72235LB25PFI

Bus Directional:	Uni-Directional
Base Part Number:	72235
Supplier Device Package:	64-TQFP (14x14)
Package / Case:	64-LQFP
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
FWFT Support:	No
Retransmit Capability:	No
Programmable Flags Support:	Yes
Expansion Type:	Depth, Width
Series:	7200
Current - Supply (Max):	60mA
Voltage - Supply:	4.5V ~ 5.5V
Access Time:	15ns
Data Rate:	40MHz
Function:	Synchronous
Memory Size:	36K (2K x 18)
Part Status:	Obsolete
Packaging:	Tray

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Logic - FIFOs Memory: 72235LB25PFI Application Field and Working Principle

The 72235LB25PFI is an integrated circuit memory device that is specifically designed for applications requiring complex logic functions with fast and reliable logic control. It is a FIFO (First-In-First-Out) memory, also known as a "pipe" memory, which stores and retrieves data in an ordered, predictable fashion. As such, it finds application in systems that need to rapidly process multiple inputs and outputs such as industrial robots, automated materials handlers, automation controllers, and embedded code for digital signal processing (DSP) systems. Although FIFOs can be implemented with a variety of memory types, the 72235LB25PFI is based on single-port SRAM (Static Random Access Memory) technology. This type of RAM does not require a steady electricity supply for maintenance and is often preferred for these types of applications due to its high speed and low power consumption. The device is also distributed with Error Correction Code (ECC) capability to help detect and correct data errors caused by external or internal noise.The 72235LB25PFI consists of two banks of SRAM organized into two separate FIFO structures. Each bank has two independent FIFO structures—one "input" FIFO, and one "output" FIFO. The input FIFO is used to store incoming data, while the output FIFO stores data for retrieval. Each of the banks also has two associated control registers. These registers contain configuration and control settings such as buffer size, FIFO read pointer and write pointer, and ECC settings. The 72235LB25PFI has several additional control functions. These include a read enable line, write enable line, clock enable line, and an ECC enable line. The read enable line is activated when data from the output FIFO needs to be read. The write enable line is activated when new data needs to be written to the input FIFO. The clock enable line is activated when the device needs to check for errors, and the ECC enable line is activated when errors need to be checked with ECC. The 72235LB25PFI also provides several status signal lines that provide status information on each FIFO. These include the buffer full signal line, buffer empty signal line, and count line. The buffer full signal line triggers when the output FIFO is full, or when the input FIFO is empty. The buffer empty signal line triggers when the output FIFO is empty, or when the input FIFO is full. The count line provides a signal that is proportional to the current level of FIFO occupancy. In summary, the 72235LB25PFI is an integrated circuit memory device that is specifically designed for applications requiring complex logic functions with fast and reliable logic control. The device is based on single-port SRAM technology and includes error correction capabilities, FIFO control register settings, and several status signal lines to provide status information on both FIFOs. The 72235LB25PFI is ideal for applications with high speed and data throughput requirements, such as robotic applications, automated materials handlers, industrial automation systems, and embedded code for digital signal processing applications.

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