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AT28BV256-20SU-T
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AT28BV256-20SU-T

Product Overview

Category

AT28BV256-20SU-T belongs to the category of non-volatile memory devices.

Use

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

Characteristics

  • Non-volatile: The AT28BV256-20SU-T retains stored data even when power is removed.
  • High capacity: It has a storage capacity of 256 kilobits (32 kilobytes).
  • Low power consumption: The device operates at low power levels, making it suitable for battery-powered applications.
  • Fast access time: It offers a fast access time of 200 nanoseconds.

Package

The AT28BV256-20SU-T is available in a small outline package (SOIC) format.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile storage for electronic systems.

Packaging/Quantity

The AT28BV256-20SU-T is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Memory Type: EEPROM (Electrically Erasable Programmable Read-Only Memory)
  • Organization: 32K x 8 bits
  • Operating Voltage: 2.7V - 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Data Retention: 10 years
  • Endurance: 100,000 write cycles

Detailed Pin Configuration

The AT28BV256-20SU-T has a total of 28 pins, which are assigned specific functions. The pin configuration is as follows:

  1. A16
  2. A15
  3. A12
  4. A7
  5. A6
  6. A5
  7. A4
  8. A3
  9. A2
  10. A1
  11. A0
  12. VCC
  13. OE#
  14. CE#
  15. WE#
  16. I/O0
  17. I/O1
  18. I/O2
  19. I/O3
  20. I/O4
  21. I/O5
  22. I/O6
  23. I/O7
  24. NC
  25. GND
  26. A8
  27. A9
  28. A11

Functional Features

  • Byte-wise Read/Write: The AT28BV256-20SU-T allows individual bytes to be read from or written to.
  • Chip Enable (CE#) Control: The CE# pin enables or disables the device for operation.
  • Output Enable (OE#) Control: The OE# pin controls the output buffers, allowing data to be read from the device.
  • Write Enable (WE#) Control: The WE# pin enables or disables write operations.

Advantages and Disadvantages

Advantages

  • Non-volatile storage: Data is retained even without power.
  • High capacity: Offers ample storage space for various applications.
  • Low power consumption: Suitable for battery-powered devices.
  • Fast access time: Allows for quick retrieval of stored data.

Disadvantages

  • Limited endurance: The device has a finite number of write cycles.
  • Relatively small memory size: May not be sufficient for certain high-capacity applications.

Working Principles

The AT28BV256-20SU-T utilizes EEPROM technology, which allows for electrically erasing and reprogramming of data. It uses a combination of transistors and floating gate cells to store and retrieve digital information.

Detailed Application Field Plans

The AT28BV256-20SU-T finds application in various electronic systems, including but not limited to: - Embedded systems - Consumer electronics - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

  1. AT28C256-15PU: Similar to the AT28BV256-20SU-T, but operates at a slower access time of 150 nanoseconds.
  2. AT28HC256-90PC: Offers a higher endurance of 1,000,000 write cycles, but operates at a slower access time of 900 nanoseconds.
  3. AT28LV256-20JI: Provides low-voltage operation (2.7V - 3.6V) with a fast access time of 200 nanoseconds.

These alternative models offer similar functionality with slight variations in specifications.

In conclusion, the AT28BV256-20SU-T is a non-volatile memory device that provides reliable storage for electronic systems. With its high capacity, low power consumption, and fast access time, it is suitable for various applications in different industries.

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací AT28BV256-20SU-T v technických řešeních

Sure! Here are 10 common questions and answers related to the application of AT28BV256-20SU-T in technical solutions:

  1. Q: What is the AT28BV256-20SU-T? A: The AT28BV256-20SU-T is a 256-kilobit (32K x 8) electrically erasable programmable read-only memory (EEPROM) chip.

  2. Q: What is the operating voltage range for the AT28BV256-20SU-T? A: The AT28BV256-20SU-T operates within a voltage range of 2.7V to 5.5V.

  3. Q: What is the maximum clock frequency supported by the AT28BV256-20SU-T? A: The AT28BV256-20SU-T supports a maximum clock frequency of 20 MHz.

  4. Q: Can the AT28BV256-20SU-T be reprogrammed multiple times? A: Yes, the AT28BV256-20SU-T can be reprogrammed multiple times as it is an electrically erasable memory.

  5. Q: What is the endurance rating of the AT28BV256-20SU-T? A: The AT28BV256-20SU-T has an endurance rating of at least 100,000 erase/write cycles.

  6. Q: Does the AT28BV256-20SU-T require any external power supply sequencing? A: No, the AT28BV256-20SU-T does not require any specific power supply sequencing.

  7. Q: What is the typical access time of the AT28BV256-20SU-T? A: The typical access time of the AT28BV256-20SU-T is 120 ns.

  8. Q: Can the AT28BV256-20SU-T operate in harsh environmental conditions? A: Yes, the AT28BV256-20SU-T is designed to operate in a wide temperature range of -40°C to +85°C.

  9. Q: Does the AT28BV256-20SU-T support hardware data protection? A: Yes, the AT28BV256-20SU-T supports hardware data protection through the use of a write protect pin.

  10. Q: What package does the AT28BV256-20SU-T come in? A: The AT28BV256-20SU-T comes in a 32-lead TSOP (Thin Small Outline Package) with a 0.8mm pitch.

Please note that these answers are based on general information and may vary depending on the specific application and requirements.