DS1747W-120+ - English Editing Encyclopedia Entry

Product Overview

Category

The DS1747W-120+ belongs to the category of non-volatile static RAM (NVSRAM) integrated circuits.

Use

This product is commonly used in applications that require both non-volatile storage and random access memory capabilities.

Characteristics

• Non-volatile: The DS1747W-120+ retains data even when power is removed.
• Static RAM: Provides fast read and write access times.
• Integrated Circuit: Compact and easily integrated into electronic systems.

Package

The DS1747W-120+ is available in a standard 28-pin DIP (Dual Inline Package) format.

Essence

The essence of the DS1747W-120+ lies in its ability to combine the benefits of non-volatile storage with the speed and versatility of static RAM.

Packaging/Quantity

The DS1747W-120+ is typically packaged in reels, with each reel containing a quantity of 250 units.

Specifications

• Operating Voltage: 4.5V to 5.5V
• Memory Size: 128 kilobits (16 kilobytes)
• Access Time: 120 nanoseconds
• Data Retention: Over 10 years
• Write Endurance: 1 million cycles

Detailed Pin Configuration

The DS1747W-120+ features a total of 28 pins, each serving a specific purpose. The pin configuration is as follows:

1. VCC - Power supply voltage
2. GND - Ground reference
3. CE - Chip enable
4. OE - Output enable
5. WE - Write enable
6. A0-A13 - Address inputs
7. DQ0-DQ7 - Data inputs/outputs
8. SQW/INT - Square wave output/interrupt output
9. RST - Reset input
10. NC - No connection

Functional Features

• Non-volatile storage: The DS1747W-120+ retains data even during power loss or system shutdown.
• Fast access times: Static RAM technology allows for quick read and write operations.
• Low power consumption: The device operates at low power levels, conserving energy.
• Automatic write protection: Built-in circuitry protects against accidental data corruption.

Advantages and Disadvantages

Advantages

• Combines non-volatile storage with fast random access memory capabilities.
• Suitable for applications requiring data retention during power interruptions.
• Compact package size enables easy integration into electronic systems.
• High write endurance ensures long-term reliability.

Disadvantages

• Relatively limited memory size compared to other storage technologies.
• Higher cost per kilobit compared to traditional RAM modules.
• Limited availability of alternative models from different manufacturers.

Working Principles

The DS1747W-120+ utilizes a combination of non-volatile EEPROM (Electrically Erasable Programmable Read-Only Memory) and static RAM technologies. When power is applied, the device operates as a standard static RAM, allowing for fast read and write operations. However, when power is removed, the non-volatile EEPROM portion of the device takes over, ensuring that data is retained.

Detailed Application Field Plans

The DS1747W-120+ finds application in various fields, including: 1. Industrial automation systems 2. Automotive electronics 3. Medical equipment 4. Communication devices 5. Power management systems

In industrial automation systems, the DS1747W-120+ can be used to store critical configuration data, ensuring that settings are retained even during power outages. In automotive electronics, it can be utilized for storing vehicle-specific information, such as mileage or diagnostic codes. Medical equipment can benefit from the DS1747W-120+ by storing patient data securely. Communication devices can use this product to store network settings or user preferences. Power management systems can employ the DS1747W-120+ for storing energy usage data.

Detailed and Complete Alternative Models

While the DS1747W-120+ is a popular choice in the NVSRAM category, there are alternative models available from different manufacturers. Some notable alternatives include: 1. STMicroelectronics M48Z128Y 2. Cypress Semiconductor CY14B101L 3. Renesas Electronics R1LV0416DSB-5SI

These alternative models offer similar functionality and characteristics, providing users with options based on their specific requirements.

In conclusion, the DS1747W-120+ is a non-volatile static RAM integrated circuit that combines the benefits of non-volatile storage with the speed and versatility of static RAM. With its compact package size and various functional features, it finds application in diverse fields such as industrial automation, automotive electronics, medical equipment, communication devices, and power management systems. While alternative models exist, the DS1747W-120+ remains a reliable