DS1225AB-170+ - English Editing Encyclopedia Entry

Product Overview

Category

The DS1225AB-170+ belongs to the category of non-volatile memory devices.

Use

This product is primarily used for storing and retrieving data in electronic systems, such as computers, embedded systems, and consumer electronics.

Characteristics

• Non-volatile: The DS1225AB-170+ retains stored data even when power is removed.
• High capacity: It offers a storage capacity of 1,048,576 bits (128 kilobytes).
• Fast access time: The device provides quick access to stored data, ensuring efficient operation.
• Low power consumption: The DS1225AB-170+ is designed to consume minimal power during operation.
• Durable: It has a long lifespan and can withstand harsh environmental conditions.

Package and Quantity

The DS1225AB-170+ is available in a standard 28-pin DIP (Dual In-line Package) format. It is typically sold individually or in packs of multiple units.

Specifications

• Memory Capacity: 1,048,576 bits (128 kilobytes)
• Access Time: 170 nanoseconds
• Supply Voltage: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: Minimum of 10 years

Pin Configuration

The DS1225AB-170+ features a 28-pin DIP package with the following pin configuration:

Pin Name Description 1 A16 Address Input 2 A15 Address Input 3 A12 Address Input 4 A7 Address Input 5 A6 Address Input 6 A5 Address Input 7 A4 Address Input 8 A3 Address Input 9 A2 Address Input 10 A1 Address Input 11 A0 Address Input 12 CE Chip Enable Input 13 OE Output Enable Input 14 WE Write Enable Input 15 VSS Ground 16 DQ0 Data Input/Output 17 DQ1 Data Input/Output 18 DQ2 Data Input/Output 19 DQ3 Data Input/Output 20 DQ4 Data Input/Output 21 DQ5 Data Input/Output 22 DQ6 Data Input/Output 23 DQ7 Data Input/Output 24 NC No Connection 25 VCC Power Supply 26 RST Reset Input 27 WP Write Protect Input 28 NC No Connection

Functional Features

• Non-volatile storage: The DS1225AB-170+ retains data even when power is disconnected.
• Random access: It allows for direct access to any memory location, enabling efficient data retrieval.
• High-speed operation: With an access time of 170 nanoseconds, it ensures fast data transfer.
• Easy integration: The device can be easily integrated into various electronic systems due to its standard pin configuration.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention without the need for continuous power supply.
• High storage capacity enables the storage of a significant amount of data.
• Fast access time allows for quick retrieval of stored information.
• Low power consumption contributes to energy efficiency.

Disadvantages

• Limited storage capacity compared to some modern non-volatile memory technologies.
• Relatively slower access time compared to certain contemporary memory devices.

Working Principles

The DS1225AB-170+ utilizes a combination of CMOS (Complementary Metal-Oxide-Semiconductor) and EEPROM (Electrically Erasable Programmable Read-Only Memory) technologies. It stores data in a matrix of memory cells, with each cell representing a bit of information. The device uses electrical signals to read, write, and erase data from these cells.

Detailed Application Field Plans

The DS1225AB-170+ finds applications in various fields, including: 1. Computer systems: Used for storing BIOS (Basic Input/Output System) firmware and configuration data. 2. Embedded systems: Employed for non-volatile storage of critical system parameters and program code. 3. Consumer electronics: Utilized in devices like gaming consoles, set-top boxes, and digital cameras for data storage purposes.

Alternative Models

Below are some alternative models that offer similar functionality:

1. DS1230AB-200+: Offers a higher access time of 200 nanoseconds but provides a larger storage capacity of 256 kilobytes.
2. DS1216E-120+: Provides a lower access time of 120 nanoseconds but offers a smaller storage capacity of 64 kilobytes.
3. DS1245