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Microchip Technology AT24C16-10PI-1.8
- Part No.:
- AT24C16-10PI-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
AT24C16-10PI-1.8.pdf
- Description:
- IC EEPROM 16KBIT I2C 400KHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,192
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Product details
Overview
AT24C16-10PI-1.8 from Microchip Technology (formerly Atmel) is a 16-kbit serial EEPROM IC organized as 2048 × 8 bits, supporting 1.8V to 5.5V supply operation with 100 kHz I²C bus speed at 1.8V, Schmitt-triggered noise-immune inputs, and hardware write protection via the WP pin. It is used for nonvolatile parameter storage in industrial control modules, sensor calibration data retention, and firmware configuration backup.
For engineers reviewing the AT24C16-10PI-1.8 datasheet, AT24C16-10PI-1.8 pinout, AT24C16-10PI-1.8 application, or AT24C16-10PI-1.8 equivalent, key selection considerations include 1.8V low-voltage compatibility, 128-page × 16-byte page write architecture, -40°C to +85°C industrial temperature range, 1 million write cycles endurance, and PDIP-8 packaging with no-connect address pins (A0–A2).
Technical Context
The AT24C16-10PI-1.8 implements a standard two-wire I²C interface with open-drain SDA/SCL pins, supports bi-directional data transfer with ACK polling, and uses internal address auto-increment during sequential reads. Its memory is partitioned into 128 pages of 16 bytes each, requiring an 11-bit word address for random access.
Unlike smaller family members, the AT24C16 omits device addressing via A0–A2 pins-these are NC-limiting bus topology to one device per I²C segment. Write protection is implemented exclusively through the WP pin, which disables all writes when pulled high to VCC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8 bits), sufficient for storing >2 KB of persistent configuration or calibration data. |
| Supply Voltage Range | 1.8V to 5.5V - enables direct interfacing with 1.8V logic systems without level shifting. |
| I²C Clock Frequency | 100 kHz at 1.8V - ensures reliable timing margin under low-voltage conditions. |
| Page Write Size | 16-byte pages - reduces write transaction overhead versus byte-write-only devices. |
| Endurance & Retention | 1 million write cycles / 100 years data retention - suitable for field-updatable systems with infrequent but critical writes. |
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade embedded applications without derating. |
| Write Protect Function | Hardware-enabled via WP pin - prevents accidental overwrites during power transitions or firmware glitches. |
Pinout & Package
AT24C16-10PI-1.8 is supplied in an 8-lead PDIP (Plastic Dual Inline Package), 0.300" wide body, with 0.100" lead pitch. Pin 1 is marked by a notch or dot; package meets JEDEC MS-001 BA standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | No Connect (NC) | Not used for device addressing - eliminates external pull-up/down resistors and simplifies PCB layout. |
| SDA | Serial Data I/O | Open-drain bidirectional line; requires external pull-up resistor; supports multi-master I²C bus sharing. |
| SCL | Serial Clock Input | Positive-edge sampled clock; controls timing of all read/write transfers; tolerant of slow rise/fall times. |
| WP | Write Protect Input | Active-high enable: tied to VCC to lock memory; tied to GND for normal read/write operation. |
| GND | Ground Reference | Primary return path for VCC current and I²C signal reference; must be low-impedance for noise immunity. |
| VCC | Power Supply | Single-supply input supporting 1.8V–5.5V; decoupling capacitor (0.1 µF) required near pin for stable operation. |
Key Features
| Feature | Design Value |
|---|---|
| Low-voltage operation down to 1.8V | Enables integration into battery-powered or energy-harvesting systems without voltage translation circuitry. |
| Schmitt-trigger, filtered inputs | Rejects fast transients and EMI on SDA/SCL lines, improving robustness in electrically noisy industrial environments. |
| Self-timed write cycle (≤5 ms) | Eliminates need for host MCU to poll status registers or manage timing delays between writes. |
| 16-byte page write capability | Reduces I²C transaction count by up to 16× versus byte writes, lowering bus utilization and firmware complexity. |
| Industrial temperature grade (-40°C to +85°C) | Validated performance across full range - no derating needed for thermal design in enclosed enclosures. |
Applications
| Industrial Sensor Node | Programmable Logic Controller (PLC) |
|---|---|
Use Scenario: Storing calibrated offset/gain coefficients and sensor ID in a wireless temperature/humidity node operating from coin cell. IC Role / Device Role / Timing Role: Nonvolatile configuration storage with infrequent writes and frequent reads; retains data during sleep mode. Use Value: Enables field recalibration without firmware update; leverages 1.8V operation to extend battery life. |
Use Scenario: Holding user-defined I/O mapping tables and alarm thresholds in a DIN-rail mounted PLC module. IC Role / Device Role / Timing Role: Persistent parameter store accessed during boot and runtime; survives power loss and brownout events. Use Value: Ensures deterministic startup behavior and avoids factory reprogramming after maintenance. |
| Medical Diagnostic Handheld | Smart Energy Meter |
Use Scenario: Saving last-measured vital sign history and user preferences in a portable ECG monitor with USB charging. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage for clinical data; WP pin prevents corruption during hot-plug USB events. Use Value: Meets IEC 62304 data integrity requirements; 1M endurance supports >10 years of daily use. |
