N25Q256A33EF840F

Basic Information Overview

• Category: Non-volatile Memory
• Use: Data storage and retrieval
• Characteristics:
  • High capacity
  • Fast read/write speeds
  • Low power consumption
• Package: Surface Mount Technology (SMT)
• Essence: Flash memory chip
• Packaging/Quantity: Available in reels or trays, quantity depends on customer requirements

Specifications

• Capacity: 256 Megabits (32 Megabytes)
• Interface: Serial Peripheral Interface (SPI)
• Voltage Range: 2.7V to 3.6V
• Operating Temperature Range: -40°C to +85°C
• Erase/Program Cycles: Up to 100,000 cycles
• Data Retention: Up to 20 years

Detailed Pin Configuration

The N25Q256A33EF840F has a total of 8 pins. The pin configuration is as follows:

1. Chip Select (/CS) - Active low input used to enable/disable the device
2. Serial Clock (SCLK) - Input for synchronizing data transfer
3. Serial Data Input (SI) - Input for shifting data into the device
4. Serial Data Output (SO) - Output for shifting data out of the device
5. Hold (/HOLD) - Input used to pause serial communication
6. Write Protect (/WP) - Input used to protect the memory from write operations
7. Ground (GND) - Reference ground connection
8. Power Supply (VCC) - Power supply input

Functional Features

• High-speed data transfer with SPI interface
• Sector erase and byte/page program operations
• Dual/Quad I/O support for faster data transfer rates
• Advanced security features like hardware protection and one-time programmable (OTP) area
• Software and hardware reset options for system initialization

Advantages

• Large storage capacity for data-intensive applications
• Fast read/write speeds enable quick data access
• Low power consumption for energy-efficient operation
• Compact SMT package allows for easy integration into electronic devices
• High endurance with up to 100,000 erase/program cycles

Disadvantages

• Relatively higher cost compared to other memory technologies
• Limited write endurance compared to some other non-volatile memory types
• Requires an external microcontroller or host device for communication

Working Principles

The N25Q256A33EF840F is based on the NOR flash memory technology. It stores data using a grid of memory cells that can be electrically programmed and erased. The SPI interface allows for serial communication between the memory chip and the host device. Data is transferred in chunks, and the memory can be read, written, or erased at the sector level.

Detailed Application Field Plans

The N25Q256A33EF840F is widely used in various electronic devices and systems, including: 1. Solid-state drives (SSDs) 2. Networking equipment 3. Automotive electronics 4. Industrial control systems 5. Consumer electronics (e.g., smart TVs, set-top boxes)

Detailed and Complete Alternative Models

1. N25Q128A13EF840E - 128 Megabit (16 Megabyte) capacity, similar specifications
2. N25Q512A33EF840G - 512 Megabit (64 Megabyte) capacity, similar specifications
3. N25Q1G33EF840D - 1 Gigabit (128 Megabyte) capacity, similar specifications

These alternative models offer different capacities while maintaining similar characteristics and pin configurations.

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