AT28HC256E-12SU-202

Product Overview

Category

AT28HC256E-12SU-202 belongs to the category of high-speed, low-power Electrically Erasable Programmable Read-Only Memory (EEPROM) chips.

Use

This product is commonly used in electronic devices for non-volatile data storage. It allows for easy and efficient retrieval of stored information even when power is turned off.

Characteristics

• High-speed operation: The AT28HC256E-12SU-202 offers fast read and write operations, making it suitable for applications that require quick access to data.
• Low power consumption: This EEPROM chip is designed to minimize power usage, making it ideal for battery-powered devices.
• Large storage capacity: With a capacity of 256 kilobits, this chip can store a significant amount of data.
• Reliable data retention: The AT28HC256E-12SU-202 ensures data integrity with its excellent data retention capabilities.

Package

The AT28HC256E-12SU-202 comes in a small form factor package, which makes it suitable for space-constrained applications. It is available in a surface-mount package (SOIC) with 8 pins.

Essence

The essence of the AT28HC256E-12SU-202 lies in its ability to provide reliable and efficient non-volatile data storage in a compact package.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Operating voltage: 2.7V to 5.5V
• Access time: 120 ns
• Standby current: 10 µA
• Write cycle endurance: 100,000 cycles
• Data retention: 10 years

Detailed Pin Configuration

The AT28HC256E-12SU-202 has 8 pins, which are assigned specific functions:

1. Chip Enable (CE): Enables the chip for read/write operations.
2. Output Enable (OE): Controls the output buffer.
3. Write Enable (WE): Enables write operations.
4. Address Inputs (A0-A14): Selects the memory location for read/write operations.
5. Data Input/Output (I/O0-I/O7): Bi-directional data bus for input/output operations.
6. Supply Voltage (VCC): Power supply input.
7. Ground (GND): Ground reference.
8. Chip Select (CS): Selects the chip when multiple devices are connected.

Functional Features

• High-speed operation allows for quick access to stored data.
• Low power consumption ensures efficient use of energy.
• Reliable data retention guarantees long-term storage integrity.
• Easy integration into various electronic devices due to its compact form factor.

Advantages and Disadvantages

Advantages

• Fast read and write operations enhance overall system performance.
• Low power consumption prolongs battery life in portable devices.
• Large storage capacity accommodates a significant amount of data.
• Compact package size enables usage in space-constrained applications.

Disadvantages

• Limited endurance of write cycles may affect the lifespan of the chip.
• Higher cost compared to other non-volatile memory options.
• Requires external components for proper operation.

Working Principles

The AT28HC256E-12SU-202 utilizes EEPROM technology, which allows for electrically erasing and reprogramming of data. It stores information in a grid of memory cells, with each cell capable of holding one bit of data. The chip uses electrical signals to read, write, and erase data from these cells, providing non-volatile storage capabilities.

Detailed Application Field Plans

The AT28HC256E-12SU-202 finds application in various electronic devices, including but not limited to: - Consumer electronics: Used in digital cameras, MP3 players, and portable gaming devices for data storage. - Automotive systems: Employed in car audio systems, navigation units, and engine control modules for storing critical information. - Industrial equipment: Utilized in programmable logic controllers (PLCs), measurement instruments, and automation systems for data logging and configuration storage.

Detailed and Complete Alternative Models

1. AT28C256-15PU: Similar EEPROM chip with a slower access time of 150 ns.
2. AT28HC256E-12PI: Pin-compatible alternative with a DIP package instead of SOIC.
3. AT28HC256E-12SI: Surface-mount version with a different pin configuration.

These alternative models offer similar functionality and can be used as replacements for the AT28HC256E-12SU-202 depending on specific requirements.

In conclusion, the AT28HC256E-12SU-202 is a high-speed, low-power EEPROM chip that provides reliable non-volatile data storage. Its compact size, large storage capacity, and efficient operation make it suitable for various electronic applications