AT25DQ321-SH-T

Product Overview

• Category: Memory IC
• Use: Data storage and retrieval
• Characteristics:
  • Non-volatile memory
  • High-speed data transfer
  • Low power consumption
• Package: SOP (Small Outline Package)
• Essence: Serial Flash Memory
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Memory Type: Serial NOR Flash
• Memory Size: 32Mb (4MB)
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage: 2.7V to 3.6V
• Operating Temperature Range: -40°C to +85°C
• Write/Erase Endurance: 100,000 cycles
• Data Retention: 20 years

Detailed Pin Configuration

The AT25DQ321-SH-T has a total of 8 pins:

1. VCC: Power supply voltage
2. GND: Ground
3. HOLD: Suspends ongoing serial communication
4. WP: Write Protect pin
5. SCK: Serial Clock input
6. SI: Serial Data Input
7. SO: Serial Data Output
8. CS: Chip Select

Functional Features

• Dual Output Read: Allows for faster data transfer rates
• Deep Power-Down Mode: Reduces power consumption when the device is not in use
• Sector Erase Capability: Enables selective erasure of specific memory sectors
• Software Protection: Provides write protection for specified memory areas
• Fast Program/Erase Times: Facilitates quick data storage and retrieval operations

Advantages and Disadvantages

Advantages: - High-speed data transfer - Low power consumption - Small form factor - Easy integration with existing systems - Reliable data retention

Disadvantages: - Limited storage capacity compared to other memory options - Relatively higher cost per unit compared to traditional storage solutions

Working Principles

The AT25DQ321-SH-T operates based on the Serial Peripheral Interface (SPI) protocol. It uses a combination of clock and data signals to communicate with the host microcontroller or system. The memory cells store data in a non-volatile manner, meaning the data is retained even when power is removed. The SPI interface allows for fast and efficient transfer of data between the memory and the host device.

Detailed Application Field Plans

The AT25DQ321-SH-T is commonly used in various applications, including but not limited to: - Consumer electronics: Smartphones, tablets, digital cameras - Automotive: Infotainment systems, instrument clusters - Industrial: Internet of Things (IoT) devices, industrial automation - Communication: Routers, modems, networking equipment

Detailed and Complete Alternative Models

1. AT25SF041-SSHD-T: 4Mb Serial NOR Flash Memory, SOP package
2. MX25L3233FZNI-08G: 32Mb Serial NOR Flash Memory, SOIC package
3. W25Q32JVSSIQ: 32Mb Serial NOR Flash Memory, WSON package
4. S25FL032P0XNFI011: 32Mb Serial NOR Flash Memory, DFN package

These alternative models offer similar functionality and can be considered as replacements for the AT25DQ321-SH-T depending on specific requirements and compatibility with the target system.

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