N25Q128A21BF840E

Basic Information Overview

• Category: Non-volatile Memory
• Use: Data storage and retrieval
• Characteristics:
  • High capacity
  • Fast read and write speeds
  • Low power consumption
  • Reliable and durable
• Package: 8-pin SOIC
• Essence: Flash memory chip
• Packaging/Quantity: Available in bulk or reel packaging

Specifications

• Capacity: 128 Megabits (16 Megabytes)
• Interface: Serial Peripheral Interface (SPI)
• Voltage Range: 2.7V to 3.6V
• Operating Temperature: -40°C to +85°C
• Erase/Program Time: 4ms/0.5ms (typical)

Detailed Pin Configuration

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

Functional Features

• High-speed data transfer using SPI interface
• Sector erase and byte/page program operations
• Dual and quad I/O modes for faster data transfer
• Software and hardware write protection options
• Deep power-down mode for low-power standby

Advantages

• Large storage capacity for storing vast amounts of data
• Fast read and write speeds enable quick data access
• Low power consumption prolongs battery life in portable devices
• Reliable and durable, with high endurance and data retention
• Compact package size allows for easy integration into various devices

Disadvantages

• Limited write endurance compared to other non-volatile memory types
• Relatively higher cost per bit compared to traditional hard drives

Working Principles

The N25Q128A21BF840E is based on the NOR flash memory technology. It stores data in a grid of memory cells, where each cell consists of a floating-gate transistor. The presence or absence of an electrical charge on the floating gate determines the stored data value (0 or 1). The SPI interface allows for easy communication with the chip, enabling read, write, and erase operations.

Detailed Application Field Plans

• Embedded systems: Used for firmware storage in microcontrollers and IoT devices.
• Automotive electronics: Used for storing system software and data in automotive applications.
• Consumer electronics: Used in smartphones, tablets, and digital cameras for data storage.
• Industrial equipment: Used for program storage in industrial control systems and automation devices.

Detailed and Complete Alternative Models

• N25Q064A13ESE40F
• N25Q256A11EF840E
• N25Q512A13EF840E
• N25Q00AA13GSF40F

(Note: These alternative models offer different capacities and features to suit specific requirements.)

This entry provides an overview of the N25Q128A21BF840E flash memory chip. It includes basic information about its category, use, characteristics, package, and essence. The specifications, pin configuration, functional features, advantages, and disadvantages are also discussed. Additionally, the working principles, application field plans, and alternative models are provided to give a comprehensive understanding of this product.