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 24AA00T-I/SN

Name: 24AA00T-I/SN
Brand: Microchip Technology
SKU: 24AA00T-I/SN
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 24AA00T-I/SN

Manufacturer:: Microchip Technology

Category:: Memory

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

Datasheet:: 24AA00T-I/SN.pdf

Description:: IC EEPROM 128BIT I2C 8SOIC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,664

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

Product details

Overview

24AA00T-I/SN from Microchip Technology Inc. is a 128-bit (16 × 8) I²C-compatible serial EEPROM designed for low-voltage embedded storage of calibration data, device IDs, and manufacturing parameters. It operates from 1.8 V to 5.5 V, draws only 500 µA typical read current and 100 nA typical standby current, and supports 100 kHz/400 kHz clock rates in industrial temperature range (–40°C to +85°C).

For engineers reviewing the 24AA00T-I/SN datasheet, 24AA00T-I/SN pinout, 24AA00T-I/SN application, or 24AA00T-I/SN equivalent, key selection criteria include ultra-low standby power, Schmitt-trigger noise immunity on SDA/SCL, self-timed 3 ms write cycle, 1 million erase/write endurance, and compatibility with standard I²C masters across 1.8–5.5 V supply.

Technical Context

The 24AA00T-I/SN implements a slave-only I²C interface with fixed 4-bit device code '1010' and three don't-care address bits, enabling up to eight devices on one bus. Its internal address pointer auto-increments during sequential reads and retains position after random or current-address access.

It features integrated Schmitt-trigger inputs and input filtering (50 ns spike suppression), slope-controlled outputs to minimize ground bounce, and a V_CC threshold detector that disables write logic below 1.5 V. Write cycles are fully self-timed and do not require external timing control.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory size	128 bits (16 words × 8 bits); sufficient for small configuration or identity storage without over-provisioning.
Supply voltage	1.8 V to 5.5 V; enables direct interfacing with 1.8 V, 3.3 V, and 5 V microcontrollers without level shifters.
I²C clock rate	Up to 400 kHz at V_CC ≥ 4.5 V; supports faster firmware updates and host polling in compact systems.
Write cycle time	3 ms typical; defines minimum interval between successive byte writes and impacts system latency during parameter save.
Endurance	1 million erase/write cycles; ensures reliable field operation over >10 years in high-frequency logging applications.
Data retention	200 years at +25°C; guarantees long-term integrity of factory-programmed identifiers or calibration coefficients.
Standby current	100 nA typical; critical for battery-powered IoT sensors and wearables where quiescent power dominates lifetime.

Pinout & Package

24AA00T-I/SN is supplied in an 8-pin SOIC package (3.90 mm body width, JEDEC MS-012). The package includes exposed pad option (not electrically connected by default) and RoHS-compliant matte tin plating.

Pin	Circuit Role	Design Meaning
1	SCL	Serial clock input; master-generated synchronous edge for all data transfers; requires external pull-up resistor.
2	SDA	Bidirectional open-drain data line; carries addresses, commands, and memory contents; requires external pull-up.
3	V_SS	Ground reference; must be connected directly to system common return to ensure noise margin and ESD path.
4	V_CC	Power supply input; accepts 1.8–5.5 V; internal regulator enables stable EEPROM operation across wide voltage range.
5–8	NC	No-connect pins; left unconnected per design; no internal circuitry or bonding; must remain floating.

Key Features

Feature	Design Value
Low-voltage operation	Functional down to 1.8 V - eliminates need for dedicated 3.3 V LDO in 1.8 V MCU systems.
Schmitt-trigger inputs	Hysteresis ≥0.05 V_CC - rejects noise spikes up to 50 ns, improving robustness on shared PCB buses.
Output slope control	Controlled rise/fall times - prevents ground bounce-induced glitches during SDA transitions.
Factory programming	Available pre-programmed with customer-specific data - reduces post-solder programming steps in high-volume assembly.
Pb-free & RoHS	Matte tin (Sn) finish per JEDEC - meets global environmental compliance without requiring special reflow profiles.

Applications

Smart Sensor Calibration	Industrial PLC Configuration
Use Scenario: Storing sensor offset/gain coefficients and temperature compensation tables during final test. IC Role / Device Role / Timing Role: Nonvolatile parameter store accessed once at power-up; no real-time timing constraints. Use Value: Enables plug-and-play sensor replacement with zero recalibration; leverages 200-year data retention for field longevity.	Use Scenario: Holding user-defined I/O mapping, alarm thresholds, and communication settings in modular controllers. IC Role / Device Role / Timing Role: Slave EEPROM on controller's I²C bus; updated infrequently but must survive brownouts. Use Value: Guarantees settings persistence across 1M+ power cycles; 100 nA standby minimizes backup battery drain.
Medical Device ID Storage	Consumer Appliance Firmware Patch
Use Scenario: Securing unique serial number, manufacturing date, and regulatory certification codes in portable diagnostics gear. IC Role / Device Role / Timing Role: Read-only identity register accessed during boot sequence; write-protected after programming. Use Value: Meets FDA traceability requirements via factory-programmable memory; ESD >4 kV protects against handling damage.	Use Scenario: Storing minor firmware patches or UI language strings in white-goods controllers where flash update is impractical. IC Role / Device Role / Timing Role: Secondary nonvolatile storage accessed via I²C during maintenance mode; write-enabled only during service. Use Value: Avoids full MCU reflash; 3 ms write time enables fast patch deployment; 400 kHz support speeds field updates.

Smart Sensor Calibration

Industrial PLC Configuration

Use Scenario: Storing sensor offset/gain coefficients and temperature compensation tables during final test.

IC Role / Device Role / Timing Role: Nonvolatile parameter store accessed once at power-up; no real-time timing constraints.

