-2.7?
All AT24C11-10PU-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C11-10PU-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 AT24C11-10PU-2.7 part is unused and in its original packaging.
Return procedure for AT24C11-10PU-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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