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

Microchip Technology 24AA014T-I/SN

Name: 24AA014T-I/SN
Brand: Microchip Technology
SKU: 24AA014T-I/SN
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 24AA014T-I/SN

Manufacturer:: Microchip Technology

Category:: Memory

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

Datasheet:: 24AA014T-I/SN.pdf

Description:: IC EEPROM 1KBIT I2C 400KHZ 8SOIC

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Product details

Overview

24AA014T-I/SN from Microchip Technology Inc. is a 1 Kbit (128 × 8) I²C-compatible serial EEPROM with single-supply operation down to 1.7V, hardware write protection, and 16-byte page write capability. It supports up to 400 kHz clock frequency at V_CC ≥ 1.8V and delivers typical active current of 1 mA and standby current of 1 µA at 5.5V - enabling low-power embedded data logging in industrial sensor nodes.

For engineers reviewing the 24AA014T-I/SN datasheet, 24AA014T-I/SN pinout, 24AA014T-I/SN application, or 24AA014T-I/SN equivalent, key selection criteria include its 1.7V–5.5V operating range, 8-lead SOIC package with exposed pad (T/SN suffix), industrial temperature grade (−40°C to +85°C), and hardware WP pin for non-volatile memory protection without firmware overhead.

Technical Context

The 24AA014T-I/SN implements a standard two-wire I²C interface with Schmitt-trigger inputs on SDA and SCL, supporting both 100 kHz (V_CC < 2.5V) and 400 kHz (V_CC ≥ 1.8V) operation. Its internal address counter enables sequential reads across the full 128-byte array with automatic rollover from 0x7F to 0x00.

Write operations use an on-chip 16-byte page buffer with self-timed erase-and-write cycles completing in ≤5 ms. Hardware write protection is enforced via the dedicated WP pin - tied to V_SS for enable, V_CC for full-array lockout - independent of I²C command execution.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory size	1 Kbit (128 × 8-bit), organized as single block - simplifies address management and eliminates bank switching logic.
Supply voltage	1.7V to 5.5V - enables direct interfacing with 1.8V, 3.3V, and 5V microcontrollers without level shifters.
Interface	I²C-compatible 2-wire bus with 7-bit slave address (1010xxxR/W) - integrates into existing I²C systems without protocol translation.
Write endurance	1,000,000 erase/write cycles - supports frequent calibration storage or event logging in field-deployed equipment.
Data retention	>200 years at +25°C - ensures long-term validity of stored configuration or calibration data without refresh.
Write cycle time	≤5 ms max (byte or page) - allows deterministic timing budgeting for firmware write-handling and ACK polling.
ESD protection	>4,000V HBM - enhances robustness in handling-sensitive industrial assembly and field service environments.

Pinout & Package

24AA014T-I/SN is supplied in an 8-lead SOIC package (3.90 mm wide, "SN" suffix) with exposed thermal pad. Pin 1 is laser-marked; the exposed pad may be connected to V_SS or left floating per PCB layout requirements.

Pin/Terminal	Circuit Role	Design Meaning
A0	Chip address input	LSB of 3-bit hardware slave address - sets device address bits A0–A2 for multi-drop I²C bus (up to 8 devices).
A1	Chip address input	Middle bit of 3-bit hardware slave address - enables unique addressing when multiple 24AA014T-I/SN share one bus.
A2	Chip address input	MSB of 3-bit hardware slave address - required for contiguous 8 Kbit expansion across eight devices.
V_SS	Ground reference	Return path for all internal circuitry and I/O - must be low-impedance connection to system ground plane.
SDA	Serial data I/O	Open-drain bidirectional bus line - requires external pull-up resistor (2 kΩ for 400 kHz, 10 kΩ for 100 kHz).
SCL	Serial clock input	Master-generated clock synchronizing all data transfers - determines maximum I²C throughput and timing margins.
WP	Write-protect control	Hardware lockout: tied to V_CC disables all writes while preserving read access - no firmware dependency.
V_CC	Power supply	Primary power input (1.7–5.5V) - powers EEPROM core, interface logic, and high-voltage generator for write/erase.

