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Microchip Technology AT24C16AN-10SI-2.7
- Part No.:
- AT24C16AN-10SI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C16AN-10SI-2.7.pdf
- Description:
- IC EEPROM 16KBIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,616
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Product details
Overview
AT24C16AN-10SI-2.7 from Microchip Technology (formerly Atmel) is a 16-kbit I²C-compatible serial EEPROM with 2048 × 8-bit organization, 2.7V to 5.5V supply range, 400 kHz max clock rate at 2.7V, and 128-page × 16-byte write architecture. It serves as nonvolatile configuration storage in microcontroller-based industrial control modules requiring robust data retention and hardware write protection.
For engineers reviewing the AT24C16AN-10SI-2.7 datasheet, AT24C16AN-10SI-2.7 pinout, AT24C16AN-10SI-2.7 application, or AT24C16AN-10SI-2.7 equivalent, key selection criteria include its single-bus device addressing (A0–A2 NC), WP-enabled hardware lock, 5 ms max self-timed write cycle, and automotive-grade SOIC-8 packaging compatible with industrial temperature operation (−40°C to +85°C).
Technical Context
The AT24C16AN-10SI-2.7 implements a two-wire I²C interface with open-drain SDA/SCL pins, Schmitt-triggered inputs for noise immunity, and bi-directional data transfer protocol compliant with standard I²C timing. Its internal address counter supports current-address, random-address, and sequential read modes.
Unlike smaller family members, the AT24C16AN-10SI-2.7 omits A0–A2 device address pins-limiting bus placement to one device per I²C segment-and uses an 11-bit word address for 2048-word addressing. Write protection is enforced via the WP pin tied to VCC, locking full 16K array writes while permitting reads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8 bits), enabling storage of firmware calibration tables or system configuration parameters in space-constrained designs. |
| Supply Voltage | 2.7V to 5.5V - supports direct integration into 3.3V and 5V logic domains without level-shifting. |
| I²C Clock Rate | 400 kHz at 2.7V - enables fast page writes (up to 16 bytes) and reduces host MCU overhead during bulk updates. |
| Write Cycle Time | 5 ms maximum - defines minimum interval between write commands; impacts real-time logging latency. |
| Endurance | 1 million write cycles - ensures reliable field operation over 10+ years in moderate-update applications like metering or sensor calibration. |
| Data Retention | 100 years at +25°C - guarantees long-term integrity of stored settings without battery backup. |
| Operating Temp | −40°C to +85°C - qualified for industrial environments including factory automation and outdoor telemetry nodes. |
Pinout & Package
AT24C16AN-10SI-2.7 is housed in an 8-lead JEDEC SOIC package (8S1), 0.150" wide, with gull-wing leads and RoHS-compliant lead-free/halogen-free construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | No-connect (NC) | Not bonded internally; must be left unconnected - eliminates external address resistor networks and simplifies PCB layout. |
| GND | Ground reference | Common return path for VCC and I/O; requires low-impedance connection to minimize noise coupling into SDA/SCL lines. |
| VCC | Power supply input | Accepts 2.7V–5.5V; decoupling capacitor (0.1 µF ceramic) required within 10 mm for stable I²C communication. |
| WP | Hardware write protect | Logic-high (VCC) disables all writes to entire 16K array; grounded for normal read/write - prevents accidental firmware corruption during power-up transients. |
| SCL | Serial clock input | Positive-edge sampled clock; requires external pull-up (typically 2.2–10 kΩ) to VCC; rise/fall time ≤1 µs at 400 kHz. |
| SDA | Serial data bidirectional I/O | Open-drain output; shared across multiple I²C devices; same pull-up as SCL; supports multi-master arbitration. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Write Protection | WP pin disables writes to full 16K array when high - eliminates software-only vulnerabilities in safety-critical systems. |
| Page Write Capability | 16-byte page writes reduce I²C transaction count by up to 94% vs. byte writes - critical for minimizing bus occupancy in real-time control loops. |
| Noise-Immune Inputs | Schmitt-triggered SCL/SDA with 100 ns noise suppression - maintains reliable operation in electrically noisy industrial enclosures. |
| Low-Power Standby | 4.0 µA max standby current at 2.7V - extends battery life in portable diagnostic tools or wireless sensor nodes. |
| Extended Temperature Range | Rated −40°C to +85°C - validated for deployment in uncontrolled ambient environments such as HVAC controllers or solar inverters. |
Applications
| Industrial PLC Configuration Storage | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Storing calibrated sensor offsets, I/O mapping, and user-defined logic states in programmable logic controllers deployed in manufacturing lines. IC Role / Device Role / Timing Role: Nonvolatile configuration register bank accessed via I²C during boot and runtime reconfiguration. Use Value: Enables field-upgradable logic without firmware reflashing; WP pin prevents unintended changes during EMI-heavy motor startup sequences. |
Use Scenario: Holding door lock actuator profiles, mirror position memory, and lighting dimming curves in 12V automotive BCMs. IC Role / Device Role / Timing Role: Persistent parameter store interfaced to 8-bit MCU over I²C; accessed during ignition-on initialization. Use Value: Survives vehicle battery disconnects; 100-year retention ensures lifetime calibration integrity without service intervention. |
| Medical Infusion Pump Calibration | Smart Energy Meter Firmware Patch Storage |
|
Use Scenario: Securing drug delivery rate tables and alarm thresholds in Class II medical devices subject to IEC 62304 compliance. IC Role / Device Role / Timing Role: Tamper-resistant configuration vault; WP pin hardwired to VCC during production to lock clinical parameters. Use Value: Meets FDA design control requirements for immutable calibration data; 1M endurance supports >1000 recalibrations over product lifecycle. |
