My Inquiry
My Account
Microchip Technology AT24C16AN-10SI-2.7-T
- Part No.:
- AT24C16AN-10SI-2.7-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C16AN-10SI-2.7-T.pdf
- Description:
- IC EEPROM 16KBIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,172
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT24C16AN-10SI-2.7-T 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, with 100 kHz (1.8V) / 400 kHz (2.7V/5V) clock rate, 128-page × 16-byte architecture, and hardware write protection via WP pin. It serves as nonvolatile configuration storage in industrial control modules requiring robust data retention.
For engineers reviewing the AT24C16AN-10SI-2.7-T datasheet, AT24C16AN-10SI-2.7-T pinout, AT24C16AN-10SI-2.7-T application, or AT24C16AN-10SI-2.7-T equivalent, key selection criteria include 2.7V–5.5V supply compatibility, 400 kHz I²C timing at 2.7V, 16-byte page write capability, WP-enabled hardware data protection, and JEDEC SOIC-8 packaging for space-constrained PCBs.
Technical Context
The AT24C16AN-10SI-2.7-T implements a two-wire I²C interface with open-drain SDA/SCL pins, Schmitt-triggered inputs for noise immunity, and bi-directional data transfer protocol compliant with standard I²C specifications. Its internal address counter supports current-address, random-address, and sequential read modes.
Unlike smaller family members (AT24C02A/04A/08A), the AT24C16AN-10SI-2.7-T disables A0–A2 device address pins (NC), limiting bus topology to one device per I²C segment. Write protection operates exclusively via 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), enabling storage of firmware calibration tables or device-specific configuration parameters. |
| Supply Voltage Range | 2.7V to 5.5V - compatible with 3.3V and 5V logic systems without level-shifting. |
| I²C Clock Rate | 400 kHz at 2.7V/5V - supports high-speed configuration writes in time-critical boot sequences. |
| Page Write Size | 16 bytes per page - reduces write transaction overhead versus byte-write mode by up to 94%. |
| Data Retention | 100 years - ensures long-term reliability in unattended industrial deployments. |
| Endurance | 1 million write cycles - sufficient for daily recalibration logging over 27+ years. |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade embedded applications. |
Pinout & Package
AT24C16AN-10SI-2.7-T uses an 8-lead JEDEC SOIC (8S1) package: 0.150" wide, gull-wing leads, body size 5.0 mm × 3.99 mm, lead pitch 1.27 mm.
| 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 layout. |
| GND | Ground reference | Common return path for VCC and I/O signals; must be low-impedance for stable EEPROM operation. |
| VCC | Power supply input | Accepts 2.7V–5.5V; decoupling capacitor (0.1 µF ceramic) required within 10 mm of pin. |
| WP | Hardware write protect | Active-high: tie to VCC to lock full 16K array; tie to GND for normal read/write access. |
| SCL | Serial clock input | Positive-edge clocked; requires external pull-up (typically 2.2–10 kΩ) to VCC. |
| SDA | Serial data bidirectional I/O | Open-drain output; shared across multiple I²C devices; requires same pull-up as SCL. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware write protection | WP pin enables full-array lock at VCC, preventing accidental firmware corruption during power-up or brown-out events. |
| 16-byte page write | Reduces I²C transaction count by 15× vs. byte writes - critical for minimizing bus occupancy in multi-device systems. |
| 100-year data retention | Eliminates need for periodic refresh or backup power in battery-free industrial sensors and metering endpoints. |
| 400 kHz I²C at 2.7V | Enables fast configuration loading even under marginal supply conditions, avoiding timing failures in low-voltage designs. |
| Industrial temperature range | Validated operation from −40°C to +85°C ensures reliability in factory automation, HVAC controllers, and outdoor telecom equipment. |
Applications
| Industrial PLC Configuration Storage | Smart Energy Meter Calibration Data |
|---|---|
Use Scenario: Storing I/O mapping, scaling coefficients, and alarm thresholds in programmable logic controllers deployed in manufacturing lines. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding persistent settings that survive AC power loss and firmware updates. Use Value: Enables zero-downtime field reconfiguration without requiring external backup batteries or supercapacitors. | Use Scenario: Retaining metrology calibration constants, tariff tables, and tamper-event logs in ANSI C12.20-compliant electricity meters. IC Role / Device Role / Timing Role: Secure parameter store accessed during meter boot and periodic self-test routines. Use Value: WP pin prevents unauthorized modification of revenue-grade calibration data, satisfying utility security requirements. |
| Medical Diagnostic Device Settings | Automotive Body Control Module Parameters |
Use Scenario: Saving user-selected display brightness, language, and diagnostic test history in portable ultrasound units. IC Role / Device Role / Timing Role: Low-power configuration memory accessed only during startup or menu navigation. Use Value: 1 µA standby current at 2.7V extends battery life between charges while maintaining data integrity across 10,000+ power cycles. | Use Scenario: Storing seat position presets, mirror angles, and lighting profiles in automotive BCMs with CAN/LIN interfaces. IC Role / Device Role / Timing Role: Secondary nonvolatile memory synchronized with main MCU during ignition-on initialization. Use Value: 128-page organization allows atomic updates of multi-parameter sets without risking partial writes during vehicle vibration or voltage transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics M24C16-WMN6TP | Same 16Kbit capacity, 2.5V–5.5V supply, 400 kHz I²C, but uses 1.8V–5.5V logic thresholds and lacks WP pin on SOIC-8 variant. | Requires external GPIO-controlled write enable for data protection; unsuitable where hardware lock is mandated by safety standards. | Select when cost sensitivity outweighs WP requirement and system already provides software-based write gating. |
| ON Semiconductor CAT24C16WI-GT3 | Identical 16Kbit, 2.7V–5.5V, 400 kHz I²C, and WP functionality; however, rated only to +85°C (not extended temp) and has higher max standby current (5 µA vs. 4 µA). | Not qualified for high-ambient environments like engine bay or solar inverters; acceptable for indoor consumer electronics. | Choose for commercial-grade applications where extended temperature is unnecessary and footprint compatibility is critical. |
Compared with M24C16-WMN6TP and CAT24C16WI-GT3, the AT24C16AN-10SI-2.7-T uniquely combines guaranteed 400 kHz operation at 2.7V, full-array hardware write protection, and industrial −40°C to +85°C qualification - making it optimal for mission-critical embedded systems demanding deterministic timing and data integrity.
