24AA01T-I/OT Microchip Integrated Circuit (SOT23 (5-Pin)) In Stock
The 24AA01T-I/OT is a 1 Kb (128 × 8) I2C serial EEPROM from Microchip operating from 1.8 V to 5.5 V in a compact SOT-23-5 package. It delivers 400 kHz fast-mode I2C, byte and page write modes, and 1 million erase/write cycle endurance. Available from stock worldwide for low-power portable and industrial designs.
- Manufacturer
- Microchip
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- 24AA01T-I/OT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1500(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1 Kb EEPROM organized as 128 × 8 bits with 400 kHz I2C fast-mode interface
- Wide supply voltage range of 1.8 V to 5.5 V for compatibility with battery-powered and 5 V systems
- Ultra-compact SOT-23-5 package saving board space in size-critical portable designs
- 1 million erase/write cycle endurance with 200-year data retention for long-life applications
- Industrial temperature rating for reliable operation from -40°C to +85°C
Applications
The 24AA01T-I/OT is widely used in portable consumer electronics for storing user preferences, calibration constants, and device configuration data thanks to its 1.8 V compatibility and tiny SOT-23-5 footprint. Industrial sensor modules and smart metering equipment deploy it for tamper-resistant logging of serial numbers and factory trim values. Medical wearables and IoT edge nodes also rely on its low-power write cycle and robust I2C interface to retain critical parameters across power-off events.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-5 |
| Factory Lead Time | 6Weeks |
| Date Of Intro | 1991-01-01 |
| YTEOL | 9 |
| Memory IC Type | EEPROM |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Terminal Finish | Matte Tin (Sn) |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 24AA01T-I/OT:
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Frequently Asked Questions
What voltage range does the 24AA01T-I/OT support, and can it interface directly with a 1.8 V microcontroller?
The 24AA01T-I/OT operates from 1.8 V to 5.5 V, making it directly compatible with 1.8 V, 3.3 V, and 5 V microcontrollers without a level-shifter. This broad range suits battery-powered wearables and IoT nodes that need reliable non-volatile storage at minimal supply voltage.
How many write cycles does the 24AA01T-I/OT endure, and what data retention can designers expect?
The 24AA01T-I/OT is rated for 1 million erase/write cycles per byte and guarantees a data retention period of at least 200 years at 25°C, far exceeding the requirements of calibration logging, user-preference storage, and serial-number tracking in consumer and industrial products.
Which I2C clock speeds does the 24AA01T-I/OT support, and how does page-write mode reduce bus traffic?
The device supports I2C Standard mode at 100 kHz and Fast mode at 400 kHz. Its 8-byte page-write buffer allows up to 8 bytes to be sent in a single I2C transaction, reducing bus overhead and total programming time by up to 8× compared to byte-by-byte writes.
What operating temperature range does the 24AA01T-I/OT cover, and is it suited for industrial environments?
The 24AA01T-I/OT covers the industrial temperature range of -40°C to +85°C, meeting the thermal demands of outdoor sensors, factory automation modules, and automotive accessories. Its Matte Tin finish and SOT-23-5 package also survive standard 260°C peak reflow temperatures during assembly.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.1800 | $0.18 |
| 3000+ | $0.1500 | $450.00 |
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