SN74ACT7881-15PN

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The SN74ACT7881-15PN is a First-In First-Out (FIFO) memory circuit designed to store and retrieve a wide range of data, such as digital audio, video, and other serial data streams. It functions as an interface between devices operating at different data rates, providing buffering and clock synchronization. FIFO memories are often used in communications systems requiring data buffering, such as those using Universal Serial Bus (USB) or Peripheral Component Interconnect (PCI) architectures. The SN74ACT7881-15PN FIFO is a synchronous device with a dual-port random access memory (RAM) core, providing an ideal solution for buffering data in applications with multiple data sources or destinations.

The SN74ACT7881-15PN is a dual-port FIFO memory with an asynchronous, two-wire interface. This interface allows easy integration into systems by providing control, address and data bits over the same signal pins, reducing the number of pins needed for connection. The dual-port design allows data to be read from one port while at the same time allowing data to be written to the other port. This allows for incoming data to be processed while outgoing data is being buffered, thus allowing data to be streamed in real-time. The dual-port also allows for flexibility in data buffering, as it can be used to both buffer incoming data and store outgoing data simultaneously.

The SN74ACT7881-15PN FIFO memory is organized internally into 16,384 single-byte (8-bit) words, with each word being two 8-bit bytes. This allows data to be stored in the FIFO in multiple formats, including 8-bit bytes, 16-bit words, and 32-bit double words. The FIFO also includes a built-in parity generator to provide parity checking on the data. The parity generator can be programmed to generate 8-bit or 9-bit parity for all data written to the FIFO.

The SN74ACT7881-15PN FIFO is designed to operate in a wide range of temperature ranges, from -40°C to +85°C. It is also rated for operation at a voltage range between 3.0V and 3.6V. The FIFO comes with an asynchronous-to-synchronous signal synchronization circuit, allowing it to convert asynchronous HSDA signals to synchronous signals. This allows it to be used in devices that require synchronized data streams.

The SN74ACT7881-15PN FIFO supports multiple types of timing and control operations. It has a programmable write pointer and read pointer, providing flexibility in how data is written and read out of the FIFO. The FIFO also supports programmable status registers to allow for detection of abnormalities, such as full and empty conditions. The FIFO also includes four write control flags, which allow for data blocking and overflow detection.

In addition to its standard capabilities, the SN74ACT7881-15PN FIFO also supports a variety of optional features. It has a built-in clock multiplier that supports up to four clock speeds, allowing for faster data transfer. It also includes a built-in memory core, allowing for the storage of data independent of the system clock and data size. A programmable address counter is also included, allowing the FIFO to automatically increment write and read addresses when data is written to or read from the FIFO.

The SN74ACT7881-15PN FIFO offers an ideal solution for applications requiring data buffering and synchronization. Its wide temperature range and low power consumption make it a great choice for data buffering in applications in which long periods of high-speed, low-power operation are required. Its built-in features, such as parity checking and programmable read and write pointers, make it a flexible solution for applications needing data buffering and synchronization. The FIFO’s built-in memory core and programmable address counter can also provide an added level of data security, making it an ideal solution for applications requiring secure data storage.

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