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Microchip Technology AT24C16-10PC-1.8
- Part No.:
- AT24C16-10PC-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
AT24C16-10PC-1.8.pdf
- Description:
- IC EEPROM 16KBIT I2C 400KHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,384
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Product details
Overview
AT24C16-10PC-1.8 from Microchip Technology (formerly Atmel) is a 16-kbit (2048 × 8) I²C-compatible serial EEPROM optimized for ultra-low-voltage embedded systems. It operates from 1.8 V to 5.5 V, supports 100 kHz I²C bus speed at 1.8 V, features hardware write protection via WP pin, and delivers 1 million write cycles with 100-year data retention - used in battery-powered sensor nodes and portable medical devices.
For engineers reviewing the AT24C16-10PC-1.8 datasheet, AT24C16-10PC-1.8 pinout, AT24C16-10PC-1.8 application, or AT24C16-10PC-1.8 equivalent, key selection criteria include 1.8 V minimum supply compatibility, 16-byte page write capability, NC status of A0–A2 pins, SOIC-8 package footprint, and industrial-grade standby current (3 µA at 1.8 V).
Technical Context
The AT24C16-10PC-1.8 implements a two-wire I²C interface with Schmitt-triggered, noise-filtered SDA/SCL inputs and open-drain bidirectional data transfer. Its internal architecture organizes memory as 128 pages of 16 bytes each, requiring an 11-bit word address for random access.
Unlike smaller family members, the AT24C16 disables device addressing: A0, A1, and A2 are no-connect pins, limiting bus topology to one AT24C16 per I²C segment. Write protection is enforced exclusively through the WP pin tied to VCC/GND - no software lock mechanism is present.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8 bits), organized as 128 pages × 16 bytes - enables efficient firmware parameter storage without external address latching |
| Supply Voltage Range | 1.8 V to 5.5 V - supports direct interfacing with 1.8 V logic domains and mixed-voltage systems |
| I²C Clock Frequency | 100 kHz maximum at 1.8 V - ensures reliable timing margin in low-power microcontroller designs |
| Write Cycle Time | 10 ms max - defines minimum interval between successive byte/page writes; impacts real-time logging latency |
| Standby Current | 3 µA at VCC = 1.8 V - critical for multi-year battery life in always-on IoT endpoints |
| Endurance & Retention | 1 million write cycles / 100 years data retention - qualifies for long-life industrial calibration storage |
| Package | 8-lead JEDEC SOIC (8S1), 0.150" wide - industry-standard footprint compatible with automated PCB assembly |
Pinout & Package
AT24C16-10PC-1.8 uses an 8-lead JEDEC SOIC package (8S1). All device address pins (A0, A1, A2) are no-connect; only SDA, SCL, WP, VCC, and GND are functional.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A0) | No Connect | Not bonded; must be left floating or tied to GND/VCC - no effect on operation |
| 2 (A1) | No Connect | Not bonded; no routing required on PCB |
| 3 (A2) | No Connect | Eliminates need for external address resistors - simplifies single-device I²C design |
| 4 (GND) | Ground Reference | Return path for all internal circuitry; must connect to system ground plane |
| 5 (VCC) | Power Supply | 1.8–5.5 V input; decoupling capacitor (0.1 µF) required within 10 mm |
| 6 (WP) | Hardware Write Protect | High = full-array write disable; low = normal read/write - enables field-safe configuration locking |
| 7 (SCL) | Serial Clock Input | Positive-edge clock for I²C transactions; requires external pull-up resistor (typically 4.7 kΩ) |
| 8 (SDA) | Serial Data I/O | Open-drain bidirectional line; shared across I²C bus; requires same pull-up as SCL |
Key Features
| Feature | Design Value |
|---|---|
| 1.8 V Operation | Guaranteed functionality down to 1.8 V supply - eliminates level-shifting for modern ultra-low-power MCUs |
| 16-Byte Page Write | Enables burst programming of configuration blocks with single I²C transaction - reduces bus overhead by 94% vs. byte writes |
| WP Pin Hardware Lock | Prevents accidental overwrites during power transients or firmware faults - no software dependency required |
| Schmitt-Trigger Inputs | Rejects >100 ns noise pulses on SDA/SCL - improves robustness in electrically noisy industrial enclosures |
| 100-Year Data Retention | Validated at 85°C - ensures calibration data integrity across product lifetime without refresh cycles |
Applications
| Smart Energy Metering | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Storing tariff schedules, meter calibration constants, and tamper-event logs in utility-grade electricity meters. IC Role / Device Role / Timing Role: Nonvolatile parameter storage with guaranteed write integrity during brown-out conditions. Use Value: WP pin prevents corruption during grid voltage sags; 1.8 V operation enables direct connection to metering SoC's low-voltage domain. |
Use Scenario: Holding module identification, channel scaling factors, and diagnostic history in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Configuration EEPROM accessed during cold start and runtime reconfiguration. Use Value: 100-year retention ensures factory calibration remains valid across 15+ year deployments; SOIC-8 allows high-density board layout. |
| Portable Medical Sensors | Automotive Body Control Units |
