AT28HC256F-70TI

Product Overview

Category

AT28HC256F-70TI 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, embedded systems, and consumer electronics.

Characteristics

• High-speed operation: The AT28HC256F-70TI offers fast read and write access times, making it suitable for applications requiring quick data retrieval.
• Low power consumption: This EEPROM chip is designed to minimize power consumption, making it ideal for battery-powered devices.
• Large storage capacity: With a capacity of 256 kilobits (32 kilobytes), this chip provides ample space for storing critical data.
• Reliable data retention: The AT28HC256F-70TI ensures data integrity with a guaranteed minimum retention time of 10 years.

Package

The AT28HC256F-70TI comes in a compact Thin Small Outline Package (TSOP) with 28 pins. This package offers a small footprint, making it suitable for space-constrained applications.

Essence

The essence of AT28HC256F-70TI lies in its ability to provide reliable, high-speed, and low-power data storage solutions for a wide range of electronic devices.

Packaging/Quantity

This product is typically available in reels or trays, with a standard quantity of 2500 units per reel.

Specifications

• Operating voltage: 2.7V to 5.5V
• Access time: 70 nanoseconds
• Organization: 32K x 8 bits
• Interface: Serial Peripheral Interface (SPI)
• Write endurance: 100,000 cycles
• Data retention: 10 years

Detailed Pin Configuration

1. Chip Enable (CE)
2. Output Enable (OE)
3. Write Enable (WE)
4. Serial Data Input (SI)
5. Serial Data Output (SO)
6. Serial Clock (SCK)
7. Address Inputs (A0-A14)
8. Power Supply (VCC)
9. Ground (GND)

Functional Features

• High-speed data transfer: The AT28HC256F-70TI supports fast serial data transfer using the SPI interface, enabling efficient communication with the host device.
• Flexible write protection: This chip provides software and hardware write protection mechanisms to prevent accidental modification or erasure of stored data.
• Sector erase capability: The AT28HC256F-70TI allows for sector-wise erasure, providing flexibility in managing memory space.
• Automatic page write: With automatic page write functionality, this EEPROM chip simplifies the programming process by allowing multiple bytes to be written at once.

Advantages and Disadvantages

Advantages

• High-speed operation enables quick data access.
• Low power consumption prolongs battery life in portable devices.
• Large storage capacity accommodates extensive data requirements.
• Reliable data retention ensures long-term integrity.

Disadvantages

• Limited write endurance may restrict certain high-write applications.
• Higher cost compared to traditional non-volatile memory options.

Working Principles

The AT28HC256F-70TI utilizes EEPROM technology, which allows for electrically erasing and reprogramming data. It stores information in a grid of memory cells that can be individually addressed and modified using electrical signals. The chip's control circuitry manages the read, write, and erase operations, ensuring reliable and efficient data storage.

Detailed Application Field Plans

The AT28HC256F-70TI finds application in various fields, including but not limited to: 1. Microcontrollers: Used for program storage and data logging in microcontroller-based systems. 2. Embedded Systems: Provides non-volatile memory for critical data storage in embedded systems like industrial control systems and IoT devices. 3. Consumer Electronics: Enables firmware storage, configuration settings, and data logging in devices such as smart TVs, set-top boxes, and gaming consoles.

Detailed and Complete Alternative Models

1. AT28C256-15PU: A similar EEPROM chip with a slower access time of 150 nanoseconds but lower cost.
2. AT24C256C-SSHL-T: An I2C-compatible EEPROM chip with the same storage capacity and low power consumption.
3. M95640-WMN6TP: A SPI-based EEPROM chip with a smaller storage capacity of 64 kilobits but faster access time of 20 nanoseconds.

(Note: The above alternative models are provided for reference and may have different specifications and features. It is recommended to consult the respective datasheets for detailed information.)

In conclusion, the AT28HC256F-70TI is a high-speed, low-power EEPROM chip that offers reliable data storage solutions for various electronic devices. With its large storage capacity, fast access times, and low power consumption, it