| Allicdata Part #: | DS1245AB-100-ND |
| Manufacturer Part#: |
DS1245AB-100 |
| Price: | $ 0.00 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | Maxim Integrated |
| Short Description: | IC NVSRAM 1M PARALLEL 32EDIP |
| More Detail: | NVSRAM (Non-Volatile SRAM) Memory IC 1Mb (128K x 8... |
| DataSheet: |  DS1245AB-100 Datasheet/PDF |
| Quantity: | 1000 |
Specifications
| Series: | -- |
| Packaging: | Tube |
| Part Status: | Obsolete |
| Memory Type: | Non-Volatile |
| Memory Format: | NVSRAM |
| Technology: | NVSRAM (Non-Volatile SRAM) |
| Memory Size: | 1Mb (128K x 8) |
| Write Cycle Time - Word, Page: | 100ns |
| Access Time: | 100ns |
| Memory Interface: | Parallel |
| Voltage - Supply: | 4.75 V ~ 5.25 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: | DS1245AB |
Description
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Memory
The DS1245AB-100 is a non-volatile 128-kilobyte static RAM (DS1245AB) that also provides a Bus Controller function. Typically it is used as a shadow RAM in computing systems. It is also found in industrial applications where code execution needs to be persistent across power cycles. This non-volatile memory chip provides a Bus Controller for handling transceivers, DMA controllers, I/O ports and interrupts in addition to the 128KB static RAM.The Bus Controller portion of the DS1245AB-100 includes two registers, SRAM control register and SRAM timing register. The SRAM control register determines how the RAM will be used, whether it is as a write-only or a read/write device. The SRAM timing register controls the delay timings when accessing the RAM.In computing systems, the use of the DS1245AB-100 as a shadow RAM is important in applications where power cycles must be transparent so that code execution can be preserved. This function is provided by the Bus Controller portion of the chip which maintains the memory addresses in control registers and allows the processor to keep executing instructions even across power cycles. The SRAM registers are also used in computing systems to provide the interface between the processor and main memory.In industrial applications, the DS1245AB-100 is used to store data that needs to be available and accessible for extended periods of time. The non-volatility and low cost of the DS1245AB-100 make it an ideal choice for such industrial applications. Examples of this include PLCs, motion controller systems, and data logging applications.In summary, the DS1245AB-100 provides an efficient and reliable means of storing data in applications where power cycles must be transparent and where data needs to be stored for extended periods of time. The Bus Controller portion ensures that the processor can keep executing instructions transparently and allows for easy interfacing between the processor and main memory. The non-volatility and low cost of this chip make it an ideal choice for many different applications.
The specific data is subject to PDF, and the above content is for reference
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