AT45DQ321-SHF2B-T
Product Overview
Category
The AT45DQ321-SHF2B-T belongs to the category of serial NOR Flash memory.
Use
It is commonly used for storing program code and data in various electronic devices such as microcontrollers, IoT devices, and consumer electronics.
Characteristics
- High-speed read operations
- Low power consumption
- Wide operating voltage range
- Small form factor
- High reliability and endurance
Package
The AT45DQ321-SHF2B-T is available in a compact 8-lead SOIC package.
Essence
This product is essential for non-volatile storage of critical data and program code in embedded systems.
Packaging/Quantity
The AT45DQ321-SHF2B-T is typically packaged in reels with a quantity of 2500 units per reel.
Specifications
- Memory Size: 32 megabits (4 megabytes)
- Interface: Serial Peripheral Interface (SPI)
- Operating Voltage: 1.65V to 3.6V
- Maximum Clock Frequency: 66 MHz
- Operating Temperature Range: -40°C to 85°C
- Data Retention: 20 years
- Endurance: 100,000 program/erase cycles
Detailed Pin Configuration
The AT45DQ321-SHF2B-T features the following pin configuration: 1. /CS (Chip Select) 2. SI (Serial Input) 3. SO (Serial Output) 4. SCK (Serial Clock) 5. WP (Write Protect) 6. VCC (Power Supply) 7. GND (Ground) 8. HOLD (Hold)
Functional Features
- Sector architecture with four sectors of 8KB, 8KB, 8KB, and 8/64KB
- Flexible erase capability
- Software and hardware protection of memory
- Continuous read mode
- Fast program and erase operations
Advantages and Disadvantages
Advantages
- High-speed read operations enable quick access to stored data
- Low power consumption prolongs battery life in portable devices
- Wide operating voltage range enhances compatibility with different systems
- Small form factor saves space on PCBs
Disadvantages
- Limited maximum clock frequency compared to some competing products
- Relatively lower endurance compared to other flash memory options
Working Principles
The AT45DQ321-SHF2B-T operates by using the SPI interface to communicate with the host microcontroller. It stores data in non-volatile memory cells that retain their state even when power is removed. The memory can be read from and written to using specific commands sent over the SPI bus.
Detailed Application Field Plans
The AT45DQ321-SHF2B-T is well-suited for use in a wide range of applications including: - Industrial automation systems - Automotive electronics - Smart home devices - Wearable technology - Medical devices
Detailed and Complete Alternative Models
Some alternative models to the AT45DQ321-SHF2B-T include: - W25Q32JVSSIQ (Winbond) - S25FL132K0XMFI011 (Cypress) - MX25L3233FM2I-08G (Macronix)
In conclusion, the AT45DQ321-SHF2B-T offers a reliable and efficient solution for non-volatile storage in various electronic devices, with its high-speed read operations, low power consumption, and small form factor making it an attractive choice for embedded system designers.
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What is the AT45DQ321-SHF2B-T?
- The AT45DQ321-SHF2B-T is a serial NOR flash memory device with a capacity of 32 megabits (Mb) and a wide voltage range, making it suitable for various technical solutions.
What are the key features of the AT45DQ321-SHF2B-T?
- Some key features include its low-power consumption, high-speed clock frequency, and flexible erase capability, making it suitable for battery-powered applications and data storage requirements.
In what types of applications can the AT45DQ321-SHF2B-T be used?
- It can be used in a wide range of applications such as industrial automation, consumer electronics, automotive systems, and IoT devices that require non-volatile memory for program and data storage.
What is the operating voltage range of the AT45DQ321-SHF2B-T?
- The device operates within a wide voltage range of 1.65V to 3.6V, allowing it to be used in systems with varying power supply requirements.
How does the AT45DQ321-SHF2B-T handle data retention?
- The AT45DQ321-SHF2B-T offers excellent data retention performance, typically retaining data for over 20 years, ensuring long-term reliability in critical applications.
Can the AT45DQ321-SHF2B-T withstand harsh environmental conditions?
- Yes, the device is designed to withstand extended temperature ranges and is qualified for automotive applications, making it suitable for use in challenging environments.
What interfaces does the AT45DQ321-SHF2B-T support?
- It supports a standard SPI interface, enabling easy integration into a wide range of microcontroller-based systems.
Does the AT45DQ321-SHF2B-T support software and hardware protection mechanisms?
- Yes, it provides both software and hardware protection features to prevent unauthorized access and ensure data security.
What are the typical read and write speeds of the AT45DQ321-SHF2B-T?
- The device offers fast read and write operations, with typical read speeds of up to 66 MHz and page program times as fast as 0.7 ms.
Is the AT45DQ321-SHF2B-T RoHS compliant?
- Yes, the AT45DQ321-SHF2B-T is RoHS compliant, meeting environmental standards for lead-free manufacturing.