Use Value: Enables plug-and-play sensor replacement with zero recalibration; leverages 200-year data retention for field longevity.

Use Scenario: Holding user-defined I/O mapping, alarm thresholds, and communication settings in modular controllers.

IC Role / Device Role / Timing Role: Slave EEPROM on controller's I²C bus; updated infrequently but must survive brownouts.

Use Value: Guarantees settings persistence across 1M+ power cycles; 100 nA standby minimizes backup battery drain.

Medical Device ID Storage

Consumer Appliance Firmware Patch

Use Scenario: Securing unique serial number, manufacturing date, and regulatory certification codes in portable diagnostics gear.

IC Role / Device Role / Timing Role: Read-only identity register accessed during boot sequence; write-protected after programming.

Use Value: Meets FDA traceability requirements via factory-programmable memory; ESD >4 kV protects against handling damage.

Use Scenario: Storing minor firmware patches or UI language strings in white-goods controllers where flash update is impractical.

IC Role / Device Role / Timing Role: Secondary nonvolatile storage accessed via I²C during maintenance mode; write-enabled only during service.

Use Value: Avoids full MCU reflash; 3 ms write time enables fast patch deployment; 400 kHz support speeds field updates.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
24LC00T-I/SN	Minimum V_CC = 2.5 V; otherwise identical pinout, timing, and memory organization.	Not suitable for 1.8 V systems; acceptable where 3.3 V or 5 V supply is guaranteed.	Select when higher V_CC margin is preferred and 1.8 V operation is unnecessary.
AT24C01C-SSHM-T	1 Kbit capacity (128 bytes); same 1.7–5.5 V range, 400 kHz, and SOIC-8 package; AEC-Q200 qualified.	Offers 8× more memory; suited for applications needing extended configuration space or firmware metadata.	Choose when future scalability or automotive qualification is required, accepting higher cost and density.

Compared with 24AA00T-I/SN, the 24LC00T-I/SN trades 1.8 V compatibility for tighter V_CC regulation margin, while AT24C01C-SSHM-T provides greater storage and automotive qualification at the cost of increased footprint and price - making 24AA00T-I/SN optimal for minimal-footprint, ultra-low-power 1.8 V designs.

Availability

24AA00T-I/SN is available at Aetrix Electronics and suitable for smart sensor calibration, industrial PLC configuration, and medical device ID storage requiring stable component supply across extended product lifecycles.

Supply support for 24AA00T-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 microcontrollers, analog components, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.

The 24XX00 family was engineered specifically for ultra-low-power, space-constrained embedded systems needing minimal nonvolatile storage - targeting cost-sensitive, battery-operated, and industrial control applications.

FAQ

What is the minimum operating voltage for the 24AA00T-I/SN?

The 24AA00T-I/SN operates down to 1.8 V, enabling direct integration with 1.8 V microcontrollers and eliminating the need for voltage translation. Below 1.5 V, its internal write logic is disabled by a V_CC threshold detector to prevent corrupted writes - a safeguard confirmed in DS20001178J-page 8.

Does the 24AA00T-I/SN support standard I²C addressing?

Yes, the 24AA00T-I/SN uses a fixed 4-bit device code '1010' followed by three don't-care bits, resulting in a 7-bit slave address of 0x50 (1010000b) when R/W = 0. This matches standard I²C protocol and allows up to eight devices on one bus - as defined in DS20001178J-page 7.

How many write cycles can the 24AA00T-I/SN endure?

The 24AA00T-I/SN is rated for more than 1 million erase/write cycles, verified through characterization (not 100% tested per DS20001178J-page 3, Note 4). This endurance supports daily parameter updates for over 27 years - sufficient for most industrial and consumer applications.

Is the 24AA00T-I/SN compatible with 400 kHz I²C operation?

Yes, the 24AA00T-I/SN supports 400 kHz clock frequency when V_CC is 4.5 V to 5.5 V, as specified in DS20001178J-page 3, Table 1-2. At lower voltages (1.8–4.5 V), maximum clock rate is 100 kHz - a hard limit enforced by internal timing margins.

What is the purpose of the NC pins on the 24AA00T-I/SN SOIC package?

Pins 1–3 and 7 of the 24AA00T-I/SN SOIC package are No-Connect (NC) - physically present but internally unconnected. They must remain unconnected in layout; routing traces or applying solder paste to them may cause mechanical stress or unintended coupling, per DS20001178J-page 4 Pin Function Table.

24AA00T-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:: 128bit

Memory Organization:: 16 x 8

Memory Interface:: I2C

Clock Frequency:: 400 kHz

Write Cycle Time - Word, Page:: 4ms

Access Time:: 3500 ns

Voltage - Supply:: 1.8V ~ 5.5V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

24AA00T-I/SN FAQ

1.How can I place an order for 24AA00T-I/SN through Aetrix?

Please submit a Request for Quotation (RFQ) for 24AA00T-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 24AA00T-I/SN reliable?

The price and inventory of 24AA00T-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 24AA00T-I/SN is usually 5 days.

3.What payment methods are accepted for 24AA00T-I/SN?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24AA00T-I/SN transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 24AA00T-I/SN?

24AA00T-I/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 24AA00T-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 24AA00T-I/SN?

For technical support, including 24AA00T-I/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24AA00T-I/SN requirements.

6.How does Aetrix verify that 24AA00T-I/SN is sourced from the original manufacturer or authorized distributors?

All 24AA00T-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 24AA00T-I/SN meets industry standards.

7.What is the process for return or replacement of 24AA00T-I/SN?

All 24AA00T-I/SN units undergo pre-shipment inspection (PSI). If there is an issue with 24AA00T-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 24AA00T-I/SN part is unused and in its original packaging.

Return procedure for 24AA00T-I/SN:

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…