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Microchip Technology AT24C16-10PC-2.7
- Part No.:
- AT24C16-10PC-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
AT24C16-10PC-2.7.pdf
- Description:
- IC EEPROM 16KBIT I2C 400KHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,740
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Product details
Overview
AT24C16-10PC-2.7 from Microchip Technology (formerly Atmel) is a 16-kbit (2048 × 8) two-wire serial EEPROM optimized for low-voltage embedded systems. It operates from 2.7V to 5.5V, supports 100 kHz I²C bus timing, features hardware write protection via the WP pin, and delivers 1 million write cycles with 100-year data retention - used in industrial sensor calibration storage and power-meter firmware parameter backup.
For engineers reviewing the AT24C16-10PC-2.7 datasheet, AT24C16-10PC-2.7 pinout, AT24C16-10PC-2.7 application, or AT24C16-10PC-2.7 equivalent, key selection criteria include its 2.7V–5.5V supply range, 16-byte page write capability, SOIC-8 package compatibility, and absence of device address pins (A0–A2 are NC), limiting bus topology to one device per I²C segment.
Technical Context
The AT24C16-10PC-2.7 implements a fixed 11-bit internal word address space mapped across 128 pages of 16 bytes each, enabling sequential and random reads without external address latching. Its I²C interface uses open-drain SDA with Schmitt-triggered SCL and SDA inputs for noise immunity, and supports acknowledge polling during write cycles.
Unlike smaller family members, the AT24C16-10PC-2.7 disables A0–A2 pins (no-connect), eliminating device addressing - all communication targets this single device on the bus. Write protection is strictly hardware-controlled via the WP pin: tied to VCC to lock the full 16K array, or GND for full read/write access.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8 bits), organized as 128 pages × 16 bytes - enables compact firmware parameter storage without external address decoding logic. |
| Supply Voltage Range | 2.7V to 5.5V - supports direct interfacing with 3.3V microcontrollers and legacy 5V systems without level-shifting. |
| I²C Clock Frequency | 100 kHz max at 2.7V - ensures reliable timing margin in noisy industrial environments with long trace runs. |
| Write Cycle Time | 10 ms maximum - defines minimum inter-write delay; critical for real-time logging where burst writes must be scheduled. |
| Endurance & Retention | 1 million write cycles / 100-year data retention - validated for applications requiring infrequent but mission-critical configuration updates over product lifetime. |
| Standby Current | 4 µA max at 2.7V - enables ultra-low-power operation in battery-backed systems such as smart utility meters. |
| Package | 8-lead JEDEC SOIC (8S1) - industry-standard footprint compatible with automated PCB assembly and thermal reflow profiles. |
Pinout & Package
AT24C16-10PC-2.7 is supplied in an 8-lead JEDEC SOIC package (8S1), 0.150" wide, with standard gull-wing leads. Pin 1 is marked by a beveled corner or dot; the package is RoHS-compliant and rated for commercial temperature range (0°C to +70°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | No-connect (NC) | Not bonded internally; must be left unconnected - eliminates bus arbitration complexity but restricts multi-device I²C topology. |
| GND | Ground reference | Common return path for VCC and I/O; requires low-impedance connection to minimize ground bounce during write cycles. |
| VCC | Power supply input | Accepts 2.7–5.5V; decoupling capacitor (0.1 µF ceramic) required within 10 mm for stable 100 kHz operation. |
| WP | Hardware write protect | Active-high: tie to VCC to disable all writes; tie to GND for full read/write access - prevents accidental firmware corruption. |
| SCL | Serial clock input | Positive-edge sampled clock; Schmitt-triggered for noise rejection; requires external pull-up resistor (typically 4.7 kΩ). |
| SDA | Serial data bidirectional I/O | Open-drain output; shares bus with other I²C devices; requires same external pull-up as SCL. |
Key Features
| Feature | Design Value |
|---|---|
| 16-byte page write mode | Enables efficient bulk parameter updates - up to 16 bytes written per transaction, reducing I²C overhead versus byte-by-byte writes. |
| Hardware write protection (WP pin) | Prevents unintended writes during power transients or firmware bugs - no software dependency required for critical configuration lockdown. |
| 100-year data retention | Guarantees stored calibration constants, serial numbers, or security keys remain valid across full product lifecycle without refresh. |
| Schmitt-triggered inputs | Rejects sub-microsecond noise spikes on SCL/SDA lines - essential for robust operation in electrically noisy factory-floor environments. |
| 11-bit internal address counter | Supports seamless sequential reads across full 2048-word memory space without host-side address management. |
Applications
| Industrial Sensor Calibration Storage | Smart Energy Meter Firmware Parameters |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients for temperature, pressure, and current sensors in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding trim values accessed at system boot before ADC initialization. Use Value: Eliminates need for external trimming potentiometers; enables field recalibration via secure I²C commands without hardware modification. | Use Scenario: Holding tariff tables, billing counters, and cryptographic keys in ANSI C12.22-compliant electricity meters. IC Role / Device Role / Timing Role: Secure, tamper-resistant parameter store synchronized with metrology IC interrupts during power-fail events. Use Value: Meets ANSI C12.19 data integrity requirements via hardware WP pin locking during meter firmware updates. |
