AT29C256-70JI

Product Overview

Category

AT29C256-70JI belongs to the category of non-volatile memory integrated circuits.

Use

It is primarily used for storing and retrieving digital information in electronic devices.

Characteristics

• Non-volatile: Retains data even when power is turned off.
• High storage capacity: 256 kilobits (32 kilobytes) of memory.
• Fast access time: Operates at a speed of 70 nanoseconds.
• Low power consumption: Efficient energy usage.
• Durable: Can withstand multiple read and write cycles without degradation.

Package

AT29C256-70JI is available in a standard JEDEC 32-lead PLCC package.

Essence

The essence of AT29C256-70JI lies in its ability to provide reliable and non-volatile storage for electronic devices, ensuring data integrity and quick access.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each containing a specific quantity of AT29C256-70JI chips. The exact quantity may vary depending on the supplier.

Specifications

• Memory Capacity: 256 kilobits (32 kilobytes)
• Access Time: 70 nanoseconds
• Supply Voltage: 5V ±10%
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 20 years

Detailed Pin Configuration

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

Functional Features

• Byte-wide access: Allows individual bytes to be read or written.
• Chip enable (CE#) pin: Enables or disables the chip for operation.
• Output enable (OE#) pin: Controls the output buffer.
• Write enable (WE#) pin: Enables or disables write operations.
• Automatic page write: Simplifies programming by allowing multiple bytes to be written at once.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• Fast access time allows for quick retrieval of stored information.
• Low power consumption contributes to energy efficiency.
• Durable design withstands frequent read and write cycles.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively slower access time compared to some modern memory devices.
• Requires external control signals for proper operation.

Working Principles

AT29C256-70JI utilizes a floating-gate MOSFET technology to store digital information. The memory cells consist of transistors that can be electrically programmed and erased. When a specific voltage is applied, charges are trapped in the floating gate, representing either a "0" or a "1". These charges can be read back later to retrieve the stored data.

Detailed Application Field Plans

AT29C256-70JI finds applications in various electronic devices, including but not limited to: - Microcontrollers - Embedded systems - Industrial automation equipment - Communication devices - Automotive electronics

Detailed and Complete Alternative Models

• AT29C256-90JI: Similar to AT29C256-70JI but with a faster access time of 90 nanoseconds.
• AT29C256-12PC: A parallel interface version of the AT29C256 series, operating at 12 volts.

These alternative models offer similar functionality and compatibility with different system requirements.

In conclusion, AT29C256-70JI is a non-volatile memory integrated circuit that provides reliable storage for electronic devices. With its high capacity, fast access time, and low power consumption, it offers advantages in various applications. However, it has limitations in terms of storage capacity and access speed compared to newer memory technologies. Nonetheless, it remains a popular choice for many embedded systems and microcontroller-based applications.