24LC32AT-I/OT Microchip Integrated Circuit (SOT23 (5-Pin)) In Stock
The 24LC32AT-I/OT is a 32Kbit (4K x 8) I2C serial EEPROM from Microchip, operating at 2.5V to 5.5V with up to 400kHz Fast Mode communication and 1 million write/erase cycle endurance. It is available in an ultra-compact 5-pin SOT-23 package rated for industrial -40 to 85 degrees C use. In stock from authorized distributors with worldwide shipping.
- Manufacturer
- Microchip
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- 24LC32AT-I/OT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1457(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of 24LC32AT-I/OT?
- 32Kbit (4KB) I2C EEPROM in tiny 5-pin SOT-23 package enables non-volatile storage in the smallest embedded designs
- 1 million write/erase cycle endurance with 200-year data retention provides reliable long-term configuration and data storage
- 400kHz Fast Mode I2C interface (control byte 1010000R) for quick access with fixed I2C address reducing bus conflicts
- Wide 2.5V to 5.5V operating voltage range compatible with 3.3V and 5V microcontroller systems without level shifting
- Industrial temperature rating of -40 to 85 degrees C suits demanding environments in automation and instrumentation
What is 24LC32AT-I/OT used for?
The 24LC32AT-I/OT is used for storing non-volatile configuration data, device identity, and calibration coefficients in space-constrained embedded systems such as IoT sensor nodes, wearables, and RFID modules. Its tiny SOT-23 footprint and 2.5V compatibility make it an ideal companion for low-power microcontrollers in battery-operated consumer and industrial devices. Medical instrumentation, smart power meters, and handheld test equipment rely on its high endurance and industrial temperature rating for dependable field operation.
What are the specifications of 24LC32AT-I/OT?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-5 |
| Factory Lead Time | 23Weeks |
| YTEOL | 8 |
| Clock Frequency-Max (fCLK) | 0.4MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| I2C Control Byte | 1010000R |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Memory Density | 32768bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Words | 4096words |
| Number of Words Code | 4000 |
| Operating Mode | SYNCHRONOUS |
| Organization | 4KX8 |
| Output Characteristics | OPEN-DRAIN |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | 260 |
| Programming Voltage | 5V |
| Qualification Status | Not Qualified |
| Serial Bus Type | I2C |
| Standby Current-Max | 0.000001A |
| Supply Current-Max | 0.003mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Write Cycle Time-Max (tWC) | 5ms |
| Write Protection | HARDWARE |
| 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 | Malaysia, Thailand |
Where can I find the 24LC32AT-I/OT datasheet?
24LC32AT-I/OT Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for 24LC32AT-I/OT?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the storage capacity of the 24LC32AT-I/OT?
It provides 32Kbits (4,096 bytes) of non-volatile EEPROM storage organized as 4K x 8-bit words, which is well suited for configuration parameters, calibration tables, and small data logs in embedded applications.
What operating voltage range does the 24LC32AT-I/OT support?
The 24LC32AT-I/OT operates from 2.5V to 5.5V, making it compatible with both 3.3V and 5V microcontroller I/O without additional level translation circuitry.
What I2C address does the 24LC32AT-I/OT use?
It uses a fixed I2C control byte of 1010000R, meaning only one device can be placed on a single I2C bus without address conflicts; for multi-device configurations requiring more than one EEPROM, the 24LC256 with configurable address pins is recommended.
What package is the 24LC32AT-I/OT available in?
It comes in a 5-pin SOT-23 surface-mount package, one of the smallest standard IC packages available, making it ideal for size-critical designs in wearables, hearing aids, and miniature sensor modules.
How durable is the 24LC32AT-I/OT for frequent write operations?
The device is rated for a minimum of 1 million write/erase cycles per memory location and guarantees at least 200 years of data retention after the last write, ensuring reliable storage even in applications with frequent data updates.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.1457 | $0.15 |
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