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DS1643-85+ - English Editing Encyclopedia Entry
Product Overview
Category: Integrated Circuits (ICs)
Use: The DS1643-85+ is a non-volatile static RAM (NVSRAM) integrated circuit. It combines the functions of both RAM and non-volatile memory, providing data storage even when power is lost.
Characteristics: - Non-volatile memory - Static RAM functionality - Low power consumption - High reliability - Wide operating temperature range
Package: The DS1643-85+ is available in a 28-pin DIP (Dual Inline Package) format.
Essence: The essence of the DS1643-85+ lies in its ability to retain data even in the absence of power, making it suitable for applications where data integrity is crucial.
Packaging/Quantity: The DS1643-85+ is typically packaged in tubes or reels, with quantities varying based on customer requirements.
Specifications
- Memory Size: 64 kilobits (8 kilobytes)
- Supply Voltage: 4.5V to 5.5V
- Access Time: 85ns
- Operating Temperature Range: -40°C to +85°C
- Data Retention: Over 10 years
- Write Endurance: 1 million cycles
Detailed Pin Configuration
The DS1643-85+ features a 28-pin DIP package with the following pin configuration:
- VCC - Power supply voltage
- GND - Ground
- CE - Chip Enable
- OE - Output Enable
- WE - Write Enable
- A0-A14 - Address inputs
- DQ0-DQ7 - Data inputs/outputs
- SQW - Square Wave Output
- RST - Reset
- NC - No Connection
Functional Features
- Non-volatile storage: The DS1643-85+ retains data even when power is lost, ensuring data integrity and reliability.
- Static RAM functionality: It operates as a standard RAM, allowing fast read and write access to stored data.
- Low power consumption: The integrated circuit consumes minimal power during operation, making it suitable for battery-powered devices.
- High reliability: With a long data retention period and high write endurance, the DS1643-85+ offers reliable data storage.
- Wide operating temperature range: It can operate in extreme temperature conditions, ranging from -40°C to +85°C.
Advantages and Disadvantages
Advantages: - Data integrity: Retains data during power loss - Fast access time: 85ns access time allows quick retrieval of stored information - Low power consumption: Ideal for energy-efficient applications - High reliability: Long data retention and write endurance ensure data integrity
Disadvantages: - Limited storage capacity: 64 kilobits may not be sufficient for certain applications requiring larger memory sizes - Higher cost compared to traditional RAM: The inclusion of non-volatile memory functionality increases the overall cost of the IC
Working Principles
The DS1643-85+ combines the principles of static RAM and non-volatile memory. It utilizes a small onboard battery to provide power during periods of power loss, allowing the non-volatile memory to retain data. When power is restored, the device operates as a standard static RAM, enabling fast read and write access to the stored data.
Detailed Application Field Plans
The DS1643-85+ finds applications in various fields, including: 1. Industrial control systems 2. Automotive electronics 3. Medical equipment 4. Aerospace and defense systems 5. Communication devices
In industrial control systems, the DS1643-85+ ensures that critical data is preserved during power outages, preventing loss of important information. In automotive electronics, it can be used for storing vehicle parameters and diagnostic data. Medical equipment benefits from its ability to retain patient data in case of power failure. Aerospace and defense systems rely on the DS1643-85+ to store mission-critical information. Communication devices utilize it for data buffering and storage.
Detailed and Complete Alternative Models
- DS1230AB-120+: 12 kilobit non-volatile SRAM with a 120ns access time.
- FM1608-120-PG: 64 kilobit non-volatile FRAM with a 120ns access time.
- M48Z08-100PC1: 8 kilobyte non-volatile static RAM with a 100ns access time.
These alternative models offer similar functionality to the DS1643-85+, providing non-volatile memory combined with RAM capabilities. However, they may differ in terms of storage capacity, access time, and package type.
In conclusion, the DS1643-85+ is a versatile integrated circuit that combines the advantages of non-volatile memory and static
Maglista ng 10 karaniwang tanong at sagot na nauugnay sa aplikasyon ng DS1643-85+ sa mga teknikal na solusyon
Sure! Here are 10 common questions and answers related to the application of DS1643-85+ in technical solutions:
Q: What is DS1643-85+? A: DS1643-85+ is a specific model of non-volatile static RAM (NVSRAM) manufactured by Maxim Integrated. It combines the features of both RAM and non-volatile memory, making it suitable for applications that require data retention even when power is lost.
Q: What are the key features of DS1643-85+? A: The key features of DS1643-85+ include a 4KB non-volatile SRAM, battery backup support, automatic store on power loss, and an industry-standard 28-pin DIP package.
Q: In which technical solutions can DS1643-85+ be used? A: DS1643-85+ can be used in various technical solutions such as embedded systems, industrial automation, data loggers, smart meters, medical devices, and other applications where non-volatile memory with battery backup is required.
Q: How does DS1643-85+ ensure data retention during power loss? A: DS1643-85+ uses an integrated lithium energy source to provide battery backup support. This ensures that the data stored in the NVSRAM remains intact even when the main power supply is disconnected.
Q: Can DS1643-85+ be used as a drop-in replacement for standard SRAM modules? A: Yes, DS1643-85+ is designed to be pin-compatible with industry-standard 28-pin DIP packages, making it easy to replace standard SRAM modules in existing designs.
Q: What is the maximum operating frequency of DS1643-85+? A: The maximum operating frequency of DS1643-85+ is typically 20 MHz, making it suitable for a wide range of applications.
Q: Can DS1643-85+ be used in both 5V and 3.3V systems? A: Yes, DS1643-85+ supports both 5V and 3.3V power supply voltages, allowing it to be used in systems with different voltage requirements.
Q: Does DS1643-85+ support hardware write protection? A: Yes, DS1643-85+ provides hardware write protection through the use of a write-protect pin. This allows you to prevent accidental writes to the NVSRAM.
Q: What is the typical data retention period of DS1643-85+? A: The typical data retention period of DS1643-85+ is 10 years, ensuring long-term storage of critical data even without power.
Q: Are there any specific precautions to consider when using DS1643-85+? A: It is important to follow the manufacturer's guidelines for proper handling, storage, and operation of DS1643-85+. Additionally, attention should be given to the battery replacement schedule to ensure continuous data retention.
Please note that these answers are general and may vary depending on the specific application and requirements. Always refer to the datasheet and technical documentation provided by the manufacturer for accurate information.