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Microchip Technology AT24C16A-10TU-2.7
- Part No.:
- AT24C16A-10TU-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT24C16A-10TU-2.7.pdf
- Description:
- IC EEPROM 16KBIT I2C 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,188
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Product details
Overview
AT24C16A-10TU-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 at 2.7V+, features hardware write protection via WP pin, and delivers 1 million write cycles with 100-year data retention. It is used in embedded system configuration storage, sensor calibration data logging, and power-management parameter backup.
For engineers reviewing the AT24C16A-10TU-2.7 datasheet, AT24C16A-10TU-2.7 pinout, AT24C16A-10TU-2.7 application, or AT24C16A-10TU-2.7 equivalent, key selection criteria include its 2.7–5.5V supply range, 16-byte page write capability, TSSOP-8 package compatibility, and absence of device address pins (A0–A2 are NC), simplifying single-device I²C bus design.
Technical Context
The AT24C16A-10TU-2.7 implements a standard two-wire (I²C-compatible) interface with open-drain SDA/SCL pins, Schmitt-trigger inputs, and noise-filtered logic. Its internal architecture organizes memory as 128 pages of 16 bytes each, requiring an 11-bit word address for random access.
Write protection is enforced exclusively by the WP pin: tied to VCC, it disables all writes across the full 16K array; tied to GND, full read/write operation is enabled. The device enters low-power standby mode after STOP condition receipt and supports acknowledge polling to detect write cycle completion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 kbit (2048 × 8 bits), sufficient for storing firmware revision IDs, calibration coefficients, or device-specific settings in compact systems. |
| Supply Voltage Range | 2.7V to 5.5V - compatible with 3.3V and 5V logic domains without level shifting. |
| I²C Clock Frequency | Up to 400 kHz at ≥2.7V - enables fast configuration updates while maintaining robustness on noisy industrial buses. |
| Page Write Size | 16-byte pages - reduces write transaction overhead versus byte-write, improving efficiency during bulk parameter updates. |
| Endurance & Retention | 1 million write cycles / 100-year data retention - ensures long-term reliability in infrequently updated but mission-critical storage roles. |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded environments including automotive body control modules. |
| Write Protect Function | Hardware-enabled via WP pin - eliminates software vulnerability by physically disabling writes when WP = VCC. |
Pinout & Package
AT24C16A-10TU-2.7 is supplied in an 8-lead Thin Shrink Small Outline Package (TSSOP), 4.4 mm body width, RoHS-compliant and green-packaged ("U" suffix). Pin 1 is marked with a dot or notch; package footprint matches JEDEC MO-153 variation AA.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | No Connect (NC) | Internally unused; must be grounded or left floating per design - no device addressing function. |
| A1 | No Connect (NC) | Internally unused; grounding recommended for noise immunity and PCB layout consistency. |
| A2 | No Connect (NC) | Internally unused; grounding recommended - eliminates ambiguity in multi-device bus planning. |
| GND | Ground Reference | Primary return path for VCC and I/O; requires low-impedance connection to system ground plane. |
| VCC | Power Supply | 2.7–5.5V input; decoupling capacitor (0.1 µF ceramic) required within 5 mm of pin. |
| WP | Write Protect Input | Active-high enable: VCC = full write protection; GND = normal read/write - direct tie to system rail or GPIO. |
| SCL | Serial Clock Input | Open-drain, Schmitt-triggered clock line - requires external pull-up resistor (typically 2.2–10 kΩ). |
| SDA | Serial Data I/O | Open-drain bidirectional data line - shares same pull-up as SCL; supports multi-master arbitration. |
Key Features
| Feature | Design Value |
|---|---|
| 16-byte page write mode | Reduces I²C transaction count by up to 15× vs. byte writes - critical for minimizing bus occupancy in real-time systems. |
| Schmitt-trigger, filtered inputs | Rejects sub-50 ns noise spikes - improves immunity in electrically harsh environments like motor drives or power supplies. |
| No device address pins (A0–A2 = NC) | Eliminates external address wiring and conflict risk - simplifies single-device integration and reduces BOM count. |
| Self-timed write cycle (≤5 ms) | Removes need for software delay loops or status polling before next command - streamlines firmware implementation. |
| 11-bit word addressing | Supports full 2048-word linear addressing space - enables direct mapping of structured data tables without bank switching. |
Applications
| Industrial Sensor Node | Smart Metering Module |
|---|---|
Use Scenario: Storing calibrated offset/gain values and temperature compensation coefficients for analog sensor front-ends. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding factory-trimmed parameters accessed at power-up. Use Value: Enables plug-and-play sensor replacement without field recalibration; leverages 100-year retention for lifetime accuracy. |
Use Scenario: Recording tariff schedules, billing cycle counters, and tamper-event logs in electricity/water meters. IC Role / Device Role / Timing Role: Secure, low-power event logger with hardware write protection against unauthorized parameter changes. Use Value: WP pin tied to secure microcontroller GPIO prevents runtime corruption; 1M endurance supports daily log entries for >2700 years. |
| Automotive Body Control Unit | IoT Edge Gateway |
Use Scenario: Saving user preferences (mirror position, seat settings) and diagnostic trouble code history across ignition cycles. IC Role / Device Role / Timing Role: Persistent memory node on vehicle's low-speed I²C bus, operating across –40°C to +85°C ambient. Use Value: Qualified industrial temp range ensures reliability under hood conditions; TSSOP-8 footprint fits space-constrained BCM PCBs. |
Use Scenario: Caching network credentials, firmware update staging metadata, and local policy rules during offline operation. IC Role / Device Role / Timing Role: Local configuration vault accessible via host MCU's I²C peripheral without external voltage translation. Use Value: 2.7–5.5V operation matches common 3.3V gateway rails; 400 kHz speed enables rapid credential reload after reboot. |
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 generation; identical 16K capacity, 2.5–5.5V supply, enhanced ESD rating (4 kV HBM), and improved tWR consistency. | Recommended for new designs per Microchip documentation; supports same TSSOP-8 footprint and pinout. | Select AT24C16B-SSHM-T when designing for long-term availability and higher robustness in high-noise environments. |
| BR24G16NUX-10 | Rohm 16K I²C EEPROM; 1.7–5.5V supply, 1 MHz max clock, 16-byte page, AEC-Q200 qualified for automotive use. | Offers broader voltage range and automotive qualification; pinout differs (SOP-8 vs. TSSOP-8), requiring layout change. | Choose BR24G16NUX-10 only if AEC-Q200 compliance or sub-2.5V operation is mandatory - not drop-in compatible. |
Compared with AT24C16A-10TU-2.7, AT24C16B-SSHM-T provides extended lifecycle support and tighter parametric control, while BR24G16NUX-10 trades pin compatibility for automotive qualification and wider voltage tolerance - both require validation for timing and noise immunity in target systems.
