Logic - FIFOs Memory : 72281L15PF Application Field and Working Principle

72281L15PF is a family of FIFO (First-In-First-Out) synchronous static RAMs developed by Motorola. It is used in a variety of applications including data buffering, packet buffering, and serial communications. The device is a dual port RAM with two completely separate ports. This enables data to be moved into and out of the FIFO at the same time.

Features of 72281L15PF

• Two independent bidirectional ports
• High speed access times of <15ns
• RAM architecture with two write and two read ports
• Pin compatible with other FIFO products
• Available in 5V operating voltage
• Supports byte and word lengths
• Wrong clock disable feature
• Industry standard FIFO protocol

Applications of 72281L15PF

72281L15PF is a very useful device in a wide range of applications. It can be used in data storage and buffering applications wherein the data needs to be stored and retrieved efficiently. It is also used in packet buffering and serial communications for efficient data transmission. The device can also be used for high-speed logic interfacing with microcontrollers and DSPs.

72281L15PF Working Principle

The device operates based on the FIFO (First-In-First-Out) logic, which implies that the data entering the FIFO will be the first one to be retrieved. The device has two independent bidirectional ports, each port consisting of two read and two write pins to enable independent accessing of the FIFO. The device can store up to 15-bits word length or two bytes of data. The two separate ports serve two distinct functions. The first port is used to write data into the FIFO while the second port is used to read data from the FIFO.

The device contains a RAM architecture with two independent write and two independent read ports. The device also has a wrong-clock-disable feature which is used to prevent the data from being written in an inappropriate sequence. The device can be accessed in byte or word lengths dependent on the data type being stored. The access time of the device is relatively low with access time of less than 15ns. The device also supports industry standard FIFO protocols.

Conclusion

72281L15PF is a very useful device for implementing data buffering, packet buffering, and serial communication applications. This device is based on a FIFO logic and has two separate ports to enable independent write and read access. The device also features an industry standard FIFO protocol and supports byte and word length operations. The device is also pin-compatible with other FIFO products.