AT28C64X-25SI

Product Overview

Category

AT28C64X-25SI belongs to the category of non-volatile memory devices.

Use

It is primarily used for storing and retrieving digital information in electronic systems.

Characteristics

• Non-volatile: Retains data even when power is turned off.
• High storage capacity: 64 kilobits (8 kilobytes).
• Fast access time: Operates at a speed of 250 nanoseconds.
• Low power consumption: Designed to minimize energy usage.
• Durable: Can withstand multiple read and write cycles without degradation.

Package

AT28C64X-25SI is available in a Small-Outline Integrated Circuit (SOIC) package.

Essence

The essence of AT28C64X-25SI lies in its ability to provide reliable and non-volatile storage for electronic systems, ensuring data integrity even during power interruptions.

Packaging/Quantity

AT28C64X-25SI is typically packaged in reels or tubes, with each reel containing a specific quantity of devices. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Memory Capacity: 64 kilobits (8 kilobytes)
• Access Time: 250 nanoseconds
• Supply Voltage: 2.7V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years
• Endurance: 1,000,000 write cycles

Detailed Pin Configuration

The AT28C64X-25SI has a total of 28 pins, which are assigned specific functions as follows:

1. A0-A12: Address Inputs
2. CE: Chip Enable Input
3. OE: Output Enable Input
4. WE: Write Enable Input
5. I/O0-I/O7: Data Input/Output
6. VCC: Supply Voltage
7. GND: Ground

Functional Features

• Random Access: Allows data to be read from or written to any location within the memory.
• Byte-Writable: Enables individual bytes to be modified without affecting the rest of the memory contents.
• Chip Enable Control: Provides flexibility in enabling or disabling the memory device.
• Output Enable Control: Allows the output data to be enabled or disabled as needed.
• Write Enable Control: Facilitates write operations by enabling or disabling the memory for writing.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention even during power loss.
• High storage capacity suitable for various applications.
• Fast access time allows for quick retrieval of data.
• Low power consumption helps conserve energy.
• Durable design withstands multiple read and write cycles.

Disadvantages

• Limited storage capacity compared to other memory devices.
• Relatively slower access time compared to some modern memory technologies.
• Requires additional circuitry for interfacing with microcontrollers or processors.

Working Principles

AT28C64X-25SI utilizes a technology called Electrically Erasable Programmable Read-Only Memory (EEPROM). It stores data using electrically isolated floating-gate transistors, which can be programmed or erased through specific voltage levels applied to the control inputs. The stored information remains intact even when power is removed.

Detailed Application Field Plans

AT28C64X-25SI finds application in various electronic systems, including but not limited to: - Embedded systems - Microcontrollers - Industrial automation - Automotive electronics - Consumer electronics

Its non-volatile nature and moderate storage capacity make it suitable for storing firmware, configuration data, calibration values, and other critical information in these applications.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to AT28C64X-25SI include: - AT28C256: Higher capacity EEPROM with 256 kilobits (32 kilobytes) of storage. - AT29C010A: Flash memory device with 1 megabit (128 kilobytes) of storage. - AT24C04: Serial EEPROM with 4 kilobits (512 bytes) of storage.

These alternative models provide options for different storage capacities and technologies, allowing designers to choose the most suitable solution for their specific requirements.

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