AT25256B-XHL-T

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AT25256B-XHL-T

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IC EEPROM 256KBIT SPI 8TSSOP

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Attribut Wert
Part Status Active
Base Product Number AT25256
Digi Key Programmable Verified
Memory Type Non-Volatile
Memory Format EEPROM
Technology EEPROM
Memory Size 256Kbit
Memory Organization 32K x 8
Memory Interface SPI
Clock Frequency 20 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 / Case 8-TSSOP (0.173", 4.40mm Width)
Supplier Device Package 8-TSSOP
Packaging Cut Tape (CT), Tape & Reel (TR)

Übersicht

Description

The AT25256B-XHL-T is a specific model of a serial electrically erasable programmable read-only memory (EEPROM) chip produced by Microchip Technology. This component is part of the AT25 series, known for its reliability and efficiency in data storage applications.
Key features of the AT25256B-XHL-T include:
1. Capacity: It typically offers 256 Kbits (32 Kbytes) of storage capacity, making it suitable for various data logging and configuration storage needs.

2. Interface: It employs an SPI (Serial Peripheral Interface) protocol, which ensures fast data transfer rates and is widely used in microcontroller communications due to its simplicity and efficiency.
3. Voltage Range: The device operates within a voltage range that allows for flexibility in different applications, often around 1.7V to 5.5V.
4. Performance: It provides efficient write and read operations with endurance of up to one million write cycles and a data retention period of up to 100 years.
5. Package Type: The "XHL" designation usually refers to the physical package and temperature rating, suitable for specific application environments.
This EEPROM is commonly used in consumer electronics, automotive systems, and industrial devices for non-volatile data storage.

Equivalent

The AT25256B-XHL-T is a 256-Kbit SPI EEPROM. Equivalent products would include:
1. Microchip 25LC256 - 256-Kbit SPI EEPROM
2. STMicroelectronics M95M02-DRMN6TP - 2-Mbit, but compatible in smaller capacities
3. ON Semiconductor CAT25256 - 256-Kbit SPI EEPROM
4. ROHM BR25H256-3A - 256-Kbit SPI EEPROM
When choosing an equivalent, ensure compatibility in terms of memory size, voltage range, interface, and package type.

Features

The AT25256B-XHL-T is a serial EEPROM memory device designed for efficient data storage and retrieval. Key features include:
1. Memory Capacity: 256 Kbits organized as 32,768 x 8 bits, suitable for various data storage applications.

2. Interface: Utilizes a 3-wire SPI (Serial Peripheral Interface) for communication, ensuring fast and efficient data transfer.
3. Voltage Range: Operates between 1.8V to 5.5V, providing flexibility for integration in different systems.
4. High Reliability: Endures up to 1,000,000 write cycles per cell, ensuring long-term data retention and reliability.
5. Data Retention: Offers data retention for over 100 years, making it ideal for applications requiring long-term data preservation.
6. Fast Operation: Maximum clock frequency of 10 MHz, enabling quick read and write operations.
7. Low Power Consumption: Designed for low energy usage, ideal for battery-powered devices.
8. Temperature Range: Supports a wide operating temperature range from -40°C to +85°C, suitable for diverse environmental conditions.
9. Package Options: Available in compact SOIC, TSSOP, and other package types, allowing flexibility in PCB design.
These features make the AT25256B-XHL-T suitable for a wide range of electronic applications, including consumer electronics, industrial controls, and automotive systems.

Pinout

The AT25256B-XHL-T is a 256-Kbit SPI (Serial Peripheral Interface) EEPROM. It features an 8-pin configuration, which is typical for such devices. Here is a brief overview of the pin functions:
1. CS (Chip Select): Activates the device, enabling SPI communication.
2. SCK (Serial Clock): Provides the clock pulses needed for data transfer.
3. SI (Serial Input): Input pin for sending data to the EEPROM.
4. SO (Serial Output): Output pin for receiving data from the EEPROM.
5. WP (Write Protect): Used to protect the EEPROM from write operations.
6. HOLD: Pauses the serial communication without deselecting the device.
7. VCC: Supply voltage for the EEPROM.
8. GND: Ground connection.
These pins facilitate the read, write, and data storage capabilities of the EEPROM, allowing users to store data non-volatilely. The device operates via SPI, which requires precise timing and control managed through the SCK, SI, SO, and CS pins.

Manufacturer

The AT25256B-XHL-T is manufactured by Microchip Technology Inc. Microchip Technology is a leading semiconductor company that specializes in developing and manufacturing microcontrollers, mixed-signal, analog, and Flash-IP integrated circuits. The company provides a wide range of products and solutions used in various applications across automotive, industrial, consumer, aerospace, and communication markets. Microchip focuses on delivering low-risk product development, lower total system cost, and faster time to market for thousands of diverse customer applications worldwide.

Application

The AT25256B-XHL-T is a 256-Kbit SPI serial EEPROM designed for applications requiring reliable data storage and retrieval. Its primary application areas include:
1. Consumer Electronics: Used for storing configuration settings and user preferences.
2. Industrial Automation: Ideal for data logging and calibration data storage.
3. Automotive Systems: Suitable for maintaining diagnostic data and user settings.
4. Medical Devices: Stores critical calibration data and patient records.
5. Networking Equipment: Manages configuration files and firmware updates.
6. IoT Devices: Facilitates data logging and firmware storage for smart devices.
These applications benefit from its non-volatile memory, fast access times, and low power consumption.

Package

The AT25256B-XHL-T is a 256-Kbit, SPI-compatible EEPROM from Microchip Technology, typically packaged in an 8-lead SOIC (Small Outline Integrated Circuit) or similar surface-mount package.

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