Encyclopedia Entry: 71256SA15PZGI8

Product Information Overview

Category

The 71256SA15PZGI8 belongs to the category of integrated circuits (ICs).

Use

This product is primarily used in electronic devices for data storage and retrieval purposes.

Characteristics

• Integrated circuit type: Static Random Access Memory (SRAM)
• Storage capacity: 71256 bits
• Organization: 32K x 8 bits
• Operating voltage: 5V
• Access time: 150 nanoseconds
• Package type: DIP (Dual In-line Package)
• Pin count: 28 pins

Packaging/Quantity

The 71256SA15PZGI8 is typically packaged in anti-static tubes or trays. The quantity per package varies depending on the supplier, but it is commonly available in quantities of 25 or 50 units.

Specifications

• Supply voltage range: 4.5V to 5.5V
• Standby current: 100 microamps maximum
• Operating temperature range: -40°C to +85°C
• Data retention: More than 10 years
• Output drive capability: 2 TTL loads
• Input/output compatibility: TTL, CMOS

Detailed Pin Configuration

The 71256SA15PZGI8 has a total of 28 pins, each serving a specific function. The pin configuration is as follows:

1. A0: Address input bit 0
2. A1: Address input bit 1
3. A2: Address input bit 2
4. A3: Address input bit 3
5. A4: Address input bit 4
6. A5: Address input bit 5
7. A6: Address input bit 6
8. A7: Address input bit 7
9. A8: Address input bit 8
10. A9: Address input bit 9
11. A10: Address input bit 10
12. A11: Address input bit 11
13. A12: Address input bit 12
14. A13: Address input bit 13
15. A14: Address input bit 14
16. A15: Address input bit 15
17. DQ0: Data input/output bit 0
18. DQ1: Data input/output bit 1
19. DQ2: Data input/output bit 2
20. DQ3: Data input/output bit 3
21. DQ4: Data input/output bit 4
22. DQ5: Data input/output bit 5
23. DQ6: Data input/output bit 6
24. DQ7: Data input/output bit 7
25. CE1: Chip enable input 1
26. CE2: Chip enable input 2
27. WE: Write enable input
28. OE: Output enable input

Functional Features

The 71256SA15PZGI8 offers the following functional features:

• High-speed access time for efficient data retrieval.
• Non-volatile storage capability, ensuring data retention even when power is disconnected.
• Compatibility with TTL and CMOS logic levels, allowing seamless integration with various electronic systems.
• Low standby current consumption, making it suitable for battery-powered devices.
• Robust output drive capability, enabling reliable communication with other components.

Advantages and Disadvantages

Advantages

• Fast access time enhances overall system performance.
• Non-volatile storage ensures data integrity during power interruptions.
• Compatibility with multiple logic levels simplifies integration into different circuit designs.
• Low standby current consumption prolongs battery life in portable applications.

Disadvantages

• Relatively small storage capacity compared to modern memory devices.
• Limited operating temperature range may restrict usage in extreme environments.

Working Principles

The 71256SA15PZGI8 operates based on the principles of static random access memory (SRAM). It utilizes a combination of flip-flops and logic gates to store and retrieve data. When powered, the chip maintains the stored information as long as power is supplied. The address inputs determine the location where data is read from or written to, while the control inputs (CE1, CE2, WE, OE) manage the timing and functionality of the memory operations.

Detailed Application Field Plans

The 71256SA15PZGI8 finds applications in various electronic systems that require reliable and fast data storage. Some common application fields include:

1. Microcontrollers: Used as additional memory for program code storage or data buffering.
2. Communication Systems: Employed for temporary data storage in networking equipment or data communication modules.
3. Industrial Control Systems: Utilized for storing configuration parameters, sensor data, or intermediate results in control units.
4. Medical Devices: Integrated into medical instruments for data