
Allicdata Part #: | 70261S55PFG-ND |
Manufacturer Part#: |
70261S55PFG |
Price: | $ 21.29 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | IDT, Integrated Device Technology Inc |
Short Description: | IC SRAM 256K PARALLEL 100TQFP |
More Detail: | SRAM - Dual Port, Asynchronous Memory IC 256Kb (16... |
DataSheet: | ![]() |
Quantity: | 1000 |
45 +: | $ 19.35600 |
Series: | -- |
Packaging: | Tube |
Part Status: | Active |
Memory Type: | Volatile |
Memory Format: | SRAM |
Technology: | SRAM - Dual Port, Asynchronous |
Memory Size: | 256Kb (16K x 16) |
Write Cycle Time - Word, Page: | 55ns |
Access Time: | 55ns |
Memory Interface: | Parallel |
Voltage - Supply: | 4.5 V ~ 5.5 V |
Operating Temperature: | 0°C ~ 70°C (TA) |
Mounting Type: | Surface Mount |
Package / Case: | 100-LQFP |
Supplier Device Package: | 100-TQFP (14x20) |
Base Part Number: | IDT70261 |
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The 70261S55PFG is a device belonging to the memory component family. It is classified as a static random access memory (SRAM) chip, which is used in computers, phones, tablets, and many other types of digital systems. SRAMs are most commonly used in the main memory and cache memory areas of these systems, where they store data in the form of individual bits (1s and 0s).
A 70261S55PFG is typically packaged in an 8-pin DIP (dual in-line package), although other package types are available. It has an 8-bit wide data bus and is designed for a single 5 volt power supply. It also has an on-chip Data Retention circuitry that allows the data content to be maintained even in the absence of a valid power supply. The device is tolerant of power supply noise, making it an ideal choice for embedded applications.
The 70261S55PFG supports two operating modes, the Asynchronous Access Mode (AAM) and the Synchronous Access Mode (SAM). The AAM mode provides a 100 nanoseconds access time at a maximum clock frequency of 12 MHz, while the SAM mode provides an increased operating speed of up to 20 MHz with a maximum access time of 70 nanoseconds.
The working principle of the 70261S55PFG is relatively simple. Data is loaded into memory cells in the chip, which are connected to the data bus. The memory cells are arranged in a grid, with each cell containing eight bits (1s and 0s). Each row of eight bits is referred to as a byte, and each row of the grid is referred to as a word. The chip can then be accessed using either the AAM or the SAM mode, depending on the application and the desired speed, to read or write the data from the cells.
The 70261S55PFG is a popular memory component for many applications, including: embedded systems, medical devices, industrial controllers, and communications equipment. It is able to maintain data retention even when unpowered, making it a good choice for applications that require low power consumption. Additionally, its fast speed makes it a great choice for any system that needs to rapidly access data.
In summary, the 70261S55PFG is a static random access memory (SRAM) device that is packaged in an 8-pin DIP and is designed for a single 5 volt power supply. It is usually used in embedded systems, medical devices, industrial controllers, and communications equipment, as it is able to maintain data retention even when unpowered, and is fast enough for most applications. The chip supports two operating modes, the Asynchronous Access Mode (AAM) and the Synchronous Access Mode (SAM), with the AAM mode achieving an access time of 100 nanoseconds and the SAM mode achieving an access time of 70 nanoseconds.
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