Use Scenario: Storing delta patches for firmware updates in ANSI C12.22-compliant smart meters operating on lithium-thionyl chloride batteries. IC Role / Device Role / Timing Role: Low-power update staging area; accessed only during scheduled OTA windows to minimize active time. Use Value: 4.0 µA standby current extends 10-year battery life; page writes minimize voltage sag during patch application. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics M24C16-WMN6TP | Same 16K size, 2.5–5.5V range, but rated only to +85°C (not extended temp); WP pin functional but lacks A0–A2 NC confirmation in datasheet. | Not qualified for extended-temp industrial use; suitable for commercial-grade consumer electronics where cost is primary. | Select if operating temperature stays below +85°C and RoHS-6 compliance is sufficient without halogen-free requirement. |
| ON Semiconductor CAT24C16WI-GT3 | Identical 16K/2048×8 organization, 2.5–5.5V, 400 kHz, and SOIC-8 package; WP pin behavior matches; endurance rated at 1M cycles. | Validated for −40°C to +125°C operation - exceeds AT24C16AN-10SI-2.7's +85°C rating; preferred for under-hood automotive use. | Choose when extended temperature support beyond +85°C is required, especially in engine bay or powertrain subsystems. |
Compared with AT24C16AN-10SI-2.7, M24C16-WMN6TP offers lower cost but reduced thermal qualification, while CAT24C16WI-GT3 provides broader temperature coverage at comparable price - making it ideal for harsh-environment upgrades without layout change.
Availability
AT24C16AN-10SI-2.7 is available at Aetrix Electronics and suitable for industrial control systems, automotive body electronics, medical device calibration storage, and smart metering applications requiring stable component supply across multi-year production cycles.
Supply support for AT24C16AN-10SI-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 manufacturer specializing in microcontrollers, analog, FPGA, and memory solutions, with a focus on reliability and long-term product availability.
The AT24C16AN-10SI-2.7 belongs to Microchip's AT24CxxA serial EEPROM product line, designed specifically for robust, low-power, I²C-based nonvolatile data storage in industrial, automotive, and medical systems.
FAQ
What is the function of the A0, A1, and A2 pins on the AT24C16AN-10SI-2.7?
The A0, A1, and A2 pins on the AT24C16AN-10SI-2.7 are no-connect (NC) terminals - they are not bonded internally and must remain unconnected. This design eliminates device address conflicts on the I²C bus, restricting the bus to a single AT24C16AN-10SI-2.7 instance, which simplifies system-level addressing logic and avoids arbitration errors in fixed-function applications.
Does the AT24C16AN-10SI-2.7 support 1.8V operation?
No, the AT24C16AN-10SI-2.7 is explicitly rated for 2.7V to 5.5V operation only. The "-2.7" suffix denotes its low-voltage variant within the 2.7V range; 1.8V-compatible versions carry the "-1.8" suffix (e.g., AT24C16AN-10SI-1.8). Using AT24C16AN-10SI-2.7 below 2.7V may result in unreliable I²C communication or failed write cycles.
How does the Write Protect (WP) pin behave on the AT24C16AN-10SI-2.7?
On the AT24C16AN-10SI-2.7, the WP pin enables full-array hardware write protection when pulled high to VCC - blocking all write operations to the entire 16K memory while allowing unrestricted reads. When grounded, normal read/write functionality resumes. This behavior is confirmed in the device's WP Pin Status table and applies exclusively to the AT24C16A variant.
What is the maximum I²C clock frequency supported by the AT24C16AN-10SI-2.7 at 2.7V?
The AT24C16AN-10SI-2.7 supports a maximum I²C clock frequency of 400 kHz when operated at 2.7V, as specified in the AC Characteristics table. This rate is validated across the full industrial temperature range (−40°C to +85°C) and enables efficient 16-byte page writes with minimal host MCU intervention.
Is the AT24C16AN-10SI-2.7 qualified for automotive applications?
The AT24C16AN-10SI-2.7 is automotive-grade qualified per its "N" suffix and extended temperature option documentation, supporting operation from −40°C to +85°C. While not AEC-Q100 certified out-of-box, its construction, testing, and qualification align with automotive subsystem requirements for body electronics and infotainment - verification per AEC-Q100 remains customer-responsible.
AT24C16AN-10SI-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-10SI-2.7 FAQ
1.How can I place an order for AT24C16AN-10SI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C16AN-10SI-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-10SI-2.7 reliable?
The price and inventory of AT24C16AN-10SI-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-10SI-2.7 is usually 5 days.
3.What payment methods are accepted for AT24C16AN-10SI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C16AN-10SI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C16AN-10SI-2.7?
AT24C16AN-10SI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C16AN-10SI-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-10SI-2.7?
For technical support, including AT24C16AN-10SI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C16AN-10SI-2.7 requirements.
6.How does Aetrix verify that AT24C16AN-10SI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT24C16AN-10SI-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-10SI-2.7 meets industry standards.
7.What is the process for return or replacement of AT24C16AN-10SI-2.7?
All AT24C16AN-10SI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C16AN-10SI-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-10SI-2.7 part is unused and in its original packaging.
Return procedure for AT24C16AN-10SI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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