25AA256/S16K

Product Overview

Category: Integrated Circuits (ICs)

Use: Non-volatile Serial EEPROM Memory

Characteristics: - Low-power CMOS technology - High-speed clock frequency - Wide operating voltage range - Small form factor - Reliable data retention - High endurance

Package: SOP-8 (Small Outline Package)

Essence: The 25AA256/S16K is a non-volatile serial EEPROM memory chip that provides reliable and high-performance data storage in various electronic devices.

Packaging/Quantity: The 25AA256/S16K is typically sold in reels or tubes, with each reel/tube containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Memory Size: 256 Kbits (32 Kbytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage Range: 1.8V to 5.5V
• Clock Frequency: Up to 10 MHz
• Write Endurance: 1 Million cycles
• Data Retention: 200 Years
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 25AA256/S16K features an SOP-8 package with the following pin configuration:

┌───┬───┐ │ 1 │ 2 │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ 8 │ 7 │ └───┴───┘

Pin Description: 1. Chip Select (CS) 2. Serial Clock (SCK) 3. Serial Data Input/Output (SDI/SDO) 4. Ground (GND) 5. Write Protect (WP) 6. Hold (HOLD) 7. VCC (Power Supply) 8. Not Connected (NC)

Functional Features

• Byte and Page-level Read and Write Operations
• Software and Hardware Write Protection
• Sequential Read Mode for Fast Data Retrieval
• Self-timed Erase and Write Cycles
• Power-on Reset and Software Reset Functions
• Low-power Standby Mode
• 32-byte Page Buffer for Efficient Data Transfer

Advantages and Disadvantages

Advantages: - High-speed data transfer - Wide operating voltage range allows compatibility with various systems - Reliable data retention and high endurance - Small form factor enables integration in space-constrained designs - Software and hardware write protection options enhance data security

Disadvantages: - Limited storage capacity compared to larger EEPROM memory chips - Requires an external microcontroller or host device for communication and control

Working Principles

The 25AA256/S16K utilizes the Serial Peripheral Interface (SPI) protocol for communication with a microcontroller or host device. It stores data in non-volatile memory cells, allowing information to be retained even when power is removed. The chip supports byte and page-level read and write operations, enabling efficient data manipulation.

Detailed Application Field Plans

The 25AA256/S16K finds applications in various electronic devices that require non-volatile memory storage, such as: - Consumer electronics (e.g., smartphones, tablets, digital cameras) - Automotive systems (e.g., infotainment systems, engine control units) - Industrial equipment (e.g., measurement devices, control systems) - Medical devices (e.g., patient monitoring systems, diagnostic equipment) - Communication devices (e.g., routers, modems)

Detailed and Complete Alternative Models

Some alternative models to the 25AA256/S16K include: - AT25080A (Atmel) - CAT24C256 (ON Semiconductor) - M95040-WMN6TP (STMicroelectronics) - FM24CL64B-GTR (Cypress Semiconductor)

These alternative models offer similar functionality and specifications, providing options for different design requirements.

Note: The content provided above is a sample structure for an encyclopedia entry on the 25AA256/S16K. Additional information and details can be added as per specific requirements.