25LC320AT-E/SN

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25LC320AT-E/SN

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IC EEPROM 32KBIT SPI 10MHZ 8SOIC

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Specifications

Attribute Value
Part Status Active
Digi Key Programmable Verified
Memory Type Non-Volatile
Memory Format EEPROM
Technology EEPROM
Memory Size 32Kbit
Memory Organization 4K x 8
Memory Interface SPI
Write Cycle Time - Word, Page 5ms
Voltage - Supply 2.5V ~ 5.5V
Operating Temperature -40°C ~ 125°C (TA)
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Base Product Number 25LC320
Clock Frequency 10 MHz

Overview

Description

The 25LC320AT-E/SN is a 32 Kbit serial EEPROM memory device developed by Microchip Technology. It utilizes the SPI (Serial Peripheral Interface) protocol, making it suitable for applications requiring low pin count connections. The EEPROM operates with a voltage range of 1.8V to 5.5V, offering flexibility for various power environments. It features a 10 MHz clock frequency, allowing for fast data transfers. The device supports byte-level write operations and has a page write capability of up to 32 bytes, enhancing write efficiency.
Notably, the 25LC320AT-E/SN includes a write protection mechanism to safeguard data integrity, which is crucial in applications where data preservation is critical. Its endurance rating is 1,000,000 write cycles per byte, and it has a data retention span of over 200 years, ensuring long-term reliability. The package type is an 8-pin SOIC (Small Outline Integrated Circuit), which is compact and suitable for space-constrained designs. Typical applications include data logging, configuration storage, and any embedded systems requiring reliable and non-volatile memory storage solutions.

Equivalent

The 25LC320AT-E/SN is a 32Kb SPI Serial EEPROM. Equivalent products include:
1. AT25M02 by Microchip Technology
2. M95M02 by STMicroelectronics
3. CAT25M02 by ON Semiconductor
4. MX25L3206E by Macronix

These components share similar communication protocols and memory sizes, though it's essential to verify specific electrical characteristics and package compatibility when considering substitutions.

Features

The 25LC320AT-E/SN is a 32 Kbit (4 Kbyte) serial EEPROM memory chip from Microchip Technology. It has several key features:
1. Interface: It uses a Serial Peripheral Interface (SPI) for communication, supporting SPI modes 0 and 3, which ensures compatibility with a wide range of microcontrollers.
2. Capacity: Offers 32 Kbits of memory, organized as 4,096 bytes, making it suitable for small data storage needs.
3. Voltage Range: Operates in a wide voltage range from 1.8V to 5.5V, which provides flexibility for various applications.
4. Speed: Supports a clock frequency of up to 10 MHz, facilitating fast data transfer rates.
5. Write Protection: Equipped with a write-protect pin that allows for hardware-based write protection of the entire memory.
6. Endurance and Retention: Features high endurance with over 1 million erase/write cycles per byte and a data retention of over 200 years.
7. Packaging: Available in an 8-pin SOIC package, which is compact and easy to integrate into different circuit designs.
These features make the 25LC320AT-E/SN suitable for applications in consumer electronics, automotive, and other embedded systems where reliable data storage is needed.

Pinout

The 25LC320AT-E/SN is a 32Kb (4K x 8) SPI EEPROM memory chip produced by Microchip Technology. It is designed for use in serial communication and data storage applications.
The chip comes in an 8-lead SOIC (Small Outline Integrated Circuit) package, meaning it has 8 pins. The functions of these pins are as follows:
1. CS (Chip Select): Activates the device when low.
2. SO (Serial Output): Outputs data from the EEPROM.
3. WP (Write Protect): Disables all write operations if connected to VCC.
4. VSS: Ground reference for the device.
5. SI (Serial Input): Inputs data to the EEPROM.
6. SCK (Serial Clock): Provides the clock signal for SPI operations.
7. HOLD: Pauses the serial communication without resetting the device.
8. VCC: Power supply pin for the device, typically 1.8V to 5.5V.
These pin functions allow the 25LC320AT-E/SN to interface with a microcontroller via the SPI protocol for efficient data storage and retrieval.

Manufacturer

The manufacturer of the 25LC320AT-E/SN is Microchip Technology Inc. Microchip is a leading American semiconductor company that designs, manufactures, and sells microcontroller, mixed-signal, analog, and Flash-IP solutions. The company serves a wide range of industries, including automotive, consumer electronics, industrial, and telecommunications. Microchip is known for providing comprehensive solutions that integrate hardware, software, and development tools, enabling developers to bring innovative products to market efficiently.

Application

The 25LC320AT-E/SN is a 32Kb serial EEPROM (Electrically Erasable Programmable Read-Only Memory) used in various applications. Its primary areas include:
1. Consumer Electronics: Storing settings/configurations in devices like TVs, remote controls, and audio systems.
2. Automotive: Retaining calibration data, system settings, and error logs in control systems.
3. Industrial: Data logging and configuration storage in machinery and control systems.
4. Medical Devices: Maintaining user settings and history data.
5. Communication Equipment: Configurations and temporary data storage in routers and networking devices.
6. Computers: BIOS and peripheral device settings.
The EEPROM's non-volatile nature makes it ideal for applications requiring reliable data retention without power.

Package

The 25LC320AT-E/SN is a Microchip Technology EEPROM that comes in an 8-lead SOIC package. This surface-mount package is designed for reliable performance in a compact form factor, suitable for various electronic applications.

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