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Microchip Technology AT24C16N-10SI
- Part No.:
- AT24C16N-10SI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C16N-10SI.pdf
- Description:
- IC EEPROM 16KBIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,212
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Product details
Overview
AT24C16N-10SI from Microchip Technology (formerly Atmel) is a 16-kbit I²C-compatible serial EEPROM organized as 2048 × 8 bits, operating from 2.7V to 5.5V, featuring 16-byte page write capability, 100 kHz I²C bus speed at 2.7V, and industrial temperature range (–40°C to +85°C). It serves as nonvolatile configuration storage in embedded controllers, power management units, and sensor calibration modules.
For engineers reviewing the AT24C16N-10SI datasheet, AT24C16N-10SI pinout, AT24C16N-10SI application, or AT24C16N-10SI equivalent, key selection criteria include its 2.7V–5.5V supply range, 16-byte page write mode, WP pin hardware write protection, 10 ms max self-timed write cycle, and JEDEC SOIC-8 industrial-grade packaging.
Technical Context
The AT24C16N-10SI implements a two-wire I²C interface with Schmitt-triggered, noise-filtered SDA and SCL inputs, supporting standard-mode (100 kHz) operation at 2.7V. Its internal address counter enables sequential reads across 2048 bytes without readdressing.
Unlike smaller family members, the AT24C16N-10SI disables A0–A2 pins (NC), limiting bus addressing to a single device per I²C segment; page addressing uses the upper 3 bits of the 11-bit word address, enabling 128 pages of 16 bytes each.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8 bits), sufficient for firmware revision stamps, calibration coefficients, or device ID tables. |
| Supply Voltage Range | 2.7V to 5.5V - supports direct interfacing with 3.3V and 5V microcontrollers without level shifting. |
| I²C Clock Frequency | 100 kHz at 2.7V - ensures reliable timing margin in noisy industrial environments. |
| Write Cycle Time | 10 ms maximum - defines minimum interval between write commands; requires polling or timeout handling in host firmware. |
| Endurance & Retention | 1 million write cycles / 100 years data retention - validated for long-life field deployments in metering and industrial control. |
| Operating Temperature | –40°C to +85°C - qualified for industrial ambient conditions without derating. |
| Page Write Size | 16 bytes per page - reduces I²C transaction count when updating multi-byte parameters like sensor offsets or network settings. |
Pinout & Package
AT24C16N-10SI is housed in an 8-lead JEDEC SOIC package (8S1), 0.150" wide, with gull-wing leads and standard SOIC footprint compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A0) | Device Address Input | No-connect (NC) - unused in AT24C16; pin must be left floating or tied to GND/VCC with no functional effect. |
| 2 (A1) | Device Address Input | No-connect (NC) - unused in AT24C16; pin must be left floating or tied to GND/VCC with no functional effect. |
| 3 (A2) | Device Address Input | No-connect (NC) - unused in AT24C16; pin must be left floating or tied to GND/VCC with no functional effect. |
| 4 (GND) | Ground Reference | System common return path; must be low-impedance connection to minimize noise coupling into SDA/SCL. |
| 5 (VCC) | Power Supply | 2.7V–5.5V input; requires local 100 nF ceramic decoupling capacitor placed within 5 mm of pin. |
| 6 (WP) | Hardware Write Protect | Active-high signal: tied to VCC blocks all write operations including byte/page writes and erase; tied to GND enables full read/write access. |
| 7 (SCL) | Serial Clock Input | Open-drain input with Schmitt trigger; requires external pull-up resistor (typically 2.2–10 kΩ) to VCC. |
| 8 (SDA) | Serial Data I/O | Open-drain bidirectional line; shares same pull-up as SCL; supports multi-master arbitration via wired-AND behavior. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-triggered inputs | Enables robust noise immunity on SDA/SCL lines in electrically noisy industrial PCBs without external filtering. |
| 16-byte page write mode | Reduces I²C bus occupancy by up to 94% vs. individual byte writes when storing contiguous configuration data. |
| Hardware write protection (WP pin) | Prevents accidental overwrites during power-up/down transients or firmware glitches-no software dependency required. |
| 100-year data retention | Eliminates need for periodic refresh routines or backup power in battery-free applications like smart meters. |
| Industrial temperature grade | Validated operation across –40°C to +85°C ambient, enabling use in outdoor enclosures and motor drive cabinets. |
Applications
| Smart Energy Metering | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Storing tariff schedules, meter calibration constants, and tamper-event logs in DIN-rail mounted electricity meters. IC Role / Device Role / Timing Role: Nonvolatile parameter storage with guaranteed write integrity during brown-out events. Use Value: WP pin prevents corruption during grid voltage sags; 100-year retention avoids field recalibration. |
Use Scenario: Holding module identification, channel scaling factors, and diagnostic history in modular I/O backplanes. IC Role / Device Role / Timing Role: Configuration memory accessed at system boot and during hot-swap detection. Use Value: 16-byte page writes accelerate loading of multi-channel gain/offset tables; industrial temp rating matches PLC enclosure specs. |
| Automotive Body Control Units | Medical Diagnostic Equipment |
Use Scenario: Saving seat/mirror position presets, lighting profiles, and fault code history in 12V vehicle subsystems. IC Role / Device Role / Timing Role: Low-voltage EEPROM interfaced directly to 3.3V MCU I²C peripheral. Use Value: 2.7V operation ensures functionality during cold-crank (down to ~6V battery, regulated to 3.3V); NC A0–A2 simplify layout. |
