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25LC040AT-I/OT The Microchip Technology 25LC040AT-I/OT is a 4 Kbit Serial EEPROM. It features an SPI interface and operates at clock frequencies up to 10 MHz.
Mfr Part #:

25LC040AT-I/OT

Available from 4 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology 25LC040AT-I/OT is a 4 Kbit Serial EEPROM. It features an SPI interface and operates at clock frequencies up to 10 MHz.
✓ Total Stock: 4,846 pcs
$ Price Range: $1.24

25LC040AT-I/OT Available from 4 distributors

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Fe Components ✓
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2,109 pcs
On Request
2109 pcs On Request 1 On Request On Request On Request On Request On Request
Smaxon Electronics ✓
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1,387 pcs
On Request
1387 pcs On Request 1 On Request On Request 1450+ On Request On Request
Xingangxin ✓
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1,259 pcs
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1259 pcs On Request 1 On Request On Request On Request On Request On Request
MW.FEP S.p.A. ✓
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91 pcs
On Request
91 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

25LC040AT-I/OT Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Frequency
ESD Protection
Memory Format
Memory Interface
Memory Organization
Memory Size
Memory Type
Mounting Type
Operating Temperature
Supplier Device Package
Supplier Package
Technology
Voltage
Write Cycle Time
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25LC040AT-I/OT Description

Short technical summary and product information.

The Microchip Technology 25LC040AT-I/OT is a 4 Kbit Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) accessed via a Serial Peripheral Interface (SPI) compatible serial bus. This device operates with a supply voltage range of 2.5V to 5.5V and supports a maximum clock frequency of 10 MHz.

 

Key electrical characteristics include a maximum write current of 5 mA at 5.5V and 10 MHz, a read current of 5 mA at 5.5V and 10 MHz, and a low standby current of 5 µA at 5.5V. The memory is organized as 512 x 8 bits and supports page write mode up to 16 bytes. Erase and write cycles are self-timed with a maximum duration of 5 ms.

 

Designed for reliability, the 25LC040AT-I/OT offers an endurance of 1,000,000 erase/write cycles and data retention exceeding 200 years. It also features ESD protection greater than 4000V. The device is available in a SOT-23-6 package, suitable for surface mount applications.

 

This EEPROM includes built-in write protection mechanisms such as power-on/off data protection circuitry, a write enable latch, and a dedicated write-protect pin. Block write protection allows for protecting none, 1/4, 1/2, or the entire array. The operating temperature range is -40°C to 85°C.

25LC040AT-I/OT Quick Information

Product Type: Serial EEPROM
Canonical Name: 25LC040AT-I/OT Serial EEPROM
Subcategory: Serial EEPROM

25LC040AT-I/OT Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

25LC040AT-I/OT Estimated Pricing

Qty Low High
1+ $1.24 $1.24

Estimated market price range - modelled values for guidance only, not live distributor offers.

25LC040AT-I/OT Features

  • 4 Kbit Serial EEPROM with SPI interface.
  • Operates from 2.5V to 5.5V supply voltage.
  • Maximum clock frequency of 10 MHz.
  • Reliable with 1M write cycles and 200+ years retention.
  • Compact SOT-23-6 surface mount package.

25LC040AT-I/OT Applications

  • Used for data storage in embedded systems.
  • Suitable for configuration data retention.
  • Ideal for small memory applications.
  • Applications requiring SPI communication.

25LC040AT-I/OT FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the 25LC040AT-I/OT?

The operating voltage range is 2.5V to 5.5V.

What package does the 25LC040AT-I/OT come in?

It comes in a 6-pin SOT-23-6 surface mount package.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C.

What is the memory size of the 25LC040AT-I/OT?

4Kbit (512 x 8).

What interface does it use?

SPI (Serial Peripheral Interface).

What is the endurance of the 25LC040AT-I/OT?

1,000,000 erase/write cycles.

What is the data retention?

Over 200 years.

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