AT24C256BN-SH-T The Microchip Technology AT24C256BN-SH-T is a 256Kbit serial EEPROM device utilizing an I2C interface. It operates with a voltage range of 1.8V to 5.5V and supports clock frequencies up to 1 MHz.
Mfr Part #:

AT24C256BN-SH-T

Available from 2 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology AT24C256BN-SH-T is a 256Kbit serial EEPROM device utilizing an I2C interface. It operates with a voltage range of 1.8V to 5.5V and supports clock frequencies up to 1 MHz.
Total Stock: 204,000 pcs
$ Price Range: $1.24

AT24C256BN-SH-T Available from 2 distributors

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200,000 pcs
200000 pcs On Request 1 On Request On Request On Request On Request On Request
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4,000 pcs
4000 pcs On Request 1 On Request On Request On Request On Request On Request

AT24C256BN-SH-T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Access Time
Clock Frequency
Halogen Free
Memory Format
Memory Interface
Memory Organization
Memory Size
Memory Type
Mounting Type
Operating Temperature
Operating Voltage
SVHC Present
Supplier Device Package
Technology
Voltage
Write Cycle Time

AT24C256BN-SH-T Description

Short technical summary and product information.

The AT24C256BN-SH-T is a 256Kbit serial electrically erasable and programmable read-only memory (EEPROM) from Microchip Technology. It is organized as 32,768 words of 8 bits each and features a two-wire serial interface compatible with I²C protocols. This device supports low-voltage and standard-voltage operation, ranging from 1.8V to 5.5V, making it suitable for a wide array of industrial and commercial applications where power efficiency is crucial.

 

Key electrical specifications include a maximum clock frequency of 1 MHz (at 5.0V, 2.7V, 2.5V) and 400 kHz (at 1.8V), with an access time of 550 ns. The EEPROM supports a 64-byte page write mode and has a self-timed write cycle of 5 ms maximum. Reliability is high, with an endurance of one million write cycles and data retention for 40 years.

 

The AT24C256BN-SH-T is available in an 8-lead SOIC package, designed for surface mounting. It operates within a temperature range of -40°C to 85°C (TA). The device also includes a write protect pin for hardware and software data protection, and its inputs feature Schmitt trigger filtering for noise suppression.

AT24C256BN-SH-T Quick Information

Product Type: EEPROM
Series: AT24C256B
Canonical Name: AT24C256BN-SH-T EEPROM
Subcategory: Serial EEPROM

AT24C256BN-SH-T Compliance

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

AT24C256BN-SH-T Estimated Pricing

Qty Low High
1+ $1.24 $1.24

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

AT24C256BN-SH-T Features

  • 256Kbit serial EEPROM memory.
  • I2C interface with 1 MHz clock speed.
  • Wide operating voltage from 1.8V to 5.5V.
  • Surface mount 8-SOIC package.
  • 40 years data retention and high endurance.

AT24C256BN-SH-T Applications

  • Ideal for low-power embedded systems.
  • Suitable for industrial control applications.
  • Used in consumer electronics devices.
  • Data logging in portable instruments.
  • Configuration storage in microcontrollers.

AT24C256BN-SH-T FAQs

7 frequently asked questions generated from this part’s specifications.
What is the memory size of the AT24C256BN-SH-T?

The AT24C256BN-SH-T has a memory size of 256Kbit.

What is the operating voltage range for this EEPROM?

The operating voltage range for the AT24C256BN-SH-T is 1.8V to 5.5V.

What is the maximum clock frequency supported?

The device supports a maximum clock frequency of 1 MHz.

What type of interface does the AT24C256BN-SH-T use?

It uses an I²C interface.

What is the package type and mounting method?

It is an 8-SOIC package designed for surface mounting.

What is the operating temperature range?

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

What is the data retention period?

The data retention period is 40 years.

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