Use Scenario: Archiving sensor calibration coefficients, user preferences, and regulatory audit trails in portable ultrasound devices. IC Role / Device Role / Timing Role: Secure, long-term storage of FDA-required traceability data. Use Value: 1M endurance supports daily recalibration cycles over 10+ years; WP pin enforces write-lock during clinical operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C16D-SSHM-T | Same 16Kbit capacity, SOIC-8, 2.5V–5.5V supply; differs in marking, tape-and-reel packaging, and AEC-Q100 Grade 3 qualification. | Qualified for automotive interior modules requiring extended reliability testing; not rated for industrial temp extremes (–40°C to +105°C vs. –40°C to +85°C). | Select AT24C16D-SSHM-T only if AEC-Q100 compliance is mandatory and 2.5V min supply suffices. |
| M24C16-RMN6TP | 16Kbit I²C EEPROM in SOIC-8, 1.8V–5.5V supply, 400 kHz max clock, but uses different write-protection scheme (software-controlled block lock). | Lacks dedicated WP pin; relies on software command sequence for write lock, increasing firmware complexity and vulnerability to reset corruption. | Choose M24C16-RMN6TP only when 1.8V operation or 400 kHz speed is required and hardware WP is not critical. |
Compared with AT24C16N-10SI, AT24C16D-SSHM-T adds automotive qualification at the cost of narrower voltage range, while M24C16-RMN6TP extends voltage and speed but removes hardware write protection-making AT24C16N-10SI optimal for industrial systems needing robust, pin-level data security.
Availability
AT24C16N-10SI is available at Aetrix Electronics and suitable for industrial automation, smart metering, and medical device manufacturing requiring stable component supply across extended product lifecycles.
Supply support for AT24C16N-10SI 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 technical and manufacturing continuity for the AT24C serial EEPROM family.
The AT24Cxx series was designed specifically for low-power, space-constrained embedded systems requiring reliable, byte-addressable nonvolatile storage with minimal external components.
FAQ
What is the maximum I²C clock frequency supported by the AT24C16N-10SI?
The AT24C16N-10SI supports up to 100 kHz I²C clock frequency when operated at 2.7V–5.5V. This is specified in the AC Characteristics table under fSCL for the "2.7-, 2.5-, 1.8-volt" column. Higher speeds (e.g., 400 kHz) apply only to 5.0V versions like AT24C16-10PC, not the -2.7 suffix variant. The 100 kHz limit ensures timing margin under worst-case voltage and temperature conditions.
Does the AT24C16N-10SI require external pull-up resistors on SDA and SCL lines?
Yes, the AT24C16N-10SI requires external pull-up resistors on both SDA and SCL pins because they are open-drain outputs. Typical values range from 2.2 kΩ to 10 kΩ to VCC, selected based on bus capacitance and desired rise time. The device's Schmitt-trigger inputs tolerate slow edges, but pull-ups must be present for proper I²C protocol operation and multi-device bus sharing.
How does the Write Protect (WP) pin function on the AT24C16N-10SI?
On the AT24C16N-10SI, the WP pin is active-high: when tied to VCC, it disables all write operations (byte, page, and write-enable commands), protecting the entire memory array; when tied to GND, full read/write access is enabled. This hardware lock operates independently of I²C commands and remains effective during power transitions, making it more reliable than software-based protection schemes.
Can multiple AT24C16N-10SI devices share the same I²C bus?
No, the AT24C16N-10SI does not support multi-device addressing: its A0, A1, and A2 pins are no-connect (NC), and the device address is fixed. As stated in the Device Addressing section, "The 16K does not use any device address bits… A0, A1 and A2 pins are no connects." Therefore, only one AT24C16N-10SI can reside on a given I²C segment without address conflict.
What is the page size and maximum write length per transaction for the AT24C16N-10SI?
The AT24C16N-10SI has a 16-byte page size and supports up to 16 bytes per page write transaction. As confirmed in the Features section and Memory Organization table, "16-byte Page (4K, 8K, 16K) Write Modes" applies to AT24C16, and "AT24C16, 16K SERIAL EEPROM: Internally organized with 128 pages of 16 bytes each." Partial page writes are allowed, but crossing page boundaries requires separate transactions.
AT24C16N-10SI 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:
- 900 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C16N-10SI FAQ
1.How can I place an order for AT24C16N-10SI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C16N-10SI 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 AT24C16N-10SI reliable?
The price and inventory of AT24C16N-10SI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT24C16N-10SI is usually 5 days.
3.What payment methods are accepted for AT24C16N-10SI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C16N-10SI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C16N-10SI?
AT24C16N-10SI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C16N-10SI 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 AT24C16N-10SI?
For technical support, including AT24C16N-10SI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C16N-10SI requirements.
6.How does Aetrix verify that AT24C16N-10SI is sourced from the original manufacturer or authorized distributors?
All AT24C16N-10SI 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 AT24C16N-10SI meets industry standards.
7.What is the process for return or replacement of AT24C16N-10SI?
All AT24C16N-10SI units undergo pre-shipment inspection (PSI). If there is an issue with AT24C16N-10SI, 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 AT24C16N-10SI part is unused and in its original packaging.
Return procedure for AT24C16N-10SI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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