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AT25DF081A-SH-B

Name: AT25DF081A-SH-B
Rating: 4.7 (12 reviews)

IC FLASH 8MBIT SPI 100MHZ 8SOIC

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規格

Part Status	Discontinued at Digi-Key
DigiKey Programmable	Verified
Memory Type	Non-Volatile
Memory Format	FLASH
Technology	FLASH
Memory Size	8Mbit
Memory Organization	256 Bytes x 4096 pages
Memory Interface	SPI
Write Cycle Time - Word, Page	7µs, 3ms
Voltage - Supply	2.7V ~ 3.6V
Operating Temperature	-40°C ~ 85°C (TC)
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.209", 5.30mm Width)
Supplier Device Package	8-SOIC
Base Product Number	AT25DF081
Clock Frequency	100 MHz

概述

Description

The AT25DF081A-SH-B is a high-performance, serial Flash memory chip manufactured by Microchip Technology. It features an 8 megabit (1 megabyte) storage capacity and utilizes the SPI (Serial Peripheral Interface) protocol for communication, enabling fast data transfer rates. This chip is designed for embedded applications, making it suitable for various devices such as consumer electronics, industrial control systems, and automotive applications.
Key features include a wide voltage range (2.7V to 3.6V), low power consumption, and support for multiple programming and erase modes. The AT25DF081A also includes features like a hardware write protection mechanism and an integrated 64-byte page buffer for efficient data management. Its compact 8-lead SOIC (Small Outline Integrated Circuit) package allows for easy integration into small form factor designs.
Overall, the AT25DF081A-SH-B is a reliable choice for developers looking to implement durable and efficient non-volatile memory solutions in their electronic designs.

Features

The AT25DF081A-SH-B is an 8-Mbit serial Flash memory device from Microchip Technology (formerly Atmel). Key features include:
1. Memory Size: 8 Mbit (1 MB) with 1024 programmable pages.
2. Interface: SPI (Serial Peripheral Interface) with support for dual and quad modes for faster data transfer.
3. Operating Voltage: 2.7V to 3.6V, making it suitable for low-power applications.
4. Read Speed: Up to 85 MHz, allowing quick access to stored data.
5. Write/Erase Cycles: Supports up to 100,000 program/erase cycles per sector.
6. Data Retention: Maintains data integrity for up to 20 years at 85°C.
7. Sector Erase: Enables erasing of 4KB sectors, 32KB blocks, or full chip.
8. Security Features: Supports secure write protection and a unique ID for device identification.
9. Package Type: Available in various packages, including SOIC and DFN for flexibility in design.
This combination of features makes the AT25DF081A-SH-B ideal for applications in consumer electronics, automotive, and industrial control systems.

Package

The AT25DF081A-SH-B is packaged in a SOIC-8 (Small Outline Integrated Circuit) form factor, which features an 8-pin configuration. This package type is designed for surface mounting on PCBs, providing a compact solution for embedded applications.

Pinout

The AT25DF081A-SH-B is an 8 Mbit (1 MB) SPI serial flash memory chip with a total of 8 pins. Here is the pin count and their functions:
1. CS (Chip Select): Active low signal to enable the device.
2. MOSI (Master Out Slave In): Input for data sent to the memory from the host.
3. MISO (Master In Slave Out): Output for data sent from the memory to the host.
4. SCK (Serial Clock): Clock input from the host to synchronize data transmission.
5. VCC: Power supply pin (typically 2.7V to 3.6V).
6. GND: Ground pin.
7. HOLD: Hold pin to pause operations without resetting the chip.
8. WP (Write Protect): Protects memory from accidental write operations when held low.
This device is used in various applications requiring non-volatile storage, such as code storage, data logging, and firmware updates.

Manufacturer

The manufacturer of the AT25DF081A-SH-B is Adesto Technologies. Adesto is a semiconductor company that specializes in non-volatile memory solutions, particularly in areas such as serial NOR Flash memory devices. Founded in 2006, the company focuses on providing innovative memory solutions for a range of applications, including IoT (Internet of Things), consumer electronics, and industrial systems. Adesto Technologies is known for its expertise in low-power and high-density memory products, catering to the needs of a diverse client base in the electronics industry.

Application

The AT25DF081A-SH-B is an 8-Mbit serial Flash memory chip primarily used in applications such as firmware storage, data logging, configuration storage, and code shadowing in embedded systems. It is suitable for consumer electronics, automotive, industrial controls, and IoT devices, where non-volatile memory is required for quick data access and retention after power loss.

Equivalent

The AT25DF081A-SH-B is an 8 Mb (1 MB) Serial Flash Memory chip. Equivalent products include the Winbond W25Q80BV, Micron MT25QL080A, and Cypress S25FL208K. These chips are similar in capacity, interface (SPI), and performance characteristics. Always verify specific features and compatibility for your application.