DS1743-85IND+ - English Editing Encyclopedia Entry

Product Overview

Category

The DS1743-85IND+ belongs to the category of non-volatile static RAM (NVSRAM) integrated circuits.

Use

This product is commonly used for data storage in applications that require both non-volatility and high-speed read/write operations.

Characteristics

• Non-volatile: The DS1743-85IND+ retains data even when power is removed.
• High-speed operation: It offers fast read and write access times.
• Low power consumption: The device operates at low power levels, making it suitable for battery-powered applications.

Package

The DS1743-85IND+ is available in a standard 28-pin DIP (Dual Inline Package).

Essence

The essence of the DS1743-85IND+ lies in its ability to combine the benefits of non-volatile memory with the speed and convenience of random access memory (RAM).

Packaging/Quantity

The DS1743-85IND+ is typically sold in reels or tubes, with a quantity of 100 units per package.

Specifications

• Memory Size: 8,192 bytes
• Supply Voltage: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: Up to 10 years
• Write Endurance: 1 million cycles

Detailed Pin Configuration

The DS1743-85IND+ has a total of 28 pins, each serving a specific function. Here is a brief overview of the pin configuration:

1. VCC: Power supply voltage
2. GND: Ground reference
3. CE: Chip Enable
4. OE: Output Enable
5. WE: Write Enable
6. A0-A12: Address inputs
7. DQ0-DQ7: Data inputs/outputs
8. SQW/INT: Square Wave Output/Interrupt output
9. RST: Reset input
10. VBAT: Battery backup voltage

Functional Features

• Non-volatile data storage: The DS1743-85IND+ retains data even when power is lost.
• High-speed access: It offers fast read and write operations, comparable to traditional RAM.
• Automatic switchover: The device seamlessly switches between battery backup and main power supply.
• Integrated real-time clock: The DS1743-85IND+ includes a built-in clock for timekeeping applications.

Advantages and Disadvantages

Advantages

• Non-volatile memory eliminates the need for external backup systems.
• High-speed operation allows for efficient data access.
• Low power consumption extends battery life in portable devices.
• Integrated real-time clock simplifies timekeeping applications.

Disadvantages

• Limited memory size compared to other storage solutions.
• Relatively higher cost per byte compared to traditional RAM.

Working Principles

The DS1743-85IND+ combines non-volatile memory technology with a static RAM design. It utilizes a small onboard battery to provide backup power, ensuring that data remains intact even during power outages. The device employs a combination of volatile and non-volatile memory cells to achieve high-speed read and write operations while maintaining data integrity.

Detailed Application Field Plans

The DS1743-85IND+ finds applications in various fields, including:

1. Industrial automation: Used for storing critical data in control systems.
2. Automotive electronics: Provides reliable data storage for vehicle diagnostics and event logging.
3. Medical equipment: Ensures data integrity in medical devices such as patient monitors and diagnostic equipment.
4. Aerospace and defense: Used in avionics systems for storing mission-critical information.

Detailed and Complete Alternative Models

1. DS1234-85IND+: Similar to the DS1743-85IND+, but with a smaller memory size of 4,096 bytes.
2. DS1845-85IND+: Offers a larger memory size of 16,384 bytes, suitable for applications requiring more storage capacity.
3. DS2643-85IND+: Provides extended temperature range (-55°C to +125°C) for use in harsh environments.

These alternative models offer similar functionality to the DS1743-85IND+ but cater to different memory requirements and operating conditions.

In conclusion, the DS1743-85IND+ is a non-volatile static RAM integrated circuit that combines the benefits of non-volatility and high-speed operation. It finds applications in various industries and offers advantages such as data retention, fast access times, low power consumption, and an integrated real-time clock. While it has limitations in terms of memory size and cost, alternative models are available to suit different requirements.