DS1746WP-120

Product Overview

Category: Integrated Circuits (ICs)

Use: The DS1746WP-120 is a non-volatile static RAM (NVSRAM) integrated circuit. It combines the functionality of a traditional SRAM with that of an EEPROM, providing both volatile and non-volatile storage capabilities.

Characteristics: - Non-volatile storage - High-speed access - Low power consumption - Wide operating voltage range - Durable and reliable

Package: The DS1746WP-120 is available in a 28-pin DIP (Dual In-line Package) format, which allows for easy integration into various electronic systems.

Essence: The essence of the DS1746WP-120 lies in its ability to retain data even when power is removed, making it ideal for applications where non-volatile memory is required.

Packaging/Quantity: The DS1746WP-120 is typically packaged in tubes or trays, with quantities varying depending on customer requirements.

Specifications

• Operating Voltage: 2.7V to 3.6V
• Access Time: 120ns
• Memory Size: 32K x 8 bits
• Data Retention: Up to 10 years
• Write Endurance: 1 million cycles
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The DS1746WP-120 features a 28-pin DIP package with the following pin configuration:

```

Pin Name Description

1 VCC Power Supply 2 GND Ground 3 CE Chip Enable 4 OE Output Enable 5 WE Write Enable 6-13 A0-A7 Address Inputs 14-21 DQ0-DQ7 Data Inputs/Outputs 22 RST Reset 23 VBAT Battery Input 24-27 NC No Connection 28 WP Write Protect ```

Functional Features

• Non-volatile storage: The DS1746WP-120 retains data even when power is removed, ensuring data integrity and reliability.
• High-speed access: With a fast access time of 120ns, the DS1746WP-120 allows for quick read and write operations.
• Low power consumption: The integrated circuit is designed to minimize power consumption, making it suitable for battery-powered devices.
• Wide operating voltage range: The DS1746WP-120 can operate within a voltage range of 2.7V to 3.6V, providing flexibility in various applications.

Advantages and Disadvantages

Advantages: - Combines volatile and non-volatile memory capabilities - Fast access time - Low power consumption - Durable and reliable

Disadvantages: - Limited memory size (32K x 8 bits) - Relatively higher cost compared to traditional SRAMs

Working Principles

The DS1746WP-120 utilizes a combination of SRAM and EEPROM technologies. When power is applied, the device operates as a standard SRAM, allowing for high-speed read and write operations. However, when power is removed, an internal lithium energy source takes over, providing power to retain the stored data in non-volatile memory cells.

Detailed Application Field Plans

The DS1746WP-120 finds applications in various fields, including but not limited to: 1. Industrial automation systems 2. Automotive electronics 3. Medical equipment 4. Communication devices 5. Consumer electronics

In industrial automation systems, the DS1746WP-120 can be used to store critical data such as configuration settings, calibration values, and event logs. In automotive electronics, it can be utilized for storing vehicle parameters, fault codes, and other essential information. Medical equipment can benefit from the DS1746WP-120 by using it to store patient data, device settings, and event logs.

Detailed and Complete Alternative Models

1. DS1746W-120: Similar to the DS1746WP-120 but without the write protect feature.
2. DS1746P-120: A lower power version of the DS1746WP-120, designed for applications with strict power consumption requirements.
3. DS1746B-120: Offers a larger memory size (64K x 8 bits) compared to the DS1746WP-120.

These alternative models provide options based on specific application requirements, allowing users to choose the most suitable option for their needs.

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