Encyclopedia Entry: 71256L85TDB

Product Information Overview

Category: Integrated Circuit (IC)

Use: The 71256L85TDB is a high-performance memory chip designed for use in electronic devices that require large storage capacity and fast data access. It is commonly used in applications such as computer systems, telecommunications equipment, and consumer electronics.

Characteristics: - High storage capacity - Fast data access speed - Low power consumption - Reliable performance - Compact package size

Package: The 71256L85TDB is available in a small outline integrated circuit (SOIC) package. This package provides protection to the internal components of the chip and allows for easy integration into various electronic devices.

Essence: The essence of the 71256L85TDB lies in its ability to store and retrieve large amounts of data quickly and efficiently. It is a crucial component in modern electronic systems that rely on high-speed data processing.

Packaging/Quantity: The 71256L85TDB is typically sold in reels or trays containing multiple units. The exact quantity may vary depending on the manufacturer's packaging specifications.

Specifications

• Memory Type: Random Access Memory (RAM)
• Capacity: 71256 kilobits (88,944 bytes)
• Organization: 32K x 8 bits
• Supply Voltage: 3.3V
• Access Time: 85 nanoseconds
• Operating Temperature Range: -40°C to +85°C
• Pin Count: 28

Detailed Pin Configuration

The 71256L85TDB features a total of 28 pins, each serving a specific function. Here is a 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. CE1: Chip Enable Input
18. CE2: Chip Enable Input
19. OE: Output Enable Input
20. WE: Write Enable Input
21. I/O0: Data Input/Output
22. I/O1: Data Input/Output
23. I/O2: Data Input/Output
24. I/O3: Data Input/Output
25. I/O4: Data Input/Output
26. I/O5: Data Input/Output
27. Vcc: Power Supply
28. GND: Ground

Functional Features

The 71256L85TDB offers the following functional features:

• High-speed data access: The chip provides fast access to stored data, allowing for efficient retrieval and processing.
• Low power consumption: It is designed to operate with minimal power requirements, making it suitable for battery-powered devices.
• Reliable performance: The memory chip ensures data integrity and stability, minimizing the risk of errors or data loss.
• Easy integration: Its compact package size and standardized pin configuration facilitate seamless integration into various electronic systems.

Advantages and Disadvantages

Advantages: - Large storage capacity - Fast data access speed - Low power consumption - Reliable performance - Compact package size

Disadvantages: - Limited compatibility with certain older systems that require different memory interfaces - Higher cost compared to lower-capacity memory chips

Working Principles

The 71256L85TDB operates based on the principles of random access memory (RAM). It stores data in a matrix of memory cells, each identified by a unique address. The chip uses a combination of address inputs, control signals, and data input/output lines to read from or write to specific memory locations.

When a read operation is initiated, the chip receives an address signal and activates the necessary circuitry to retrieve the corresponding data from the specified memory cell. Similarly, during a write operation, the chip accepts the address and data inputs, storing the provided data in the designated memory location.

Detailed Application Field Plans

The 71256L85TDB finds extensive application in various electronic systems that require high-speed data storage and retrieval capabilities. Some detailed application field plans include:

1. Computer Systems:

   • Main memory in desktop computers, servers, and workstations.
   • Cache memory in microprocessors for faster data access.

2. Telecommunications Equipment:

   • Network routers and switches for buffering and caching data packets.
   • Base stations and wireless communication devices for storing configuration data.

3. Consumer Electronics: