AT28HC256F-90TA

Product Overview

Category

AT28HC256F-90TA belongs to the category of high-speed, low-power Electrically Erasable Programmable Read-Only Memory (EEPROM) chips.

Use

This product is primarily used for non-volatile data storage in various electronic devices such as microcontrollers, computers, and consumer electronics.

Characteristics

• High-speed operation
• Low power consumption
• Non-volatile memory
• Large storage capacity
• Reliable data retention
• Easy to program and erase

Package

AT28HC256F-90TA is available in a standard 32-pin Thin Small Outline Package (TSOP).

Essence

The essence of AT28HC256F-90TA lies in its ability to provide reliable and high-speed non-volatile memory storage for electronic devices.

Packaging/Quantity

AT28HC256F-90TA is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Operating Voltage: 2.7V - 5.5V
• Access Time: 90ns
• Organization: 32K x 8 bits
• Endurance: 100,000 write cycles
• Data Retention: 10 years
• Interface: Serial Peripheral Interface (SPI)

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: Pin numbers may vary depending on the package type.)

Functional Features

• Byte-wise programmability
• Sector erase capability
• Software and hardware protection mechanisms
• Fast page write mode
• Automatic sleep mode for power saving

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient data access.
• Low power consumption helps in extending battery life.
• Non-volatile memory ensures data retention even during power loss.
• Large storage capacity accommodates a wide range of applications.
• Easy programming and erasing make it user-friendly.

Disadvantages

• Limited endurance compared to other non-volatile memory technologies.
• Relatively higher cost per bit compared to some alternative memory options.

Working Principles

AT28HC256F-90TA utilizes EEPROM technology, which allows for electrically erasing and reprogramming data. It stores information in floating gate transistors, which can retain charge even when power is removed. The stored data can be read, written, or erased using specific voltage levels applied to the control pins.

Detailed Application Field Plans

AT28HC256F-90TA finds applications in various fields, including: 1. Microcontrollers and embedded systems 2. Automotive electronics 3. Industrial automation 4. Medical devices 5. Communication equipment

Detailed and Complete Alternative Models

Some alternative models to AT28HC256F-90TA include: - AT28C256-15PU - 25LC256-I/SN - M95640-WMN6TP

(Note: This list is not exhaustive and there may be other suitable alternatives available.)

In conclusion, AT28HC256F-90TA is a high-speed, low-power EEPROM chip that offers reliable non-volatile memory storage for a wide range of electronic devices. Its characteristics, functional features, and application field plans make it a versatile choice for various industries. While it has advantages such as fast operation and easy programming, it also has limitations in terms of endurance and cost. Nonetheless, AT28HC256F-90TA remains a valuable component in modern electronic systems.

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