AT25XV021A-XMHV-T

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Non-volatile Memory
• Characteristics: High-speed, Serial Flash Memory
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Stores and retrieves digital information in electronic devices
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Memory Size: 2 Megabits (256 Kilobytes)
• Interface: Serial Peripheral Interface (SPI)
• Voltage Range: 1.7V to 3.6V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 20 years
• Endurance: 100,000 Program/Erase Cycles

Detailed Pin Configuration

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

Functional Features

• High-Speed Read and Write Operations
• Flexible Erase Capability (Sector or Full Chip)
• Software and Hardware Protection Options
• Low Power Consumption
• Deep Power-Down Mode for Energy Efficiency
• Fast Program and Erase Times

Advantages

• Small form factor and low pin count make it suitable for space-constrained applications
• Wide voltage range allows compatibility with various systems
• High endurance ensures reliable data storage and retrieval
• Versatile interface enables easy integration into different designs
• Efficient power management features prolong battery life

Disadvantages

• Limited memory size may not be sufficient for certain applications
• Relatively higher cost compared to other non-volatile memory options
• Requires external components for proper operation (e.g., pull-up resistors)

Working Principles

The AT25XV021A-XMHV-T is 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 within the IC store information in the form of electrical charges, which can be programmed or erased using specific voltage levels. During read operations, the stored data is retrieved by sequentially accessing the memory cells.

Detailed Application Field Plans

• Consumer Electronics: Used in smart TVs, set-top boxes, and gaming consoles for firmware storage and software updates.
• Automotive: Employed in automotive infotainment systems, instrument clusters, and advanced driver-assistance systems (ADAS) for data storage and retrieval.
• Industrial Automation: Utilized in programmable logic controllers (PLCs), industrial control systems, and robotics for storing configuration data and program code.
• Medical Devices: Integrated into medical equipment such as patient monitors, ultrasound machines, and infusion pumps for data storage and firmware upgrades.

Detailed and Complete Alternative Models

1. AT25SF041-SSHD-T: 4 Megabit SPI Flash Memory, 8-pin SOIC package
2. MX25R6435FZUIH0: 64 Megabit Serial NOR Flash, 8-pin SOIC package
3. W25Q128JVSIQ: 128 Megabit Quad-SPI Flash Memory, 8-pin SOIC package

(Note: These alternative models are provided as examples and may not cover all available options in the market.)

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