N25Q256A11EF840E

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 various packaging options, typically sold in reels or trays

Specifications

• Capacity: 256 Megabits (32 Megabytes)
• Interface: Serial Peripheral Interface (SPI)
• Voltage Range: 2.7V to 3.6V
• Operating Temperature: -40°C to +85°C
• Erase/Program Time: Varies depending on the operation, typically in milliseconds
• Data Retention: Up to 20 years

Detailed Pin Configuration

The N25Q256A11EF840E has a total of 8 pins. The pin configuration is as follows:

1. Chip Select (/CS) - Used to enable or disable the chip
2. Serial Clock (SCLK) - Provides the clock signal for data transfer
3. Serial Data Input (SI) - Receives data from the host device
4. Serial Data Output (SO) - Transmits data to the host device
5. Hold (/HOLD) - Pauses ongoing operations
6. Write Protect (/WP) - Protects the memory from being written
7. Ground (GND) - Common ground reference
8. Power Supply (VCC) - Power input for the chip

Functional Features

• High-speed data transfer using SPI interface
• Sector erase and byte/page program operations
• Efficient power management with low standby current
• Hardware and software write protection mechanisms
• Advanced security features like unique ID and password protection

Advantages

• Large storage capacity for data-intensive applications
• Fast read/write speeds enable quick data access
• Low power consumption extends battery life in portable devices
• Compact SMT package allows for easy integration into circuit boards

Disadvantages

• Limited endurance compared to other non-volatile memory technologies
• Relatively higher cost per bit compared to traditional storage options
• Susceptible to data loss in case of power failure during write operations

Working Principles

The N25Q256A11EF840E is based on the NOR flash memory technology. It stores data by trapping electrons in a floating gate, which can be electrically programmed or erased. The SPI interface facilitates communication between the chip and the host device, enabling seamless data transfer.

Detailed Application Field Plans

The N25Q256A11EF840E is widely used in various applications, including: 1. Consumer Electronics: Smartphones, tablets, digital cameras 2. Automotive: Infotainment systems, instrument clusters 3. Industrial: Internet of Things (IoT) devices, industrial automation 4. Networking: Routers, switches, network storage devices 5. Medical: Patient monitoring systems, medical imaging equipment

Detailed and Complete Alternative Models

1. N25Q128A13EF840F - 128 Megabit capacity, similar features and specifications
2. N25Q512A11EF840G - 512 Megabit capacity, higher storage capability
3. N25Q064A13EF840D - 64 Megabit capacity, lower storage capability

These alternative models offer different capacities to suit specific application requirements.

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