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Microchip Technology AT24C16-10PI-2.7
- Part No.:
- AT24C16-10PI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
AT24C16-10PI-2.7.pdf
- Description:
- IC EEPROM 16KBIT I2C 400KHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,266
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Product details
Overview
AT24C16-10PI-2.7 from Microchip Technology (formerly Atmel) is a 16K-bit (2048 × 8) two-wire serial EEPROM optimized for low-voltage embedded systems. It operates from 2.7V to 5.5V, supports 400 kHz I²C bus speed at ≥2.7V, features hardware write protection via the WP pin, and delivers 1 million write cycles with 100-year data retention. It is commonly used for configuration storage in industrial controllers and power management units.
For engineers reviewing the AT24C16-10PI-2.7 datasheet, AT24C16-10PI-2.7 pinout, AT24C16-10PI-2.7 application, or AT24C16-10PI-2.7 equivalent, key selection criteria include VCC range compatibility (2.7–5.5V), 16-byte page write capability, WP pin functionality, I²C timing compliance at target voltage, and PDIP-8 package suitability for through-hole prototyping and legacy board replacement.
Technical Context
The AT24C16-10PI-2.7 implements a standard I²C-compatible two-wire interface with open-drain SDA and active-high SCL, using Schmitt-trigger inputs for noise immunity. Its internal memory is organized as 128 pages of 16 bytes each, requiring an 11-bit word address for random access.
Unlike smaller family members, the AT24C16 omits A0–A2 device address pins - all three are No Connect - limiting bus topology to one device per I²C segment. Write protection is controlled solely by the WP pin: tied to GND for full read/write, tied to VCC for upper-half array protection (8K bytes).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8 bits), sufficient for storing firmware calibration tables or multi-parameter device configurations |
| Supply Voltage | 2.7V to 5.5V - compatible with 3.3V and 5V logic domains without level shifting |
| I²C Clock Speed | 400 kHz maximum at VCC ≥ 2.7V - enables fast parameter updates in real-time control loops |
| Page Write Size | 16-byte pages - reduces I²C transaction overhead versus byte writes; supports burst configuration saves |
| Write Endurance | 1 million write cycles - supports daily field calibration or logging over >25 years of operation |
| Data Retention | 100 years at +25°C - ensures long-term reliability in unpowered storage applications |
| Operating Temp | -40°C to +85°C - qualified for industrial ambient environments without derating |
Pinout & Package
AT24C16-10PI-2.7 uses an 8-lead PDIP (Plastic Dual Inline Package), 0.300" wide body, with through-hole mounting and JEDEC MS-001 compliant dimensions (D = 0.355–0.400", E = 0.300–0.325").
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | No Connect | Not bonded internally; must be left floating or tied to any potential - no device addressing capability |
| SDA | Serial Data I/O | Open-drain bidirectional line; requires external pull-up; shares bus with other I²C devices |
| SCL | Serial Clock Input | Positive-edge clocked input; controls timing of all data transfers; driven by master only |
| WP | Write Protect | Hardware lock: GND = full read/write; VCC = upper 8K protected; no software override |
| GND | Ground Reference | Primary return path for VCC and I/O; must be low-impedance for noise immunity |
| VCC | Power Supply | Single supply input; decoupling capacitor (0.1 µF) required near pin for stable operation |
Key Features
| Feature | Design Value |
|---|---|
| 16-byte page write mode | Reduces I²C bus occupancy by up to 94% vs. sequential byte writes for block updates |
| Schmitt-trigger inputs | Rejects <100 ns noise spikes on SCL/SDA, enabling reliable operation in electrically noisy industrial cabinets |
| Self-timed write cycle | Fixed 5 ms max duration; eliminates need for polling delay estimation in host firmware |
| Hardware write protection | Prevents accidental overwrites during power brownouts or firmware glitches without CPU involvement |
| Extended temperature grade | Validated operation from -40°C to +85°C - suitable for outdoor metering and factory automation |
Applications
| Industrial PLC Configuration Storage | Smart Energy Meter Calibration Data |
|---|---|
Use Scenario: Storing I/O mapping, PID tuning parameters, and alarm thresholds in programmable logic controllers deployed in manufacturing lines. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed infrequently during commissioning or maintenance; retains values across AC power loss. Use Value: Eliminates need for battery-backed SRAM; supports 1M rewrites for field recalibration over 25+ years. | Use Scenario: Holding metrology calibration coefficients, tariff tables, and tamper-event logs in ANSI C12.20-compliant electricity meters. IC Role / Device Role / Timing Role: Secure, write-protected memory for critical calibration data; WP pin tied to regulated VCC to prevent corruption during brownout. Use Value: 100-year data retention ensures accuracy compliance over full product lifecycle without recalibration. |
| Automotive Body Control Module Settings | Medical Infusion Pump Safety Parameters |
