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Microchip Technology AT24C16AN-10SU-2.7
- Part No.:
- AT24C16AN-10SU-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C16AN-10SU-2.7.pdf
- Description:
- IC EEPROM 16KBIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,095
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Product details
Overview
AT24C16AN-10SU-2.7 from Microchip Technology is a 16-Kbit (2048 × 8) two-wire serial EEPROM optimized for low-voltage industrial applications. It operates from 2.7V to 5.5V, supports 400 kHz I²C bus speed, features hardware write protection via the WP pin, and delivers 1 million write cycles with 100-year data retention in an 8-lead JEDEC SOIC package.
For engineers reviewing the AT24C16AN-10SU-2.7 datasheet, AT24C16AN-10SU-2.7 pinout, AT24C16AN-10SU-2.7 application, or AT24C16AN-10SU-2.7 equivalent, this page provides verified electrical specifications, validated SOIC-8 pin mapping, confirmed 16K memory architecture, and real-world use cases in embedded system configuration storage and sensor calibration data logging.
Technical Context
The AT24C16AN-10SU-2.7 implements a standard I²C-compatible two-wire interface with open-drain SDA and edge-triggered SCL, supporting bidirectional data transfer and acknowledge polling during internal write cycles. Its memory is organized into 128 pages of 16 bytes each, requiring an 11-bit word address for random access.
Unlike smaller family members, the AT24C16A disables A0–A2 device addressing pins (NC), limiting bus topology to one device per I²C segment. Write protection is implemented via a dedicated WP pin that disables all writes when pulled high, independent of software control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8 bits), enabling storage of firmware identifiers, calibration coefficients, or device configuration tables |
| Supply Voltage Range | 2.7V to 5.5V - compatible with 3.3V and 5V logic systems without level shifting |
| I²C Clock Frequency | Up to 400 kHz at VCC ≥ 2.7V - supports fast parameter updates in real-time embedded control loops |
| Write Cycle Time | Max 5 ms - defines minimum interval between successive byte/page writes; impacts firmware update latency |
| Endurance & Retention | 1 million write cycles / 100 years data retention - suitable for field-deployed devices requiring long-term reliability |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade operation in harsh ambient environments |
| Package | 8-lead JEDEC SOIC (8S1) - industry-standard footprint with 1.27 mm pitch, compatible with automated PCB assembly |
Pinout & Package
AT24C16AN-10SU-2.7 is housed in an 8-lead JEDEC SOIC (8S1) package measuring 4.90 mm × 3.90 mm × 1.75 mm (L × W × H), with gull-wing leads and RoHS-compliant green finish ("U" suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | No Connect (NC) | Internally unused; must be tied to GND or left floating per design - no device addressing function |
| A1 | No Connect (NC) | Internally unused; no effect on memory mapping or I²C address - not required for routing |
| A2 | No Connect (NC) | Internally unused; eliminates need for external pull-up/down resistors on address lines |
| GND | Ground Reference | Primary return path for VCC and I/O signals; requires low-impedance connection to system ground plane |
| VCC | Power Supply | 2.7V–5.5V supply input; decoupling capacitor (0.1 µF ceramic) required within 10 mm of pin |
| WP | Write Protect Control | Hardware-enforced write disable when high; enables fail-safe configuration locking during power-up or fault conditions |
| SCL | Serial Clock Input | Positive-edge clock for I²C transactions; requires external pull-up resistor (typically 2.2–10 kΩ) |
| SDA | Serial Data I/O | Open-drain bidirectional bus line; shared across multiple I²C devices with single pull-up resistor |
Key Features
| Feature | Design Value |
|---|---|
| 16-byte page write mode | Enables burst programming of up to 16 bytes per transaction, reducing I²C overhead by 62% vs. byte-by-byte writes |
| Schmitt-trigger inputs with noise filtering | Rejects sub-100 ns glitches on SCL/SDA, eliminating false start/stop detection in electrically noisy industrial enclosures |
| Self-timed internal write cycle | Automatically manages erase/write timing; frees host MCU from polling delays or fixed wait states |
| Dedicated hardware write protect (WP) | Prevents accidental overwrites during firmware updates or brown-out conditions without software intervention |
| 11-bit addressing capability | Supports full 2048-word linear addressing space, enabling direct access to any location without bank switching |
Applications
| Industrial Sensor Calibration Storage | Embedded System Configuration Memory |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients for temperature, pressure, and humidity sensors in HVAC controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter repository accessed at power-on reset via I²C; retains values across 10+ year product lifecycle. Use Value: Eliminates need for external calibration EEPROM or microcontroller flash wear management; supports field recalibration without firmware reflash. | Use Scenario: Holding user-defined settings (network IP, display brightness, alarm thresholds) in medical infusion pumps. IC Role / Device Role / Timing Role: Dedicated configuration store isolated from main MCU flash; accessed only during boot or menu navigation. Use Value: Prevents corruption of critical settings during unexpected power loss; enables secure write-protection via WP pin during normal operation. |
| Smart Meter Firmware Parameter Tables | Automotive Body Control Module NVM |
Use Scenario: Storing tariff schedules, metering constants, and tamper-event logs in ANSI C12.22-compliant electricity meters. IC Role / Device Role / Timing Role: High-reliability data logger interfaced to metrology SoC via I²C; withstands 1000+ daily read/write cycles over 20 years. Use Value: Meets ANSI 10-year data retention requirement with margin; 1M endurance exceeds typical smart meter lifetime write count. | Use Scenario: Saving seat position memory, mirror presets, and lighting profiles in automotive BCMs operating at –40°C to +85°C. IC Role / Device Role / Timing Role: Automotive-qualified nonvolatile memory directly connected to 3.3V CAN/LIN gateway MCU. Use Value: Qualified for extended temperature range; SOIC package supports standard reflow profiles and AOI inspection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C16B-SSHM-T | Successor device with enhanced ESD rating (4 kV HBM), same 16K capacity, SOIC-8, 2.5–5.5V operation | Recommended for new designs requiring higher robustness in electrostatic-prone manufacturing or field service environments | Select when long-term supply continuity and improved latch-up immunity are prioritized over legacy part compatibility |
| BR24G16NUX-10 | Rohm 16K I²C EEPROM, 1.7–5.5V, 1 MHz max clock, 8-lead USON (2×3 mm), no WP pin | Lacks hardware write protection; uses smaller USON package - unsuitable where WP functionality or SOIC footprint is mandatory | Choose only if board space is constrained and software-based write control suffices |
Compared with AT24C16AN-10SU-2.7, the AT24C16B offers superior ESD resilience and updated qualification, while BR24G16NUX-10 trades WP functionality and SOIC compatibility for ultra-compact packaging - making the original part optimal for industrial designs needing proven reliability and hardware lockout.
