
Allicdata Part #: | DS1249Y-70-ND |
Manufacturer Part#: |
DS1249Y-70 |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Maxim Integrated |
Short Description: | IC NVSRAM 2M PARALLEL 32EDIP |
More Detail: | NVSRAM (Non-Volatile SRAM) Memory IC 2Mb (256K x 8... |
DataSheet: | ![]() |
Quantity: | 1000 |
1 +: | 0.00000 |
Series: | -- |
Packaging: | Tube |
Part Status: | Obsolete |
Memory Type: | Non-Volatile |
Memory Format: | NVSRAM |
Technology: | NVSRAM (Non-Volatile SRAM) |
Memory Size: | 2Mb (256K x 8) |
Write Cycle Time - Word, Page: | 70ns |
Access Time: | 70ns |
Memory Interface: | Parallel |
Voltage - Supply: | 4.5 V ~ 5.5 V |
Operating Temperature: | 0°C ~ 70°C (TA) |
Mounting Type: | Through Hole |
Package / Case: | 32-DIP Module (0.600", 15.24mm) |
Supplier Device Package: | 32-EDIP |
Base Part Number: | DS1249Y |
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The DS1249Y-70 is a Non-Volatile SRAM memory chip, which has been designed and developed by Dallas Semiconductor and Maxim Integrated. It is commonly used for high performance memory applications. The primary purpose of the DS1249Y-70 is to provide reliable, long-term storage of data in a non-volatile state. This type of memory is often used in applications like automotive, medical, surveillance and security systems.
The DS1249Y-70 is a 32K bit non-volatile SRAM, which offers data storage capability in a wide range of temperatures (-40°C to +125°C). The chip includes a unique Dual-Port DataBuffer Technology, which provides two additional ports to the existing standard SRAM port. This technology also allows for simultaneous access to the SRAM memory and the 64 bits of internal non-volatile memory. This allows for faster data access and higher throughput, dependent upon the host system requirements. The 64 bits of internal non-volatile memory can store any type of data and the power consumption is very low, with low-power modes to further reduce power consumption when the memory is inactive.
The DS1249Y-70 also includes on-chip ECC (error-correcting code) detection and correction circuitry and data protection circuitry, which prevents data corruption during power cycles and brown out conditions. The ECC can detect and correct single and double bit errors, ensuring data integrity and reliability. The memory is also protected from static discharges, making it suitable for mobile applications where static discharge may occur.
In terms of applications, the DS1249Y-70 is used in systems that require reliable, long-term data storage, such as industrial systems, automotive systems, medical systems, and security systems. This type of memory is especially useful for systems that require uninterrupted operation, such as automotive and medical systems. The Dual-Port DataBuffer Technology also makes this chip suitable for use in high speed applications such as those used for memory caching.
The working principle of the DS1249Y-70 is fairly simple. The chip provides two ports to the existing SRAM port – the primary port, which is used to access the SRAM memory, and the secondary port, which is used to access the 64 bits of internal non-volatile memory. Data is sent to and from the primary port through the system bus, while data is sent to and from the secondary port through a dedicated DataBuffer port. Data transferred to the internal non-volatile memory is held there even when power is removed, and is retrieved when power is restored.
In conclusion, the DS1249Y-70 is a Non-Volatile SRAM memory chip designed to provide reliable, long-term data storage in a wide variety of systems. It offers data protection through on-chip ECC detection and correction circuitry, static discharge protection, and low power modes for reduced power consumption. It is suitable for use in systems requiring long-term data storage and cache memory applications, where speed and reliability are of utmost importance.
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