Use Scenario: Recording tariff schedules, meter calibration constants, and tamper-event logs in a Class 0.5S electricity meter. IC Role / Device Role / Timing Role: High-reliability nonvolatile memory for regulatory-critical parameters; operates continuously at elevated ambient temperatures. Use Value: 100-year data retention satisfies utility billing archive mandates; PDIP package aids manual rework in production. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C16A-10PI-1.8 | Successor part with enhanced ESD rating (4 kV HBM), same pinout and electrical specs; recommended for new designs. | Identical functional use case; preferred where long-term product continuity and improved robustness are required. | Select AT24C16A-10PI-1.8 for new designs; AT24C16-10PI-1.8 remains valid for legacy repair or drop-in replacement. |
| M24C16-WMN6TP | STMicroelectronics 16K I²C EEPROM; 1.7–5.5V range, 400 kHz @ 2.5V+, different AC timing and WP behavior (active-low). | Requires minor firmware adaptation for WP polarity and timing margins; suitable for cost-sensitive volume production. | Choose M24C16-WMN6TP only after validating timing compliance and WP logic inversion in target system. |
Compared with AT24C16A-10PI-1.8 and M24C16-WMN6TP, the AT24C16-10PI-1.8 offers proven industrial reliability and full backward compatibility with legacy Atmel-based designs, though it lacks the enhanced ESD rating of the A-suffix variant and requires careful attention to WP polarity when substituting with ST's offering.
Availability
AT24C16-10PI-1.8 is available at Aetrix Electronics and suitable for industrial sensor nodes, programmable logic controllers, medical handheld diagnostics, and smart energy meters requiring stable component supply across extended lifecycle commitments.
Supply support for AT24C16-10PI-1.8 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, with broad industrial and automotive qualification coverage.
The AT24C16-10PI-1.8 belongs to Microchip's legacy AT24Cxx serial EEPROM product line, designed specifically for low-power, low-voltage embedded systems requiring robust, pin-compatible nonvolatile storage with minimal external components.
FAQ
What is the maximum I²C clock frequency supported by AT24C16-10PI-1.8 at 1.8V?
The AT24C16-10PI-1.8 supports up to 100 kHz I²C clock frequency when operated at 1.8V. This is explicitly specified in the AC Characteristics table under "1.8-volt" column for fSCL. Higher speeds (e.g., 400 kHz) require VCC ≥ 2.5V and are not guaranteed at 1.8V operation.
Are the A0, A1, and A2 pins functional on AT24C16-10PI-1.8?
No - the A0, A1, and A2 pins are No Connect (NC) on AT24C16-10PI-1.8. As confirmed in the Pin Description section, the AT24C16 uses all three bits for memory page addressing internally, so these pins serve no device-addressing purpose and must remain unconnected in the schematic and layout.
Does AT24C16-10PI-1.8 support partial page writes?
Yes, AT24C16-10PI-1.8 supports partial page writes. The device allows writing any number of bytes (1–16) within a single 16-byte page boundary without requiring full-page alignment. Bytes beyond the page boundary wrap to the start of the same page, as documented in the Page Write section.
What is the write cycle time for AT24C16-10PI-1.8, and how is it managed?
The maximum write cycle time for AT24C16-10PI-1.8 is 5 ms, as specified in the AC Characteristics table under tWR. This is a self-timed internal operation - the host controller must wait for completion before initiating the next command, typically using ACK polling or fixed delay.
Is AT24C16-10PI-1.8 suitable for automotive applications?
No - AT24C16-10PI-1.8 is rated for industrial temperature range (-40°C to +85°C) and is not AEC-Q100 qualified. While the datasheet notes "Automotive Grade" availability for *some* variants in the family, this specific part number (AT24C16-10PI-1.8) is explicitly listed under Industrial Operation Range in the Ordering Information table on page 17.
AT24C16-10PI-1.8 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:
- 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:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
AT24C16-10PI-1.8 FAQ
1.How can I place an order for AT24C16-10PI-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C16-10PI-1.8 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 AT24C16-10PI-1.8 reliable?
The price and inventory of AT24C16-10PI-1.8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT24C16-10PI-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C16-10PI-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C16-10PI-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C16-10PI-1.8?
AT24C16-10PI-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C16-10PI-1.8 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 AT24C16-10PI-1.8?
For technical support, including AT24C16-10PI-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C16-10PI-1.8 requirements.
6.How does Aetrix verify that AT24C16-10PI-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C16-10PI-1.8 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 AT24C16-10PI-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C16-10PI-1.8?
All AT24C16-10PI-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C16-10PI-1.8, 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 AT24C16-10PI-1.8 part is unused and in its original packaging.
Return procedure for AT24C16-10PI-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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