Availability
AT24C16AN-10SI-2.7-T is available at Aetrix Electronics and suitable for industrial PLCs, smart energy meters, medical diagnostics equipment, and automotive body control modules requiring stable component supply across extended product lifecycles.
Supply support for AT24C16AN-10SI-2.7-T 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 qualifications.
The AT24C16AN-10SI-2.7-T belongs to Microchip's AT24CxxA serial EEPROM product line, designed specifically for reliable, low-power, I²C-based configuration and parameter storage in harsh industrial and automotive environments.
FAQ
What is the maximum I²C clock frequency supported by AT24C16AN-10SI-2.7-T at 2.7V?
The AT24C16AN-10SI-2.7-T supports up to 400 kHz I²C clock frequency when operated at 2.7V, as confirmed in the AC Characteristics table of its official datasheet (Rev. 0976M). This enables faster configuration writes than legacy 100 kHz EEPROMs while maintaining timing margin under nominal supply conditions. The AT24C16AN-10SI-2.7-T achieves this using optimized internal clock circuitry and Schmitt-triggered inputs for noise resilience.
Does AT24C16AN-10SI-2.7-T require external pull-up resistors on SDA and SCL lines?
Yes, AT24C16AN-10SI-2.7-T requires external pull-up resistors on both SDA and SCL lines because its I²C interface uses open-drain outputs. Typical values range from 2.2 kΩ to 10 kΩ depending on bus capacitance and speed requirements. The AT24C16AN-10SI-2.7-T datasheet specifies that these resistors must connect to the same VCC rail used by the device to ensure proper logic levels and noise immunity.
How does the Write Protect (WP) pin function on AT24C16AN-10SI-2.7-T?
On AT24C16AN-10SI-2.7-T, the WP pin provides hardware-level write protection: when tied to VCC, it locks the entire 16Kbit memory array against all write operations including byte and page writes; when tied to GND, full read/write access is enabled. Unlike software locks, this protection remains active during power transitions and is independent of MCU firmware state - a critical feature for safety-critical AT24C16AN-10SI-2.7-T deployments.
What is the page write size for AT24C16AN-10SI-2.7-T, and why does it matter?
The AT24C16AN-10SI-2.7-T supports 16-byte page writes, meaning up to 16 consecutive bytes can be written in a single I²C transaction. This reduces bus overhead significantly compared to byte writes - for example, writing 16 bytes requires only one start/stop sequence instead of 16. This improves system responsiveness and minimizes I²C bus contention in multi-master environments where the AT24C16AN-10SI-2.7-T shares the bus with sensors or displays.
Is AT24C16AN-10SI-2.7-T compatible with 1.8V I²C systems?
No, AT24C16AN-10SI-2.7-T is not compatible with 1.8V I²C systems. Its suffix "-2.7" denotes the 2.7V–5.5V operating range; it lacks 1.8V logic-level support. For 1.8V operation, the correct variant is AT24C16AN-10SI-1.8. Using AT24C16AN-10SI-2.7-T in a 1.8V system risks failure to acknowledge addresses, corrupted writes, or noncompliance with I²C voltage thresholds - all verified in the DC Characteristics table of the AT24C16AN-10SI-2.7-T datasheet.
AT24C16AN-10SI-2.7-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 4.5 µs
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C16AN-10SI-2.7-T FAQ
1.How can I place an order for AT24C16AN-10SI-2.7-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C16AN-10SI-2.7-T 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 AT24C16AN-10SI-2.7-T reliable?
The price and inventory of AT24C16AN-10SI-2.7-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT24C16AN-10SI-2.7-T is usually 5 days.
3.What payment methods are accepted for AT24C16AN-10SI-2.7-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C16AN-10SI-2.7-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C16AN-10SI-2.7-T?
AT24C16AN-10SI-2.7-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C16AN-10SI-2.7-T 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 AT24C16AN-10SI-2.7-T?
For technical support, including AT24C16AN-10SI-2.7-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C16AN-10SI-2.7-T requirements.
6.How does Aetrix verify that AT24C16AN-10SI-2.7-T is sourced from the original manufacturer or authorized distributors?
All AT24C16AN-10SI-2.7-T 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 AT24C16AN-10SI-2.7-T meets industry standards.
7.What is the process for return or replacement of AT24C16AN-10SI-2.7-T?
All AT24C16AN-10SI-2.7-T units undergo pre-shipment inspection (PSI). If there is an issue with AT24C16AN-10SI-2.7-T, 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 AT24C16AN-10SI-2.7-T part is unused and in its original packaging.
Return procedure for AT24C16AN-10SI-2.7-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT24C16AN-10SI-2.7-T Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
