AT28HC256F-12JI

Product Overview

Category

AT28HC256F-12JI belongs to the category of high-speed, high-density Electrically Erasable Programmable Read-Only Memory (EEPROM) chips.

Use

This product is commonly used in electronic devices for non-volatile data storage. It allows users to store and retrieve data even when power is turned off.

Characteristics

• High-speed operation
• High-density storage capacity
• Non-volatile memory
• Electrically erasable and programmable
• Reliable and durable

Package

AT28HC256F-12JI is available in a standard 32-pin plastic package.

Essence

The essence of this product lies in its ability to provide reliable and high-speed non-volatile memory storage for various electronic devices.

Packaging/Quantity

AT28HC256F-12JI is typically packaged in reels or trays, with a quantity of 250 units per reel/tray.

Specifications

• Operating Voltage: 2.7V - 5.5V
• Storage Capacity: 256 kilobits (32 kilobytes)
• Access Time: 120 nanoseconds
• Organization: 32,768 words x 8 bits
• Interface: Serial Peripheral Interface (SPI)
• Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. Chip Enable (CE)
2. Output Enable (OE)
3. Write Enable (WE)
4. Address Inputs (A0-A14)
5. Data Inputs/Outputs (DQ0-DQ7)
6. Supply Voltage (VCC)
7. Ground (GND)

(Note: The remaining pins are not listed here for brevity.)

Functional Features

• High-speed read and write operations
• Low power consumption
• Automatic page write and erase capability
• Software and hardware data protection
• Flexible programming options
• High reliability and endurance

Advantages

• Fast access time allows for efficient data retrieval.
• High-density storage capacity meets the demands of modern electronic devices.
• Electrically erasable and programmable nature enables easy updates and modifications.
• Reliable performance ensures data integrity and longevity.
• Low power consumption prolongs battery life in portable devices.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Higher cost per bit compared to traditional Read-Only Memory (ROM) chips.
• Susceptible to data loss in case of power failure during write operations.

Working Principles

AT28HC256F-12JI utilizes EEPROM technology, which allows for electrically erasing and reprogramming data. It stores information in a grid of memory cells that can be individually accessed and modified using electrical signals. The chip's control circuitry manages the read, write, and erase operations, ensuring data integrity and reliability.

Detailed Application Field Plans

AT28HC256F-12JI finds applications in various electronic devices, including but not limited to: - Microcontrollers - Embedded systems - Automotive electronics - Industrial control systems - Consumer electronics

Its high-speed operation, non-volatile memory, and reliable performance make it suitable for applications where data storage and retrieval are critical.

Detailed and Complete Alternative Models

1. AT28C256-15PU: Similar specifications with a slightly slower access time of 150 nanoseconds.
2. AT28HC256E-12SI: Enhanced version with extended temperature range (-40°C to +125°C).
3. AT28HC256-90SU: Higher speed variant with an access time of 90 nanoseconds.

These alternative models offer similar functionality and compatibility, providing options based on specific requirements and constraints.

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