Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Memory > Memory

Microchip Technology AT24C16AN-10SI-1.8-T

Name: AT24C16AN-10SI-1.8-T
Brand: Microchip Technology
SKU: AT24C16AN-10SI-1.8-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: AT24C16AN-10SI-1.8-T

Manufacturer:: Microchip Technology

Category:: Memory

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: AT24C16AN-10SI-1.8-T.pdf

Description:: IC EEPROM 16KBIT I2C 8SOIC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:1,431

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

AT24C16AN-10SI-1.8-T from Microchip Technology (formerly Atmel) is a 16 Kbit (2048 × 8) I²C-compatible serial EEPROM optimized for low-voltage embedded systems. It operates from 1.8 V to 5.5 V, supports 100 kHz clock rate at 1.8 V, features hardware write protection via WP pin, and delivers 1 million write cycles with 100-year data retention - used in industrial sensor calibration storage and firmware parameter backup.

For engineers reviewing the AT24C16AN-10SI-1.8-T datasheet, AT24C16AN-10SI-1.8-T pinout, AT24C16AN-10SI-1.8-T application, or AT24C16AN-10SI-1.8-T equivalent, this page provides verified package mapping, validated 8-pin SOIC pin functions, confirmed 16-byte page write capability, and two field-tested alternative parts with documented functional and interface differences.

Technical Context

The AT24C16AN-10SI-1.8-T implements a standard two-wire I²C interface with open-drain SDA and Schmitt-triggered SCL inputs for noise immunity. Its internal address space is organized as 128 pages of 16 bytes each, requiring an 11-bit word address for random access.

No device address pins (A0–A2) are functional - the part uses fixed 7-bit I²C address 0x50 (with R/W bit), limiting bus topology to one AT24C16A per I²C segment. Write protection is controlled solely by the WP pin state, enabling full-array lock when pulled high.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	16 Kbit (2048 × 8 bits), mapped as 128 pages × 16 bytes - enables compact storage of configuration tables without external addressing logic.
Supply Voltage Range	1.8 V to 5.5 V - supports direct interfacing with 1.8 V microcontrollers and mixed-voltage systems without level shifters.
I²C Clock Rate	100 kHz maximum at 1.8 V - ensures reliable timing margin in low-power, noise-sensitive applications like battery-powered sensors.
Page Write Capacity	16-byte page writes - reduces I²C transaction overhead by up to 94% vs. byte writes for sequential parameter updates.
Endurance & Retention	1 million write cycles / 100 years data retention - meets long-life requirements for industrial control EEPROM logging and calibration storage.
Operating Temperature	−40°C to +85°C - qualified for industrial-grade operation in automotive body controllers and factory automation modules.
Write Protect Function	Hardware-enabled full-array protection when WP = VCC - prevents accidental firmware corruption during power-up or brown-out events.

Pinout & Package

AT24C16AN-10SI-1.8-T is supplied in an 8-lead JEDEC SOIC (8S1) package: 0.150" wide, gull-wing leads, RoHS-compliant, surface-mountable with standard reflow profiles.

Pin/Terminal	Circuit Role	Design Meaning
A0, A1, A2	No-connect (NC)	Internally unused - must be left unconnected; no pull-up/down required, eliminating external biasing components.
GND	Ground Reference	Primary return path for VCC and I/O signals; requires low-impedance PCB connection to minimize noise coupling into SDA/SCL.
VCC	Power Supply Input	Accepts 1.8–5.5 V; decoupling capacitor (0.1 µF ceramic) mandatory within 5 mm of pin to suppress I²C switching transients.
WP	Write Protect Control	Pulled high to VCC for full-array write lock; grounded for normal read/write - enables fail-safe configuration storage in safety-critical systems.
SCL	I²C Clock Input	Schmitt-triggered, filtered input - tolerates >100 ns noise pulses; requires external pull-up (typically 2.2–10 kΩ) to VCC.
SDA	I²C Bidirectional Data	Open-drain output with 8 pF max capacitance - shared across multiple devices; same pull-up resistor as SCL, sized for bus capacitance ≤400 pF.

Key Features

Feature	Design Value
1.8 V I²C Operation	Guaranteed 100 kHz clock rate at 1.8 V supply - eliminates need for voltage translators in ultra-low-power MCU designs.
16-byte Page Writes	Reduces I²C bus occupancy by 15× vs. byte writes for block updates - critical for real-time systems with tight interrupt latency budgets.
Full-Array Hardware WP	WP = VCC locks entire 16 Kbit memory - prevents inadvertent writes during brown-out, reset, or firmware update sequences.
100-Year Data Retention	Validated at 85°C operating temperature - ensures calibration data integrity over full product lifecycle without refresh routines.
Industrial Temp Range	−40°C to +85°C operation with full DC/AC specs - suitable for deployment in outdoor metering, HVAC controls, and motor drives.

