AT28BV64B-20TA

Product Overview

Category

AT28BV64B-20TA belongs to the category of non-volatile memory devices.

Use

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

Characteristics

• Non-volatile: The AT28BV64B-20TA retains stored data even when power is removed.
• High capacity: It has a storage capacity of 64 kilobits (8 kilobytes).
• Fast access time: The device offers a fast access time of 200 nanoseconds.
• Low power consumption: It operates at low power, making it suitable for battery-powered devices.

Package

The AT28BV64B-20TA comes in a standard 28-pin Thin Small Outline Package (TSOP).

Essence

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

Packaging/Quantity

The AT28BV64B-20TA is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Memory Type: EEPROM (Electrically Erasable Programmable Read-Only Memory)
• Organization: 8K x 8 bits
• Operating Voltage: 2.7V - 3.6V
• Access Time: 200 ns
• Interface: Parallel
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years

Detailed Pin Configuration

The AT28BV64B-20TA has a total of 28 pins, which are assigned specific functions. The pin configuration is as follows:

1. A0 - Address Input
2. A1 - Address Input
3. A2 - Address Input
4. A3 - Address Input
5. A4 - Address Input
6. A5 - Address Input
7. A6 - Address Input
8. A7 - Address Input
9. VSS - Ground
10. CE - Chip Enable
11. OE - Output Enable
12. WE - Write Enable
13. I/O0 - Data Input/Output
14. I/O1 - Data Input/Output
15. I/O2 - Data Input/Output
16. I/O3 - Data Input/Output
17. I/O4 - Data Input/Output
18. I/O5 - Data Input/Output
19. I/O6 - Data Input/Output
20. I/O7 - Data Input/Output
21. NC - No Connection
22. NC - No Connection
23. NC - No Connection
24. VCC - Power Supply
25. RP - Ready/Busy Output
26. WP - Write Protect Input
27. NC - No Connection
28. NC - No Connection

Functional Features

• Byte-Writable: The AT28BV64B-20TA allows individual bytes to be written or erased.
• In-System Programmable: It can be programmed while in the target system, eliminating the need for removal and reprogramming.
• Hardware Data Protection: The device features a write protect pin (WP) that prevents accidental writes.
• Ready/Busy Output: The ready/busy pin (RP) indicates the status of the internal write cycle.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High storage capacity for various applications.
• Fast access time enables quick data retrieval.
• Low power consumption extends battery life in portable devices.

Disadvantages

• Limited rewrite cycles compared to other types of memory.
• Relatively higher cost per bit compared to volatile memory.

Working Principles

The AT28BV64B-20TA utilizes EEPROM technology, which allows for electrically erasing and reprogramming of data. It stores information in a grid of memory cells that can be individually addressed and modified using electrical signals.

Detailed Application Field Plans

The AT28BV64B-20TA finds applications in various electronic systems, including but not limited to: - Embedded systems - Consumer electronics - Automotive electronics - Industrial control systems - Medical devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the AT28BV64B-20TA include: - AT28C64B-20PU: 64 kilobit parallel EEPROM with a DIP package. - AT28HC64B-12PC: 64 kilobit high-speed parallel EEPROM with a DIP package. - AT28BV64B-25SC: 64 kilobit parallel EEPROM with extended temperature range.

These alternative models provide options based on different package types, operating characteristics, and temperature ranges.

In conclusion, the AT28BV64B-20TA is a non-volatile memory device with a high storage capacity and fast access time. It