AT45DQ161-MHF2B-T

Product Overview

Category

The AT45DQ161-MHF2B-T belongs to the category of non-volatile memory devices.

Use

This product is primarily used for data storage in various electronic devices, such as microcontrollers, embedded systems, and consumer electronics.

Characteristics

• Non-volatile: The AT45DQ161-MHF2B-T retains stored data even when power is disconnected.
• High capacity: This device offers a storage capacity of 16 megabits (2 megabytes).
• Fast access time: With a maximum access time of 85 nanoseconds, it ensures quick retrieval of stored data.
• Low power consumption: The AT45DQ161-MHF2B-T is designed to minimize power usage, making it suitable for battery-powered devices.
• Wide operating voltage range: It can operate within a voltage range of 2.7V to 3.6V.

Package and Quantity

The AT45DQ161-MHF2B-T is available in a compact 8-pin SOIC (Small Outline Integrated Circuit) package. It is typically sold in reels containing a quantity of 250 units.

Specifications

• Memory Capacity: 16 megabits (2 megabytes)
• Operating Voltage Range: 2.7V to 3.6V
• Access Time: Maximum 85 nanoseconds
• Interface: Serial Peripheral Interface (SPI)
• Temperature Range: -40°C to +85°C
• Data Retention: Minimum 20 years

Detailed Pin Configuration

The AT45DQ161-MHF2B-T features the following pin configuration:

1. Chip Select (/CS)
2. Serial Clock (SCK)
3. Serial Data Input (SI)
4. Serial Data Output (SO)
5. Write Protect (/WP)
6. Hold (/HOLD)
7. VCC (Power Supply)
8. Ground (GND)

Functional Features

• Dual Data Output: The device supports both standard and high-speed data output modes.
• Continuous Read Mode: It allows sequential reading of multiple memory locations without the need for readdressing.
• Sector Lockdown: Specific sectors can be locked to prevent accidental modification or erasure.
• Software Protection: The AT45DQ161-MHF2B-T offers software-based protection mechanisms to safeguard stored data.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High storage capacity suitable for various applications.
• Fast access time enables quick retrieval of data.
• Low power consumption extends battery life in portable devices.
• Wide operating voltage range provides flexibility in different systems.

Disadvantages

• Limited storage capacity compared to other non-volatile memory options.
• Relatively higher cost per megabit compared to alternative memory technologies.

Working Principles

The AT45DQ161-MHF2B-T utilizes flash memory technology to store and retrieve data. It employs a Serial Peripheral Interface (SPI) for communication with the host device. When data is written, it is stored in memory cells using electrical charges. During read operations, the stored charges are sensed and converted back into digital data.

Detailed Application Field Plans

The AT45DQ161-MHF2B-T finds application in various fields, including: 1. Microcontrollers: Used for program storage and data logging. 2. Embedded Systems: Provides non-volatile storage for firmware and configuration data. 3. Consumer Electronics: Enables data storage in devices such as smart TVs, set-top boxes, and gaming consoles.

Alternative Models

For those seeking alternatives to the AT45DQ161-MHF2B-T, the following models offer similar functionality: 1. AT25SF161: A 16-megabit SPI flash memory device with comparable specifications. 2. MX25L1606E: Another 16-megabit SPI flash memory option with similar features.

These alternative models can be considered based on specific requirements and compatibility with the target system.

In conclusion, the AT45DQ161-MHF2B-T is a non-volatile memory device that offers high capacity, fast access time, and low power consumption. It finds application in various electronic devices and provides reliable data storage. While it has certain limitations, it remains a popular choice for many applications requiring non-volatile memory functionality.