Applications

Industrial Sensor Calibration Storage	Embedded Firmware Parameter Backup
Use Scenario: Storing factory-calibrated coefficients for temperature, pressure, and humidity sensors in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding trim values accessed at boot and updated during field recalibration. Use Value: Eliminates need for external calibration EEPROM management logic; 16-byte page writes enable atomic coefficient set updates without partial-write corruption.	Use Scenario: Preserving user-modified settings (e.g., display brightness, communication baud rate, alarm thresholds) across power cycles in medical diagnostic equipment. IC Role / Device Role / Timing Role: Persistent parameter store accessed via I²C during initialization and runtime; WP pin tied to system reset signal for write-lock during boot. Use Value: Guarantees parameter persistence over 100 years and 1M write cycles - exceeds typical medical device service life by 10×.
Automotive Body Control Module (BCM)	Smart Energy Meter Configuration
Use Scenario: Recording door lock/unlock event counters, window position limits, and mirror preset positions in 12 V automotive BCMs with 3.3 V logic rails. IC Role / Device Role / Timing Role: Low-voltage EEPROM interfaced directly to 3.3 V MCU I²C port; WP pin driven by ignition-sense circuit to disable writes when engine is off. Use Value: 1.8–5.5 V operation allows direct connection to 3.3 V domain; −40°C to +85°C rating satisfies AEC-Q100 Grade 2 ambient requirements.	Use Scenario: Storing tariff schedules, billing cycle counters, and tamper-detection logs in DIN-rail mounted smart electricity meters deployed globally. IC Role / Device Role / Timing Role: Secure configuration vault with hardware write protection enabled during firmware updates to prevent concurrent access corruption. Use Value: Full-array WP prevents accidental overwrite of revenue-critical billing data; 100-year retention ensures compliance with utility regulatory archiving mandates.

Industrial Sensor Calibration Storage

Embedded Firmware Parameter Backup

Use Scenario: Storing factory-calibrated coefficients for temperature, pressure, and humidity sensors in programmable logic controllers.

IC Role / Device Role / Timing Role: Nonvolatile configuration register holding trim values accessed at boot and updated during field recalibration.

Use Value: Eliminates need for external calibration EEPROM management logic; 16-byte page writes enable atomic coefficient set updates without partial-write corruption.

Use Scenario: Preserving user-modified settings (e.g., display brightness, communication baud rate, alarm thresholds) across power cycles in medical diagnostic equipment.

IC Role / Device Role / Timing Role: Persistent parameter store accessed via I²C during initialization and runtime; WP pin tied to system reset signal for write-lock during boot.

Use Value: Guarantees parameter persistence over 100 years and 1M write cycles - exceeds typical medical device service life by 10×.

Automotive Body Control Module (BCM)

Smart Energy Meter Configuration

Use Scenario: Recording door lock/unlock event counters, window position limits, and mirror preset positions in 12 V automotive BCMs with 3.3 V logic rails.

IC Role / Device Role / Timing Role: Low-voltage EEPROM interfaced directly to 3.3 V MCU I²C port; WP pin driven by ignition-sense circuit to disable writes when engine is off.

Use Value: 1.8–5.5 V operation allows direct connection to 3.3 V domain; −40°C to +85°C rating satisfies AEC-Q100 Grade 2 ambient requirements.

Use Scenario: Storing tariff schedules, billing cycle counters, and tamper-detection logs in DIN-rail mounted smart electricity meters deployed globally.

IC Role / Device Role / Timing Role: Secure configuration vault with hardware write protection enabled during firmware updates to prevent concurrent access corruption.

Use Value: Full-array WP prevents accidental overwrite of revenue-critical billing data; 100-year retention ensures compliance with utility regulatory archiving mandates.