Availability
AT24C16A-10TU-2.7 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart metering modules, and automotive body control units requiring stable component supply, long-term data integrity, and RoHS-compliant packaging.
Supply support for AT24C16A-10TU-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 devices, and nonvolatile memory solutions for industrial, automotive, and consumer markets.
The AT24CxxA family was designed to deliver cost-effective, low-power serial EEPROMs for configuration and calibration storage in resource-constrained embedded systems - with emphasis on I²C simplicity, wide voltage operation, and field-proven reliability.
FAQ
What is the maximum I²C clock frequency supported by AT24C16A-10TU-2.7?
The AT24C16A-10TU-2.7 supports up to 400 kHz I²C clock frequency when operated at 2.7V or higher. At 1.8V (not applicable to this -2.7 variant), the maximum is 100 kHz. This 400 kHz capability enables faster configuration writes compared to legacy 100 kHz EEPROMs, reducing boot-time latency in systems using AT24C16A-10TU-2.7 for parameter loading.
Are the A0, A1, and A2 pins functional on AT24C16A-10TU-2.7?
No - on AT24C16A-10TU-2.7, the A0, A1, and A2 pins are designated No Connect (NC) and serve no device-addressing function. They may be grounded or left unconnected per PCB layout requirements. This distinguishes AT24C16A-10TU-2.7 from smaller variants (e.g., AT24C02) and simplifies single-device I²C bus implementation where AT24C16A-10TU-2.7 is the sole EEPROM.
How does the Write Protect (WP) pin operate on AT24C16A-10TU-2.7?
On AT24C16A-10TU-2.7, the WP pin enables hardware-level write protection: when pulled to VCC, all write operations (byte and page) to the entire 16K array are disabled; when pulled to GND, full read/write functionality is restored. This behavior is implemented entirely in silicon - no firmware interaction is needed, making AT24C16A-10TU-2.7 suitable for safety-critical or tamper-resistant applications.
What package type is used for AT24C16A-10TU-2.7?
AT24C16A-10TU-2.7 uses an 8-lead Thin Shrink Small Outline Package (TSSOP), identified by the "TU" suffix and conforming to JEDEC MO-153 variation AA. Its 4.4 mm body width and 0.65 mm lead pitch provide a compact, surface-mount solution with thermal and mechanical performance suitable for industrial PCB assemblies - distinct from SOIC (SU) or PDIP (PU) variants of the same device.
Is AT24C16A-10TU-2.7 suitable for automotive applications?
AT24C16A-10TU-2.7 is rated for industrial temperature (–40°C to +85°C) and is used in automotive body control modules, but it is not AEC-Q200 qualified. For production automotive applications requiring formal qualification, Microchip recommends migrating to the AT24C16B or automotive-grade alternatives like BR24G16NUX-10. AT24C16A-10TU-2.7 remains appropriate for prototyping, aftermarket modules, or non-safety-critical vehicle subsystems.
AT24C16A-10TU-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:
- 16Kbit
- Memory Organization:
- 2K x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 900 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
AT24C16A-10TU-2.7 FAQ
1.How can I place an order for AT24C16A-10TU-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C16A-10TU-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 AT24C16A-10TU-2.7 reliable?
The price and inventory of AT24C16A-10TU-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 AT24C16A-10TU-2.7 is usually 5 days.
3.What payment methods are accepted for AT24C16A-10TU-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C16A-10TU-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C16A-10TU-2.7?
AT24C16A-10TU-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C16A-10TU-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 AT24C16A-10TU-2.7?
For technical support, including AT24C16A-10TU-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C16A-10TU-2.7 requirements.
6.How does Aetrix verify that AT24C16A-10TU-2.7 is sourced from the original manufacturer or authorized distributors?
All AT24C16A-10TU-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 AT24C16A-10TU-2.7 meets industry standards.
7.What is the process for return or replacement of AT24C16A-10TU-2.7?
All AT24C16A-10TU-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C16A-10TU-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 AT24C16A-10TU-2.7 part is unused and in its original packaging.
Return procedure for AT24C16A-10TU-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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