Overview
The AT25PE16-SSHF-T is a 16Mb serial flash memory chip manufactured by Adesto Technologies (now part of Dialog Semiconductor). It utilizes the Serial Peripheral Interface (SPI) for high-speed data transfer, making it suitable for applications requiring reliable non-volatile storage. This chip is designed for industrial and consumer markets, offering low power consumption and a wide operating temperature range (-40°C to +85°C). Its compact form factor and robust performance make it a popular choice for embedded systems and IoT devices.
Structure and Working Principle
The AT25PE16-SSHF-T is built on advanced semiconductor technology, featuring a floating gate architecture for data retention. It communicates with a host microcontroller via SPI, supporting clock frequencies up to 85MHz for rapid read/write operations. The memory is organized into 4,096 sectors, each containing 256 pages of 256 bytes. This structure allows flexible data management, including sector erase and byte-level programming. The chip also includes a unique 64-bit serial number for device identification.
Key Features
Key features of the AT25PE16-SSHF-T include its 16Mb density, low active current consumption (15mA typical), and deep power-down mode (1µA standby current). It supports single, dual, and quad SPI modes for enhanced data throughput. The chip offers a minimum of 100,000 program/erase cycles per sector and 20-year data retention. It includes hardware and software write protection mechanisms to prevent accidental data corruption. These features make it suitable for demanding industrial applications.
Application Areas
The AT25PE16-SSHF-T is widely used in embedded systems for firmware storage, configuration data, and parameter storage. Its reliability makes it ideal for industrial automation equipment, medical devices, and automotive electronics. In consumer applications, it's found in smart home devices, wearables, and digital cameras. The chip's SPI interface compatibility with most microcontrollers simplifies integration across various platforms. Its temperature range supports both indoor and outdoor applications.
Maintenance and Precautions
When handling the AT25PE16-SSHF-T, proper ESD precautions must be observed. The device should be stored in anti-static packaging when not in use. During PCB assembly, follow recommended reflow soldering profiles to prevent thermal damage. For long-term reliability, avoid exceeding the maximum ratings for voltage, temperature, and program/erase cycles. The chip's write protection features should be utilized to prevent unauthorized or accidental modification of critical data areas.
B2B Procurement Guide
When procuring the AT25PE16-SSHF-T, verify the manufacturer's part number and packaging (typically tape and reel). Lead times can vary, so plan inventory accordingly for production schedules. Consider ordering samples for prototype testing before large-volume purchases. Check for counterfeit protection measures, as flash memory is commonly targeted by counterfeiters. For industrial applications, specify the industrial temperature range variant to ensure reliability in harsh environments.