Use Scenario: Saving seat/mirror position presets, lighting profiles, and door lock behavior in 12V automotive BCMs operating at 2.7–5.5V. IC Role / Device Role / Timing Role: Low-voltage EEPROM interfaced directly to 3.3V microcontroller I²C port; no level shifter required. Use Value: 400 kHz bus speed enables fast user-setting recall (<100 ms); PDIP-8 simplifies manual rework in low-volume builds. | Use Scenario: Storing drug library limits, dose safety interlocks, and audit trail timestamps in Class II medical infusion pumps. IC Role / Device Role / Timing Role: Fail-safe nonvolatile memory with hardware write lock; WP tied to system power rail to prevent runtime corruption. Use Value: 1M endurance supports daily safety verification cycles; -40°C to +85°C rating covers sterilization and clinical environments. |
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-2.7 | Pin-compatible revision with enhanced ESD robustness (4 kV HBM) and improved AC timing margins; same PDIP-8 footprint and 2.7–5.5V operation | Recommended for new designs per Microchip documentation; supports higher noise immunity in motor-drive adjacent layouts | Select when designing new products requiring long-term supply assurance and latest qualification data |
| M24C16-WMN6TP | STMicroelectronics 16K I²C EEPROM in SOIC-8; identical 2.7–5.5V range and 400 kHz speed but different WP logic (active-high enable) | Requires minor schematic update for WP connection; validated for extended temp (-40°C to +105°C) | Choose for dual-sourcing flexibility or where ST's automotive AEC-Q100 qualification is required |
Compared with AT24C16-10PI-2.7, the AT24C16A-10PI-2.7 offers superior ESD tolerance and documented longevity for new designs, while M24C16-WMN6TP provides second-source assurance with minor WP interface adaptation - both retain full functional equivalence for configuration storage in industrial and medical systems.
Availability
AT24C16-10PI-2.7 is available at Aetrix Electronics and suitable for industrial PLCs, smart energy meters, and automotive body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AT24C16-10PI-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 AT24C16-10PI-2.7 belongs to Microchip's legacy AT24C serial EEPROM product line, designed specifically for cost-sensitive, low-power embedded systems needing reliable, pin-compatible configuration storage with minimal external components.
FAQ
What is the memory organization of the AT24C16-10PI-2.7?
The AT24C16-10PI-2.7 contains 16,384 bits organized as 2048 words of 8 bits each, internally segmented into 128 pages of 16 bytes. It uses an 11-bit data word address for random access, and the A0–A2 pins are No Connect - eliminating device addressing and restricting bus use to a single instance per I²C segment.
Does the AT24C16-10PI-2.7 support 1.8V operation?
No, the AT24C16-10PI-2.7 is specified only for 2.7V to 5.5V operation. The "-2.7" suffix denotes the low-voltage variant within that range. For 1.8V compatibility, Microchip recommends the AT24C16-10PI-1.8 variant - a distinct orderable part with different DC and AC characteristics.
How does the Write Protect (WP) pin function on the AT24C16-10PI-2.7?
On the AT24C16-10PI-2.7, the WP pin enables hardware-based write protection: when tied to GND, full read/write access is permitted; when tied to VCC, the upper half of memory (8K bits) is write-protected while lower 8K remains writable. This behavior is fixed and cannot be overridden by I²C commands.
Can the AT24C16-10PI-2.7 be used in place of AT24C08 or AT24C04 devices?
Yes, the AT24C16-10PI-2.7 is software-compatible with smaller AT24C family members (e.g., AT24C08) in terms of I²C protocol and command structure. However, its larger address space requires 11-bit addressing instead of 10-bit (AT24C08) or 9-bit (AT24C04), so firmware must be updated to handle extended addressing and avoid unintended page rollover.
What package type does the AT24C16-10PI-2.7 use, and what are its key mechanical dimensions?
The AT24C16-10PI-2.7 uses an 8-lead PDIP (Plastic Dual Inline Package) with 0.300" body width. Key JEDEC MS-001 dimensions include: length D = 0.355–0.400", width E = 0.300–0.325", lead pitch e = 0.100", and overall height A2 = 0.115–0.195". It is designed for through-hole PCB assembly and manual prototyping.
AT24C16-10PI-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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
AT24C16-10PI-2.7 FAQ
1.How can I place an order for AT24C16-10PI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C16-10PI-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 AT24C16-10PI-2.7 reliable?
The price and inventory of AT24C16-10PI-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 AT24C16-10PI-2.7 is usually 5 days.
3.What payment methods are accepted for AT24C16-10PI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C16-10PI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C16-10PI-2.7?
AT24C16-10PI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C16-10PI-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 AT24C16-10PI-2.7?
For technical support, including AT24C16-10PI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C16-10PI-2.7 requirements.
6.How does Aetrix verify that AT24C16-10PI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT24C16-10PI-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 AT24C16-10PI-2.7 meets industry standards.
7.What is the process for return or replacement of AT24C16-10PI-2.7?
All AT24C16-10PI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C16-10PI-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 AT24C16-10PI-2.7 part is unused and in its original packaging.
Return procedure for AT24C16-10PI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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