Bus Directional:	Bi-Directional
Base Part Number:	72V835
Supplier Device Package:	128-TQFP (14x20)
Package / Case:	128-LQFP
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C
FWFT Support:	Yes
Retransmit Capability:	No
Programmable Flags Support:	Yes
Expansion Type:	Depth, Width
Series:	72V
Current - Supply (Max):	60mA
Voltage - Supply:	3V ~ 3.6V
Access Time:	12ns
Data Rate:	50MHz
Function:	Synchronous
Memory Size:	72K (2K x 18 x 2)
Part Status:	Obsolete
Packaging:	Tray

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Introduction

72V835L20PF is a logic FIFOs memory device offering remarkable functionality for customers. It is designed for applications requiring high-speed buffering and short response time. This application note covers the field of application and working principle of 72V835L20PF.

Application Field

72V835L20PF is suitable for various applications, such as embedded systems and other industrial control. It offers low power, high speed operation and low latency, which make it perfect for real-time data communication between microcontrollers and other components.The device offers a range of features including 16k-byte program memory and 1k-byte data memory, as well as 256-byte FIFOs that are used to buffered data transmission. It is also able to increment address counters, detect busy status and address match conditions. Due to its highly integrated design and low power consumption, 72V835L20PF has been widely used in direct control systems and consumer electronic devices, such as TV sets, DVD players, MP3 players, etc.

Working Principle

The working principle of 72V835L20PF is based on a First-In-First-Out (FIFO) memory architecture. It has 16k-byte program memory and 1k-byte data memory, as well as various internal control and efficiency features. The program memory contains a program that can be loaded and executed from external memory. When the external memory is loaded with the program, the 72V835L20PF will start to execute it from its program memory. It can determine the state of the memory and its contents by reading the flag register, which contains flags for address match conditions, busy states and other signals.The data memory contains the data to be stored and used during program operation. The data can be written to and read from the data memory by the program, which is stored in the program memory. The device also contains two FIFOs. The first FIFO is used for data read from the program memory and written to the data memory, while the second FIFO is used to reverse the data flow between data and program memories. The device offers a mechanism to increment address counters, which simplifies the writing of data to the memory by automatically incrementing the address counter after each write or read operation.

Conclusion

Overall, the 72V835L20PF is an ideal choice for applications requiring the high-speed buffering and short response times of a FIFOs memory device. It offers an integrated solution, low power consumption and the possibility to increment address counters. It has been widely used in embedded systems and other industrial control, as well as in direct control systems and consumer electronic devices.

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