AT24C256BN-SH-T

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AT24C256BN-SH-T

IC EEPROM 256KBIT I2C 1MHZ 8SOIC

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사양

Part Status Obsolete
Base Product Number AT24C256
DigiKey Programmable Not Verified
Memory Type Non-Volatile
Memory Format EEPROM
Technology EEPROM
Memory Size 256Kbit
Memory Organization 32K x 8
Memory Interface I2C
Clock Frequency 1 MHz
Write Cycle Time - Word, Page 5ms
Voltage - Supply 1.8V ~ 5.5V
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Packaging Tape & Reel (TR)
Access Time 550 ns

개요

Description

The AT24C256BN-SH-T is a type of EEPROM (Electrically Erasable Programmable Read-Only Memory) from Microchip Technology. It features a 256-Kilobit (32KB) memory, organized as 32,768 words of 8 bits each. This non-volatile memory device is designed for easy integration into a variety of applications, providing reliable data storage that retains information even when powered off.
Key features include an I2C (Inter-Integrated Circuit) interface, which simplifies connectivity with other microcontrollers and devices, and supports data transfer speeds of up to 1 MHz in Fast Mode Plus. The device operates over a wide voltage range (1.7V to 5.5V), making it versatile for use in different systems.
The AT24C256BN-SH-T is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) form factor, which is compact and suitable for surface mounting on PCBs (Printed Circuit Boards). This memory chip is commonly used in consumer electronics, automotive systems, industrial applications, and more, where reliable data storage is essential. Its robust design ensures data integrity and durability, even in demanding environments.

Features

The AT24C256BN-SH-T is a 256-Kbit electrically erasable programmable read-only memory (EEPROM) by Microchip Technology. Key features include:
1. Storage Capacity: It offers 32,768 bytes (256 Kbits) of storage.

2. Interface: Utilizes an I2C (Inter-Integrated Circuit) interface for communication, supporting standard (100 kHz), fast (400 kHz), and fast-plus (1 MHz) modes.
3. Voltage Range: Operates over a wide voltage range from 1.7V to 5.5V, making it suitable for battery-operated devices.
4. Data Retention and Endurance: Offers a data retention capability of over 100 years and supports more than 1 million write cycles per byte.
5. Package: Available in an 8-lead SOIC package, making it compact and suitable for various applications.
6. Write Protection: Includes a hardware write-protection feature for the entire memory, ensuring data integrity.
7. Low Power Consumption: Designed for low power consumption, ideal for energy-efficient applications.
8. Operating Temperature: Functions effectively across a temperature range of -40°C to +85°C.
These features make the AT24C256BN-SH-T suitable for use in consumer electronics, industrial applications, and other environments requiring reliable EEPROM storage.

Package

The AT24C256BN-SH-T is a type of EEPROM with a SOIC-8 (Small Outline Integrated Circuit) package. It features 256Kb of memory and is designed for surface-mount applications. The "T" indicates it is supplied in tape and reel packaging, suitable for automated assembly processes.

Pinout

The AT24C256BN-SH-T is a 256-Kilobit (32K x 8) serial EEPROM with an I²C interface. It typically comes in an 8-pin package. Here’s a brief overview of its pin functions:
1. A0, A1, A2: These are address pins used for device selection, allowing up to eight devices on the same bus.
2. VSS: Ground pin for power supply.
3. SDA (Serial Data): A bidirectional pin for data transfer.
4. SCL (Serial Clock): A clock input pin that synchronizes data transfer between devices.
5. WP (Write Protect): A pin to enable or disable write protection of the entire memory.
6. VCC: Power supply pin.
The AT24C256BN-SH-T operates in a range of 1.7V to 5.5V, making it suitable for a wide variety of applications. It is commonly used for data storage needs in consumer electronics, industrial, and automotive applications.

Manufacturer

The AT24C256BN-SH-T is manufactured by Microchip Technology Inc. Microchip Technology is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions. The company supplies a wide range of products, including memory devices like EEPROMs, which the AT24C256BN-SH-T is a part of. Microchip serves various industries, offering solutions designed to help customers innovate and streamline product development, reduce total system costs, and meet time-to-market requirements.

Application

The AT24C256BN-SH-T is a 256Kb EEPROM memory chip commonly used in applications requiring non-volatile data storage. It is suitable for consumer electronics, industrial automation, medical devices, and automotive systems. Typical uses include storing configuration settings, calibration data, and user preferences. Its small size and low power consumption make it ideal for battery-operated devices.

Equivalent

The AT24C256BN-SH-T is a 256Kb I2C-compatible EEPROM. Equivalent products include the Microchip 24LC256, STMicroelectronics M24C256, and ON Semiconductor CAT24C256. These chips generally offer similar memory capacity, voltage range, and I2C interface compatibility, making them suitable alternatives for applications needing non-volatile storage. Always verify pin configuration and electrical characteristics for compatibility.

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