AT25640B-MAHL-T

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AT25640B-MAHL-T

IC EEPROM 64KBIT SPI 20MHZ 8UDFN

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規格

Part Status Active
DigiKey Programmable Not Verified
Memory Type Non-Volatile
Memory Format EEPROM
Technology EEPROM
Memory Size 64Kbit
Memory Organization 8K 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-UFDFN Exposed Pad
Supplier Device Package 8-UDFN (2x3)
Base Product Number AT25640

概述

Description

The AT25640B-MAHL-T is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) device produced by Microchip Technology. It features a 256 Kbit (32 K x 8) storage capacity and communicates via an I2C interface, making it suitable for a variety of applications, including data storage in consumer electronics, industrial equipment, and automotive systems.
Key features include a wide operating voltage range (typically 1.7V to 5.5V), low power consumption, and fast programming and read times. The device supports a page write capability, enabling efficient data storage. Additionally, it has built-in write protection and supports multiple device addressing, allowing for easy integration into systems requiring multiple EEPROMs.
The AT25640B-MAHL-T is designed for reliability and endurance, often with high cycle life ratings. It comes in various package options, including surface mount and through-hole configurations, facilitating flexible design implementations. This device is ideal for applications requiring non-volatile memory retention without the need for battery backup.

Features

The AT25640B-MAHL-T is a Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) device designed for low-power applications. Key features include:
1. Memory Capacity: 32 Kbits (4 Kbytes) of EEPROM organized in 256 pages of 16 bytes each.
2. Interface: Utilizes an I2C-compatible interface for communication, supporting multiple devices on the same bus.
3. Operating Voltage: Typically operates between 1.7V to 5.5V, making it suitable for battery-powered devices.
4. Temperature Range: Available in industrial temperature ranges, ensuring reliability in various environments.
5. Write Endurance: Supports a high number of write cycles (up to 1 million cycles) and data retention of up to 100 years.
6. Low Power Consumption: Designed for minimal power usage during active and standby modes, enhancing battery life in portable applications.
7. Packages: Offered in small form-factor packages, facilitating integration into compact designs.
This combination of features makes the AT25640B-MAHL-T ideal for applications such as consumer electronics, automotive, and industrial systems.

Package

The AT25640B-MAHL-T is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) format.

Pinout

The AT25640B-MAHL-T is a 32K x 8-bit EEPROM (Electrically Erasable Programmable Read-Only Memory) from Microchip Technology. It features a total of 8 pins. The pin functions are as follows:
1. A0 - Address Line 0
2. A1 - Address Line 1
3. A2 - Address Line 2
4. A3 - Address Line 3
5. D0-D7 - Data Lines (Bidirectional)
6. VCC - Power Supply (typically +2.7V to +5.5V)
7. GND - Ground
8. WP - Write Protect (active low)
This EEPROM is used for non-volatile storage, allowing data retention without power. The device supports I²C or SPI interfaces for communication, enabling various applications in embedded systems.

Manufacturer

The AT25640B-MAHL-T is manufactured by Microchip Technology Inc. Microchip is a leading provider of microcontroller, mixed-signal, analog, and flash-IP solutions. Founded in 1989, the company specializes in embedded control applications and offers a broad range of products including microcontrollers, digital signal controllers, and memory devices. Microchip serves various industries such as automotive, industrial, consumer electronics, and communications. Their products are widely used in applications requiring reliable and efficient data processing and control.

Application

The AT25640B-MAHL-T is a 256K-bit (32K x 8) EEPROM primarily used in applications such as consumer electronics, automotive systems, industrial automation, and telecommunications. It is suited for storing configuration data, calibration settings, and firmware due to its non-volatile memory capability. Its compact size and low power consumption make it ideal for portable devices and embedded systems.

Equivalent

The AT25640B-MAHL-T is a 512KB (64K x 8) EEPROM. Equivalent products include the Microchip 25LC640, STMicroelectronics M24C640, and Winbond W25X640. Always verify compatibility in terms of voltage, pin configuration, and operational specifications before substituting.

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