AT28HC256F-12TA

Product Overview

Category

AT28HC256F-12TA 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 interface with other electronic components

Package

AT28HC256F-12TA is available in a compact and industry-standard 32-pin Thin Small Outline Package (TSOP).

Essence

The essence of AT28HC256F-12TA lies in its ability to provide reliable and non-volatile data storage in a high-speed and low-power manner, making it suitable for a wide range of applications.

Packaging/Quantity

AT28HC256F-12TA is typically packaged in reels or tubes, with each package containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Memory Size: 256 kilobits (32 kilobytes)
• Organization: 32K x 8 bits
• Operating Voltage: 2.7V - 5.5V
• Access Time: 120 ns
• Standby Current: 100 μA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AT28HC256F-12TA chip has a total of 32 pins, which are assigned specific functions. Here is the detailed pin configuration:

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. A8 - Address Input
10. A9 - Address Input
11. A10 - Address Input
12. A11 - Address Input
13. A12 - Address Input
14. A13 - Address Input
15. A14 - Address Input
16. A15 - Address Input
17. /OE - Output Enable
18. /WE - Write Enable
19. /CE - Chip Enable
20. VSS - Ground
21. DQ0 - Data Input/Output
22. DQ1 - Data Input/Output
23. DQ2 - Data Input/Output
24. DQ3 - Data Input/Output
25. DQ4 - Data Input/Output
26. DQ5 - Data Input/Output
27. DQ6 - Data Input/Output
28. DQ7 - Data Input/Output
29. VCC - Power Supply
30. NC - No Connection
31. NC - No Connection
32. /WP - Write Protect

Functional Features

• High-speed operation allows for fast data access and transfer.
• Low power consumption ensures efficient use of energy in electronic devices.
• Non-volatile memory retains data even when power is disconnected.
• Large storage capacity provides ample space for storing data.
• Easy interface with other electronic components simplifies integration into various systems.

Advantages and Disadvantages

Advantages

• Fast operation speed enables quick data retrieval and processing.
• Low power consumption prolongs battery life in portable devices.
• Non-volatile memory ensures data integrity during power cycles.
• Ample storage capacity accommodates a wide range of applications.
• Easy integration simplifies the design and development process.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively higher cost per unit compared to some alternative memory options.

Working Principles

AT28HC256F-12TA utilizes EEPROM technology, which allows for electrically erasing and reprogramming of data. The chip stores data in a grid of memory cells, with each cell capable of holding one bit of information. When data needs to be written or read, specific addresses are accessed using the address lines. The /CE (Chip Enable), /WE (Write Enable), and /OE (Output Enable) pins control the read and write operations.

Detailed Application Field Plans

AT28HC256F-12TA finds applications in various fields, including but not limited to:

1. Microcontrollers: Used for storing firmware, configuration data, and program code.
2. Computers: Employed in BIOS chips and non-volatile memory modules.
3. Consumer Electronics: Utilized in devices such as smart TVs, set-top boxes, and gaming consoles for data storage purposes.
4. Automotive: Integrated into electronic control units (ECUs) for storing critical data and firmware. 5