Use Scenario: Recording patient-specific settings, sensor calibration offsets, and usage counters in handheld glucose monitors and pulse oximeters. IC Role / Device Role / Timing Role: Low-power persistent memory for safety-critical configuration data. Use Value: 3 µA standby current extends coin-cell battery life beyond 5 years; 1.8 V compatibility matches sensor front-end ASIC voltage rails. |
Use Scenario: Storing seat position memory, mirror presets, and lighting profiles in automotive body control modules. IC Role / Device Role / Timing Role: Automotive-grade nonvolatile storage for user preferences and adaptive settings. Use Value: Qualified for extended temperature range (−40°C to +85°C); WP pin prevents unintended writes during ECU reset sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C16-10PI-1.8 | Same electrical specs but rated for −40°C to +85°C industrial temperature range; identical SOIC-8 package | Required for under-hood or factory-floor environments where ambient exceeds 70°C | Select when operating temperature exceeds commercial grade limits; no PCB changes needed |
| M24C16-RMN6TP | STMicroelectronics 16 Kbit I²C EEPROM; supports 1 MHz at 2.5–5.5 V but only 400 kHz at 1.8 V; 1.7–5.5 V range | Higher-speed option for systems with 3.3 V or 5 V I²C buses; not drop-in for 1.8 V–100 kHz constrained designs | Choose if bus speed >100 kHz is required and supply ≥2.5 V; verify WP pin behavior and page size (16 B same) |
Compared with AT24C16-10PC-1.8, the AT24C16-10PI-1.8 offers extended thermal reliability without altering interface or layout, while M24C16-RMN6TP trades guaranteed 1.8 V/100 kHz operation for higher maximum clock rate - making the former ideal for cost-sensitive commercial designs and the latter better suited for mixed-voltage, speed-critical systems.
Availability
AT24C16-10PC-1.8 is available at Aetrix Electronics and suitable for smart metering, industrial PLCs, portable medical sensors, and automotive body control units requiring stable component supply across multi-year production cycles.
Supply support for AT24C16-10PC-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 acquired Atmel in 2016 and maintains full backward compatibility and long-term supply commitment for the AT24Cxx EEPROM family.
The AT24Cxx series was designed specifically for low-power, space-constrained embedded systems requiring robust, pin-efficient nonvolatile storage - emphasizing voltage flexibility, noise immunity, and field-programmable reliability.
FAQ
What is the minimum operating voltage for the AT24C16-10PC-1.8?
The AT24C16-10PC-1.8 is fully specified to operate down to 1.8 V, with guaranteed 100 kHz I²C communication, 3 µA standby current, and valid write functionality at this rail. Below 1.8 V, timing and write reliability are not assured - the device must not be powered below its absolute minimum rating.
Does the AT24C16-10PC-1.8 support multiple devices on the same I²C bus?
No - the AT24C16-10PC-1.8 has no functional device address pins (A0–A2 are NC), so only one AT24C16-10PC-1.8 can reside on a given I²C bus segment. To use multiple 16 Kbit EEPROMs, separate I²C buses or multiplexers are required.
What is the page size and maximum write length for the AT24C16-10PC-1.8?
The AT24C16-10PC-1.8 supports 16-byte page writes. A single I²C write transaction can load up to 16 consecutive bytes into one page; attempting to write beyond the 16-byte boundary causes automatic rollover to the start of the same page - overwriting earlier data unless managed in firmware.
How does the WP pin function on the AT24C16-10PC-1.8?
When WP is tied to VCC, the AT24C16-10PC-1.8 disables all write operations (byte, page, and erase) across the entire 16 Kbit array. When WP is grounded, full read/write capability is restored. No internal register or command is needed - protection is purely hardware-based and active immediately.
Is the AT24C16-10PC-1.8 RoHS compliant and lead-free?
Yes - the AT24C16-10PC-1.8 is manufactured in a RoHS-compliant, lead-free process and carries appropriate marking (e.g., "Pb-Free" on packaging). It meets JEDEC J-STD-020 moisture sensitivity level 1 and is qualified for standard reflow soldering profiles.
AT24C16-10PC-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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
AT24C16-10PC-1.8 FAQ
1.How can I place an order for AT24C16-10PC-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C16-10PC-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 AT24C16-10PC-1.8 reliable?
The price and inventory of AT24C16-10PC-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 AT24C16-10PC-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C16-10PC-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C16-10PC-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C16-10PC-1.8?
AT24C16-10PC-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C16-10PC-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 AT24C16-10PC-1.8?
For technical support, including AT24C16-10PC-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C16-10PC-1.8 requirements.
6.How does Aetrix verify that AT24C16-10PC-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C16-10PC-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 AT24C16-10PC-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C16-10PC-1.8?
All AT24C16-10PC-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C16-10PC-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 AT24C16-10PC-1.8 part is unused and in its original packaging.
Return procedure for AT24C16-10PC-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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