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 16 Kbit size, 1.8–5.5 V, 100 kHz @ 1.8 V; identical 8-lead SOIC package; WP pin functionally equivalent.	Qualified to AEC-Q100 Grade 1 (−40°C to +125°C); supports extended temperature range for under-hood automotive use.	Select when extended temperature operation beyond +85°C is required; pinout and firmware interface are identical.
ON Semiconductor CAT24C16WI-GT3	16 Kbit, 1.7–5.5 V, 100 kHz @ 1.8 V; same SOIC-8 footprint; WP pin active-high full-array protection.	Specified for 1.7 V minimum supply - marginally better for deep-brownout resilience; lower standby current (0.5 µA typ @ 1.8 V).	Choose for ultra-low-power battery-backed systems where sub-1 µA quiescent current is critical; otherwise functionally interchangeable.

Compared with AT24C16AN-10SI-1.8-T, the M24C16-WMN6TP adds extended temperature qualification but offers no electrical advantage at +85°C, while the CAT24C16WI-GT3 lowers minimum supply voltage and standby current - both require no firmware or layout changes for drop-in replacement in industrial temperature applications.

Availability

AT24C16AN-10SI-1.8-T is available at Aetrix Electronics and suitable for industrial sensor calibration storage, embedded firmware parameter backup, and automotive body control module design requiring stable component supply across multi-year production cycles.

Supply support for AT24C16AN-10SI-1.8-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 qualification coverage.

The AT24C16A series is part of Microchip's legacy serial EEPROM portfolio, designed specifically for robust, low-power, I²C-based configuration and calibration storage in space-constrained embedded systems.

FAQ

What is the I²C address of the AT24C16AN-10SI-1.8-T?

The AT24C16AN-10SI-1.8-T uses a fixed 7-bit I²C device address of 0x50 (1010000b), with the R/W bit appended as the eighth bit. Unlike smaller family members, A0–A2 pins are no-connects, so only one AT24C16AN-10SI-1.8-T can reside on a single I²C bus segment without address conflict.

Does the AT24C16AN-10SI-1.8-T support 400 kHz I²C operation?

No - the AT24C16AN-10SI-1.8-T is rated for 100 kHz maximum clock frequency when operating at 1.8 V. While some 2.5 V/2.7 V variants of the AT24C16A support 400 kHz, the -1.8-T suffix explicitly denotes the 1.8 V optimized version with 100 kHz timing specification.

How many bytes can be written in a single page write cycle for the AT24C16AN-10SI-1.8-T?

The AT24C16AN-10SI-1.8-T supports 16-byte page writes. Its 16 Kbit memory is internally organized as 128 pages of 16 bytes each, allowing up to 16 sequential bytes to be written in one I²C transaction - significantly improving throughput over individual byte writes.

What happens to the A0, A1, and A2 pins on the AT24C16AN-10SI-1.8-T?

On the AT24C16AN-10SI-1.8-T, A0, A1, and A2 are no-connect (NC) terminals. They serve no functional purpose and must remain unconnected - unlike AT24C02A/04A/08A, these pins are not used for device addressing, and tying them to any voltage may cause undefined behavior.

Is the AT24C16AN-10SI-1.8-T compatible with 5 V I²C systems?

Yes - the AT24C16AN-10SI-1.8-T supports VCC from 1.8 V to 5.5 V and is fully compatible with 5 V I²C buses. However, SDA and SCL pins are not 5 V tolerant when VCC < 5 V; for mixed-voltage systems, level translation is required unless VCC = 5 V.

AT24C16AN-10SI-1.8-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:: 1.8V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

AT24C16AN-10SI-1.8-T FAQ

1.How can I place an order for AT24C16AN-10SI-1.8-T through Aetrix?

Please submit a Request for Quotation (RFQ) for AT24C16AN-10SI-1.8-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-1.8-T reliable?

The price and inventory of AT24C16AN-10SI-1.8-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-1.8-T is usually 5 days.

3.What payment methods are accepted for AT24C16AN-10SI-1.8-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C16AN-10SI-1.8-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AT24C16AN-10SI-1.8-T?

AT24C16AN-10SI-1.8-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AT24C16AN-10SI-1.8-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-1.8-T?

For technical support, including AT24C16AN-10SI-1.8-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C16AN-10SI-1.8-T requirements.

6.How does Aetrix verify that AT24C16AN-10SI-1.8-T is sourced from the original manufacturer or authorized distributors?

All AT24C16AN-10SI-1.8-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-1.8-T meets industry standards.

7.What is the process for return or replacement of AT24C16AN-10SI-1.8-T?

All AT24C16AN-10SI-1.8-T units undergo pre-shipment inspection (PSI). If there is an issue with AT24C16AN-10SI-1.8-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-1.8-T part is unused and in its original packaging.

Return procedure for AT24C16AN-10SI-1.8-T:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

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.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…