DS1245XP-70IND+ Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: The DS1245XP-70IND+ is a non-volatile static RAM (NVSRAM) integrated circuit. It combines the benefits of both RAM and non-volatile memory, making it suitable for applications that require fast read/write access along with data retention even in the absence of power.

Characteristics: - High-speed access: The DS1245XP-70IND+ offers fast access times, allowing for efficient data retrieval and storage. - Non-volatile memory: Unlike traditional RAM, this IC retains data even when power is removed, ensuring data integrity and reliability. - Low power consumption: The DS1245XP-70IND+ operates at low power levels, making it suitable for battery-powered devices. - Extended temperature range: This IC can operate reliably in a wide temperature range, making it suitable for industrial applications. - Durable packaging: The DS1245XP-70IND+ is available in a sturdy package that protects the integrated circuit from physical damage and environmental factors.

Package and Quantity: The DS1245XP-70IND+ is typically packaged in a 32-pin DIP (Dual Inline Package). Each package contains one IC.

Specifications

• Memory Size: 1 Megabit (128K x 8)
• Access Time: 70 ns
• Supply Voltage: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: More than 10 years
• Package Type: 32-pin DIP

Pin Configuration

The DS1245XP-70IND+ has a total of 32 pins. Here is the detailed pin configuration:

```

Pin Name Description

1 CE Chip Enable 2 OE Output Enable 3-10 A0-A7 Address Inputs 11 WE Write Enable 12-19 DQ0-DQ7 Data Input/Output 20 VCC Power Supply 21 GND Ground 22 NC No Connection 23 NC No Connection 24 NC No Connection 25 NC No Connection 26 NC No Connection 27 NC No Connection 28 NC No Connection 29 NC No Connection 30 NC No Connection 31 NC No Connection 32 NC No Connection ```

Functional Features

The DS1245XP-70IND+ offers the following functional features:

1. Non-volatile storage: The IC combines a static RAM array with a non-volatile memory element, allowing for data retention even when power is lost.
2. Fast access times: With an access time of 70 ns, the DS1245XP-70IND+ provides quick read and write operations.
3. Easy integration: The IC can be easily integrated into existing systems due to its standard pin configuration and compatibility with common interface protocols.
4. Low power consumption: The DS1245XP-70IND+ operates at low power levels, making it suitable for battery-powered devices.
5. High endurance: The non-volatile memory element has a high endurance, allowing for frequent read and write cycles without degradation.

Advantages and Disadvantages

Advantages: - Combines fast access times with non-volatile memory capabilities. - Suitable for applications requiring data retention in the absence of power. - Low power consumption. - Wide operating temperature range. - Durable packaging protects the IC from physical damage.

Disadvantages: - Relatively small memory size compared to other storage options. - Higher cost compared to traditional RAM.

Working Principles

The DS1245XP-70IND+ utilizes a combination of static RAM and non-volatile memory technologies. The static RAM array provides fast read/write access, while the non-volatile memory element ensures data retention even when power is removed. This is achieved by storing the data in a separate non-volatile memory cell that can retain charge for an extended period.

During normal operation, the chip enable (CE), output enable (OE), and write enable (WE) pins control the access to the memory array. The address inputs (A0-A7) specify the location in the memory array to read from or write to. The data input/output pins (DQ0-DQ7) transfer data between the IC and the external system.

Application Field Plans

The DS1245XP-70IND+ finds applications in various fields, including:

1. Industrial automation: The IC can be used in programmable logic controllers (PLCs) and other industrial control systems that require fast and reliable data storage.
2. Automotive electronics: It can be utilized in automotive systems such as engine control units (ECUs) and infotainment