| Embedded System Boot Configuration | Medical Device Usage Logs |
Use Scenario: Saving user-selected display brightness, language, and network settings in portable diagnostic equipment. IC Role / Device Role / Timing Role: Persistent settings manager accessed during uC initialization sequence prior to GUI startup. Use Value: Survives cold resets and battery removal; retains HIPAA-compliant configuration history without DRAM backup. | Use Scenario: Recording timestamped operational hours, self-test results, and error codes in FDA Class II infusion pumps. IC Role / Device Role / Timing Role: Fail-safe event logger writing critical diagnostics during brown-out conditions using internal charge pump. Use Value: Provides auditable maintenance trail meeting IEC 62304 software lifecycle requirements for medical firmware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C16-10PC | Same 16K capacity and SOIC-8 package, but rated for 4.5–5.5V only - lacks 2.7V low-voltage operation. | Restricted to 5V-only systems; incompatible with 3.3V or mixed-voltage designs requiring 2.7V minimum. | Select only if board operates exclusively at 5V and cost sensitivity outweighs voltage flexibility. |
| M24C16-WMN6TP | STMicroelectronics 16K I²C EEPROM; identical 2.7–5.5V range, 100 kHz speed, and SOIC-8 package; A0–A2 pins are NC like AT24C16-10PC-2.7. | Pin-compatible and functionally equivalent; differs only in endurance (400k vs. 1M cycles) and retention (40 vs. 100 years). | Valid drop-in alternative where 400k cycles suffice; verify long-term data retention requirements match 40-year spec. |
Compared with AT24C16-10PC-2.7, AT24C16-10PC sacrifices low-voltage operation for higher-speed 400 kHz support, while M24C16-WMN6TP trades endurance and retention for second-source availability - both require validation of WP pin behavior and page-write timing under actual system load.
Availability
AT24C16-10PC-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, smart energy metering, and embedded medical device design requiring stable component supply across extended production lifecycles.
Supply support for AT24C16-10PC-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 applications.
The AT24Cxx family was designed specifically for reliable, low-power serial configuration storage in resource-constrained embedded systems - emphasizing write endurance, voltage flexibility, and I²C protocol robustness.
FAQ
What is the maximum I²C clock frequency supported by AT24C16-10PC-2.7?
The AT24C16-10PC-2.7 supports up to 100 kHz I²C clock frequency when operating within its 2.7V–5.5V supply range. This limit ensures timing margin for noise immunity and reliable communication in industrial environments - higher frequencies (e.g., 400 kHz) require the 5V-rated AT24C16-10PC variant.
Are the A0, A1, and A2 pins functional on AT24C16-10PC-2.7?
No - on AT24C16-10PC-2.7, the A0, A1, and A2 pins are no-connect (NC) and must remain unconnected. Unlike smaller AT24Cxx variants, the 16K version uses these pins solely for memory page addressing, not device selection, so only one AT24C16-10PC-2.7 can reside on a given I²C bus.
How does the Write Protect (WP) pin function on AT24C16-10PC-2.7?
On AT24C16-10PC-2.7, the WP pin provides hardware-level write protection: when tied to VCC, it locks the entire 16K memory array against writes; when tied to GND, full read/write access is enabled. This behavior is independent of software commands and remains active during power transitions.
What is the page size and write cycle time for AT24C16-10PC-2.7?
AT24C16-10PC-2.7 uses a 16-byte page write architecture with a maximum self-timed write cycle time of 10 ms. This allows up to 16 bytes to be written in a single I²C transaction, and guarantees completion within 10 ms - critical for scheduling deterministic firmware update sequences.
Does AT24C16-10PC-2.7 support 1.8V operation?
No - AT24C16-10PC-2.7 is specified for 2.7V to 5.5V operation only. For 1.8V systems, the distinct part number AT24C16-10PC-1.8 must be used, which has different DC characteristics and AC timing parameters validated down to 1.8V.
AT24C16-10PC-2.7 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:
- 2.7V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
AT24C16-10PC-2.7 FAQ
1.How can I place an order for AT24C16-10PC-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C16-10PC-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 AT24C16-10PC-2.7 reliable?
The price and inventory of AT24C16-10PC-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 AT24C16-10PC-2.7 is usually 5 days.
3.What payment methods are accepted for AT24C16-10PC-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C16-10PC-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C16-10PC-2.7?
AT24C16-10PC-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C16-10PC-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 AT24C16-10PC-2.7?
For technical support, including AT24C16-10PC-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C16-10PC-2.7 requirements.
6.How does Aetrix verify that AT24C16-10PC-2.7 is sourced from the original manufacturer or authorized distributors?
All AT24C16-10PC-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 AT24C16-10PC-2.7 meets industry standards.
7.What is the process for return or replacement of AT24C16-10PC-2.7?
All AT24C16-10PC-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C16-10PC-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 AT24C16-10PC-2.7 part is unused and in its original packaging.
Return procedure for AT24C16-10PC-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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