Key Features

Feature	Design Value
Low-voltage operation	Functional down to 1.7V - enables direct integration with battery-backed or energy-harvesting systems.
Page write buffer	16-byte internal buffer - reduces I²C transaction count by up to 16× versus byte-write, improving bus efficiency.
Hardware write protection	Dedicated WP pin - prevents accidental or malicious overwrites without software intervention or register access.
Extended temperature range	Industrial grade (−40°C to +85°C) - qualified for deployment in factory automation, HVAC, and outdoor metering.
Pb-free & RoHS compliant	Matte tin (Sn) lead finish - meets global environmental compliance requirements for commercial and industrial manufacturing.

Applications

Industrial Sensor Calibration Storage	Medical Device Configuration Memory
Use Scenario: Storing factory-calibrated offset/gain coefficients for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Non-volatile parameter storage accessed during power-up initialization and runtime recalibration. Use Value: Enables traceable, tamper-resistant calibration data retention across 200+ years - eliminating need for external backup power or supercapacitors.	Use Scenario: Holding user-configurable alarm thresholds and operational modes in portable patient monitors. IC Role / Device Role / Timing Role: I²C slave memory storing persistent settings updated infrequently but read on every boot. Use Value: 1 µA standby current extends battery life in battery-operated medical devices; WP pin prevents unintended writes during ESD events.
Smart Energy Meter Firmware Patch Log	Automotive Body Control Module NVM
Use Scenario: Recording firmware update status and patch version history in utility-grade electricity meters. IC Role / Device Role / Timing Role: Write-once log storage with 1M-cycle endurance - tracks critical field updates without wear leveling. Use Value: 5 ms max write cycle enables deterministic firmware update sequencing; 4 kV ESD rating withstands harsh meter installation environments.	Use Scenario: Saving seat/mirror position presets and lighting profiles in automotive interior control units. IC Role / Device Role / Timing Role: Low-voltage (1.7V) EEPROM retaining user preferences during stop-start engine cycles. Use Value: 1.7V operation ensures reliable write capability even during cranking-induced brownouts; SOIC package supports automated optical inspection.

Industrial Sensor Calibration Storage

Medical Device Configuration Memory

Use Scenario: Storing factory-calibrated offset/gain coefficients for analog sensor front-ends in programmable logic controllers.

IC Role / Device Role / Timing Role: Non-volatile parameter storage accessed during power-up initialization and runtime recalibration.

Use Value: Enables traceable, tamper-resistant calibration data retention across 200+ years - eliminating need for external backup power or supercapacitors.

Use Scenario: Holding user-configurable alarm thresholds and operational modes in portable patient monitors.

IC Role / Device Role / Timing Role: I²C slave memory storing persistent settings updated infrequently but read on every boot.

Use Value: 1 µA standby current extends battery life in battery-operated medical devices; WP pin prevents unintended writes during ESD events.

Smart Energy Meter Firmware Patch Log

Automotive Body Control Module NVM

Use Scenario: Recording firmware update status and patch version history in utility-grade electricity meters.

IC Role / Device Role / Timing Role: Write-once log storage with 1M-cycle endurance - tracks critical field updates without wear leveling.

Use Value: 5 ms max write cycle enables deterministic firmware update sequencing; 4 kV ESD rating withstands harsh meter installation environments.

Use Scenario: Saving seat/mirror position presets and lighting profiles in automotive interior control units.

IC Role / Device Role / Timing Role: Low-voltage (1.7V) EEPROM retaining user preferences during stop-start engine cycles.

Use Value: 1.7V operation ensures reliable write capability even during cranking-induced brownouts; SOIC package supports automated optical inspection.

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial EEPROM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
24LC014T-I/SN	Requires minimum 2.5V V_CC; otherwise identical pinout, timing, and memory map.	Not suitable for 1.8V-only systems; compatible where host operates ≥2.5V.	Select only if system V_CC never drops below 2.5V - avoids potential undervoltage reset during brownout.
AT24C01D-SSHM-T	1.7V–5.5V operation, same 1 Kbit density, but uses different I²C address scheme (1010xxx) and lacks hardware WP pin.	Requires software-controlled write protection; no physical lockout against accidental writes.	Choose when board space permits software-based protection and legacy AT24C-series compatibility is required.

