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AT45DB021D-SH-T

Name: AT45DB021D-SH-T
Rating: 4.7 (12 reviews)

IC FLASH 2MBIT SPI 66MHZ 8SOIC

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包 SOIC-8
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規格

Package	Tape & Reel (TR)
ProductStatus	Obsolete
MemoryType	Non-Volatile
MemoryFormat	FLASH
Technology	FLASH
MemorySize	2Mb (264 Bytes x 1024 pages)
MemoryInterface	SPI
ClockFrequency	66 MHz
WriteCycleTime-WordPage	4ms
Voltage-Supply	2.7V ~ 3.6V
OperatingTemperature	-40°C ~ 85°C (TC)
MountingType	Surface Mount
Package/Case	8-SOIC (0.209, 5.30mm Width)

概述

Description

The AT45DB021D-SH-T is a serial flash memory chip from Adesto Technologies, specifically designed for embedded applications. It features a 2-megabit (256KB) capacity and utilizes the Serial Peripheral Interface (SPI) for data communication, making it suitable for applications requiring fast data access and storage.
This chip is notable for its low power consumption, which is essential for battery-operated devices, and supports both read and write operations with high endurance. It operates at a voltage range of 2.7V to 3.6V and offers a range of programming and erasing options, including page and sector programming.
The AT45DB021D-SH-T is housed in a compact 8-pin SOIC package, making it ideal for space-constrained designs. It is commonly used in consumer electronics, industrial applications, and automotive systems for storing firmware, configuration data, and other non-volatile information. Its robustness and reliability make it a popular choice among designers looking for efficient memory solutions.

Features

The AT45DB021D-SH-T is a 2-megabit (256Kb x 8) serial Flash memory device from Microchip Technology. Key features include:
1. Interface: SPI-compatible serial interface, supporting single, dual, and quad I/O operations for high-speed data transfer.
2. Architecture: Supports a uniform 4K byte sector architecture, allowing for flexibility in memory management.
3. Read Speed: High-speed read capability up to 85 MHz in dual/quad mode, enabling fast data retrieval.
4. Endurance: Offers endurance of 100,000 program/erase cycles per sector.
5. Data Retention: Provides data retention of 20 years at 85°C.
6. Power Supply: Operates with a supply voltage of 2.7V to 3.6V, making it suitable for low-power applications.
7. Security Features: Includes a unique ID and a write protection feature to enhance data security.
8. Package: Available in a small SOIC-8 package, ideal for space-constrained designs.
Overall, the AT45DB021D-SH-T is ideal for applications requiring reliable, high-speed, non-volatile memory storage.

Package

The AT45DB021D-SH-T is packaged in a SOIC (Small Outline Integrated Circuit) format with an 8-pin configuration. This type of package is suitable for surface mounting on printed circuit boards, allowing for compact and efficient component placement.

Pinout

The AT45DB021D-SH-T is a serial flash memory device with a pin count of 8. It features a range of functionalities, including:
1. Memory Size: 2 megabits (256 kilobytes).
2. Interface: SPI (Serial Peripheral Interface) for communication.
3. Read/Write Operations: Supports read, program, and erase functions.
4. Data Retention: Typically has a data retention of 20 years.
5. Sector Erase: Can erase data in sectors, allowing for flexible data management.
6. Low Power Consumption: Designed for battery-operated applications.
This device is often used in applications requiring non-volatile storage, such as in consumer electronics, automotive, and industrial systems.

Manufacturer

The manufacturer of the AT45DB021D-SH-T is Adesto Technologies Corporation. Adesto is a semiconductor company that specializes in non-volatile memory solutions, including data storage products like Serial NOR Flash memory. Founded in 2006, the company focuses on providing innovative technology for various applications, including the Internet of Things (IoT), industrial automation, consumer electronics, and more. Their products are designed to meet the increasing demand for efficient and reliable memory solutions in a wide range of electronic devices.

Application

The AT45DB021D-SH-T is a serial data flash memory device commonly used in embedded systems for applications such as data storage, firmware updates, and configuration settings. Its compact size and low power consumption make it ideal for use in consumer electronics, automotive systems, industrial automation, and IoT devices. Additionally, it supports code shadowing and data logging, enhancing performance in applications requiring non-volatile memory.

Equivalent

The AT45DB021D-SH-T is a 2Mbit serial flash memory chip. Equivalent products include:
1. Winbond W25X20CL - 2Mbit SPI flash
2. Microchip SST25VF020B - 2Mbit serial flash
3. Cypress S25FL020A - 2Mbit NOR flash
4. NXP/Freescale M25P20 - 2Mbit SPI flash
Check compatibility in terms of voltage, interface, and pinout before replacement.