
Allicdata Part #: | DS1220AD-150+-ND |
Manufacturer Part#: |
DS1220AD-150+ |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Maxim Integrated |
Short Description: | IC NVSRAM 16K PARALLEL 24EDIP |
More Detail: | NVSRAM (Non-Volatile SRAM) Memory IC 16Kb (2K x 8)... |
DataSheet: | ![]() |
Quantity: | 24 |
Series: | -- |
Packaging: | Tube |
Part Status: | Active |
Memory Type: | Non-Volatile |
Memory Format: | NVSRAM |
Technology: | NVSRAM (Non-Volatile SRAM) |
Memory Size: | 16Kb (2K x 8) |
Write Cycle Time - Word, Page: | 150ns |
Access Time: | 150ns |
Memory Interface: | Parallel |
Voltage - Supply: | 4.5 V ~ 5.5 V |
Operating Temperature: | 0°C ~ 70°C (TA) |
Mounting Type: | Through Hole |
Package / Case: | 24-DIP Module (0.600", 15.24mm) |
Supplier Device Package: | 24-EDIP |
Base Part Number: | DS1220A |
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The DS1220AD-150+ is a memory chip used in many electronic devices. It is a cost-effective 16K-by-8 static RAM, with the ability to store 16 kilobytes of data. This chip is commonly used in embedded control applications, such as microcontroller boards, for storing important data which must remain even after the power is turned off. It also finds uses in instrumentation, Bluetooth connections, and radio modules.
The chip is designed as a static RAM, which means that it does not need to be continually refreshed to maintain data integrity. This means that it will remember its data without any DC power being applied to it. This chip also has a write-protect feature, which prevents accidental erasure of the stored data.
The DS1220AD-150+ is a drop-in module, which means that the manufacturer has already programmed it with the required instructions before it is shipped to the customers. This helps to reduce development time and effort, as the user doesn’t need to program anything by themselves.
The chip is connected to the memory bus of the microcontroller board via its address lines and data bus. Its address lines specifies the address of the memory location where the data is to be written or read. Its data bus contains the data to be written or read from the memory location.
When the chip is addressing, it divides the bus into four equal segments, each of which can be independently addressed using its respective row and column address pins. This allows the chip to address a total of 2048 independent memory locations.
The chip operates using an asynchronous self-timed protocol, which means that the timing of the communication between the chip and the microcontroller board is performed by the chip itself. This means that the chip does not require any external clock for communication purposes.
The chip also features data latches which can be used to temporarily store data that needs to be written to or read from the memory. The latches allow the data to be buffered, which helps to reduce the amount of time required to write or read data from memory.
The chip also features a write-protect pin which can be used to prevent accidental erasures of stored data. This pin is connected to the ground and, when it is activated, the chip will not allow any data to be written or read. This feature helps toprotect stored data in case of power failure or similar issues.
In conclusion, the DS1220AD-150+ chip is a popular and cost-effective 16K-by-8 static RAM. It is used in embedded control applications and other applications which require reliable storage of data. It has a write-protect feature which prevents accidental erasing of stored data. The chip is connected to the memory bus of the microcontroller board via its address and data bus and operates using an asynchronous self-timed protocol, which means that no external clock is required. It also features data latches which can be used to temporarily store data, thus reducing the time required to write or read data from memory.
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