Compared with 24LC014T-I/SN, the 24AA014T-I/SN supports lower-voltage operation critical for modern ultra-low-power designs; versus AT24C01D-SSHM-T, it provides hardware-level write security essential for safety-critical configuration storage.

Availability

24AA014T-I/SN is available at Aetrix Electronics and suitable for industrial sensor calibration storage, medical device configuration memory, and smart energy meter firmware patch logging requiring stable component supply and long-term lifecycle assurance.

Supply support for 24AA014T-I/SN 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 Inc. is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions, headquartered in Chandler, Arizona.

The 24AA014T-I/SN belongs to Microchip's 24AAxx family of I²C EEPROMs, designed specifically for cost-sensitive, low-power embedded systems requiring reliable non-volatile storage with minimal external components.

FAQ

What is the minimum operating voltage for the 24AA014T-I/SN?

The 24AA014T-I/SN operates down to 1.7V, making it compatible with 1.8V logic systems and battery-powered applications where supply voltage may dip during peak load. This is a key differentiator from the 24LC014 series, which requires a minimum of 2.5V. The 24AA014T-I/SN maintains full I²C functionality-including 400 kHz operation-at 1.8V and above.

Does the 24AA014T-I/SN have hardware write protection?

Yes, the 24AA014T-I/SN includes a dedicated Write-Protect (WP) pin that provides hardware-level lockout of the entire memory array when pulled high to V_CC. This feature operates independently of I²C commands and prevents accidental or malicious writes without requiring firmware intervention. The 24AA014T-I/SN retains full read capability even when WP is asserted.

What package type does the 24AA014T-I/SN use?

The 24AA014T-I/SN uses an 8-lead SOIC package (3.90 mm wide) with the "SN" suffix designation and an exposed thermal pad. The "T" in the part number indicates tape-and-reel packaging, and "I" denotes industrial temperature grade (−40°C to +85°C). Pin 1 is laser-marked for orientation identification on the top surface.

How many devices can share the same I²C bus with the 24AA014T-I/SN?

Up to eight 24AA014T-I/SN devices can be connected to a single I²C bus using the A0, A1, and A2 address pins to configure unique 3-bit hardware addresses. Each device responds only to its assigned 7-bit slave address (1010xxxR/W), enabling scalable memory expansion up to 8 Kbits without additional address decoding logic.

What is the maximum write cycle time for the 24AA014T-I/SN?

The maximum write cycle time for the 24AA014T-I/SN is 5 ms for both byte and page writes. This value is guaranteed across the full industrial temperature range and supply voltage (1.7V–5.5V). During this period, the device does not acknowledge I²C commands - a behavior leveraged in ACK polling to detect write completion without fixed delays.

24AA014T-I/SN Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: Verified

Memory Type:: Non-Volatile

Memory Format:: EEPROM

Technology:: EEPROM

Memory Size:: 1Kbit

Memory Organization:: 128 x 8

Memory Interface:: I2C

Clock Frequency:: 400 kHz

Write Cycle Time - Word, Page:: 5ms

Access Time:: 900 ns

Voltage - Supply:: 1.7V ~ 5.5V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

24AA014T-I/SN FAQ

1.How can I place an order for 24AA014T-I/SN through Aetrix?

Please submit a Request for Quotation (RFQ) for 24AA014T-I/SN 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 24AA014T-I/SN reliable?

The price and inventory of 24AA014T-I/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24AA014T-I/SN is usually 5 days.

3.What payment methods are accepted for 24AA014T-I/SN?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24AA014T-I/SN transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 24AA014T-I/SN?

24AA014T-I/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 24AA014T-I/SN 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 24AA014T-I/SN?

For technical support, including 24AA014T-I/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24AA014T-I/SN requirements.

6.How does Aetrix verify that 24AA014T-I/SN is sourced from the original manufacturer or authorized distributors?

All 24AA014T-I/SN 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 24AA014T-I/SN meets industry standards.

7.What is the process for return or replacement of 24AA014T-I/SN?

All 24AA014T-I/SN units undergo pre-shipment inspection (PSI). If there is an issue with 24AA014T-I/SN, 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 24AA014T-I/SN part is unused and in its original packaging.

Return procedure for 24AA014T-I/SN:

1.Submit a request within 90 days.

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

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