AT25256A-10PU-2.7

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Non-volatile Memory
• Characteristics:
  • Low-power CMOS technology
  • High-speed performance
  • Wide operating voltage range
  • Small package size
• Package: PDIP (Plastic Dual In-line Package)
• Essence: Serial EEPROM (Electrically Erasable Programmable Read-Only Memory)
• Packaging/Quantity: Tray, 250 units per tray

Specifications

• Memory Size: 256 Kbits (32 Kbytes)
• Organization: 32,768 words x 8 bits
• Operating Voltage Range: 2.7V to 5.5V
• Access Time: 10 microseconds
• Interface: SPI (Serial Peripheral Interface)
• Data Retention: 100 years
• Endurance: 1 million write cycles

Detailed Pin Configuration

The AT25256A-10PU-2.7 has a total of 8 pins arranged as follows:

┌───┬───┐ │ 1 │ 8 │ ├───┼───┤ │ 2 │ 7 │ ├───┼───┤ │ 3 │ 6 │ ├───┼───┤ │ 4 │ 5 │ └───┴───┘

Pin Description: 1. Chip Select (/CS): Active low input used to enable the device. 2. Serial Clock (SCK): 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. Write Protect (/WP): Input used to protect the memory from write operations. 6. VCC: Power supply voltage. 7. Ground (GND): Ground reference. 8. Hold (/HOLD): Input used to pause serial communication.

Functional Features

• Non-volatile memory: Retains data even when power is removed.
• Serial interface: Uses SPI for easy integration with microcontrollers.
• High-speed performance: Access time of 10 microseconds allows for quick data retrieval.
• Low-power consumption: Operates within a wide voltage range while consuming minimal power.
• Write protection: Provides a write protect pin to prevent accidental modification of stored data.

Advantages and Disadvantages

Advantages: - Compact package size enables space-saving designs. - Wide operating voltage range allows for compatibility with various systems. - High endurance ensures reliable and long-lasting data storage. - Low-power CMOS technology reduces power consumption.

Disadvantages: - Limited memory size compared to other EEPROM options. - Requires an external microcontroller or host device for data transfer and control.

Working Principles

The AT25256A-10PU-2.7 utilizes electrically erasable programmable read-only memory (EEPROM) technology. It stores data in non-volatile memory cells that can be electrically programmed and erased. The serial peripheral interface (SPI) allows for easy communication between the device and a microcontroller or host system. Data can be written, read, and erased using specific commands sent through the SPI interface.

Detailed Application Field Plans

The AT25256A-10PU-2.7 is commonly used in various electronic devices and systems, including but not limited to: - Consumer electronics - Automotive applications - Industrial control systems - Medical devices - Communication equipment

Detailed and Complete Alternative Models

Some alternative models to the AT25256A-10PU-2.7 include: - AT25DF256A: 256 Kbit SPI Flash Memory - CAT25C256: 256 Kbit Serial EEPROM - M95010: 128/256 Kbit Serial SPI Bus EEPROM

These alternative models offer similar functionality and can be considered based on specific project requirements.

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