Availability
AT24C16AN-10SU-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration storage, embedded system configuration memory, and smart meter firmware parameter tables requiring stable component supply across multi-year production cycles.
Supply support for AT24C16AN-10SU-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 leading provider of microcontrollers, analog components, and memory solutions, with a focus on embedded control and connectivity.
The AT24CxxA family was designed specifically for cost-sensitive, low-power industrial and commercial systems requiring reliable, standardized I²C EEPROM storage with minimal board area and design complexity.
FAQ
What is the maximum I²C clock frequency supported by AT24C16AN-10SU-2.7?
The AT24C16AN-10SU-2.7 supports up to 400 kHz I²C clock frequency when operated at VCC ≥ 2.7V. At lower voltages (e.g., 1.8V), the maximum rated speed drops to 100 kHz - but the -2.7 suffix confirms this unit is specified for 2.7–5.5V operation and full 400 kHz compliance. This enables faster parameter loading in time-critical embedded boot sequences.
Does AT24C16AN-10SU-2.7 require external pull-up resistors on SDA and SCL lines?
Yes, AT24C16AN-10SU-2.7 requires external pull-up resistors on both SDA and SCL lines because its I²C interface uses open-drain outputs. Typical values range from 2.2 kΩ to 10 kΩ depending on bus capacitance and speed requirements. The AT24C16AN-10SU-2.7 datasheet specifies 400 kHz timing margins assuming ≤ 400 pF total bus capacitance with appropriate pull-ups.
Can AT24C16AN-10SU-2.7 be used in place of AT24C16A-10PU-2.7?
Yes, AT24C16AN-10SU-2.7 is functionally identical to AT24C16A-10PU-2.7 in memory size, timing, and electrical specs - differing only in package (SOIC-8 vs. PDIP-8) and RoHS compliance ("U" suffix). Both share the same 2.7–5.5V operation, 400 kHz speed, and 16K organization. No firmware or schematic changes are needed beyond adapting the footprint.
What happens to the AT24C16AN-10SU-2.7 when the WP pin is left unconnected?
When the WP pin of AT24C16AN-10SU-2.7 is left unconnected (floating), its internal weak pull-down ensures it defaults to logic low, enabling normal read/write operations. However, Microchip recommends tying WP to GND explicitly for deterministic behavior - especially in noisy environments where floating inputs could cause intermittent write blocking or spurious protection activation.
Is AT24C16AN-10SU-2.7 suitable for automotive applications?
No, AT24C16AN-10SU-2.7 is rated for industrial temperature range (–40°C to +85°C) and is not AEC-Q100 qualified. For automotive body control or infotainment modules, Microchip recommends the automotive-grade AT24C16C variant or newer AT24C16B-AU series, which undergo extended reliability testing and offer tighter parametric guarantees under temperature cycling and vibration stress.
AT24C16AN-10SU-2.7 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:
- 16Kbit
- Memory Organization:
- 2K x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 4.5 µs
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C16AN-10SU-2.7 FAQ
1.How can I place an order for AT24C16AN-10SU-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C16AN-10SU-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 AT24C16AN-10SU-2.7 reliable?
The price and inventory of AT24C16AN-10SU-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 AT24C16AN-10SU-2.7 is usually 5 days.
3.What payment methods are accepted for AT24C16AN-10SU-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C16AN-10SU-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C16AN-10SU-2.7?
AT24C16AN-10SU-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C16AN-10SU-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 AT24C16AN-10SU-2.7?
For technical support, including AT24C16AN-10SU-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C16AN-10SU-2.7 requirements.
6.How does Aetrix verify that AT24C16AN-10SU-2.7 is sourced from the original manufacturer or authorized distributors?
All AT24C16AN-10SU-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 AT24C16AN-10SU-2.7 meets industry standards.
7.What is the process for return or replacement of AT24C16AN-10SU-2.7?
All AT24C16AN-10SU-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C16AN-10SU-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 AT24C16AN-10SU-2.7 part is unused and in its original packaging.
Return procedure for AT24C16AN-10SU-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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