SN74ACT7808-25FN

Bus Directional:	Uni-Directional
Base Part Number:	74ACT7808
Supplier Device Package:	44-PLCC (16.58x16.58)
Package / Case:	44-LCC (J-Lead)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C
FWFT Support:	No
Retransmit Capability:	No
Programmable Flags Support:	Yes
Expansion Type:	Depth, Width
Series:	74ACT
Current - Supply (Max):	400µA
Voltage - Supply:	4.5V ~ 5.5V
Access Time:	18ns
Data Rate:	40MHz
Function:	Asynchronous
Memory Size:	18K (2K x 9)
Part Status:	Obsolete
Packaging:	Tube

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Introduction
SN74ACT7808-25FN is a type of device used in FIFOs memory. FIFOs memory is a type of logic where data is stored in a First-In-First-Out order. This device offers a high degree of performance as compared to other devices in this form of memory. It has two data ports, two memory ports and two control ports. This device is used in logic applications and devices where there is a need for greater flexibility and performance.
Application Field
The main application field of the SN74ACT7808-25FN are in industrial and consumer control systems, motor drives, medical equipment and automotive systems. The SN74ACT7808-25FN can be used in applications such as data acquisition, data storage, data transfer and communication systems. It is also used in consumer electronics such as CD/DVD players, cameras and camcorders. It is also used in multi-processor and multi-threading applications. In addition, this device is used in scientific instruments, process control systems, robotics and data acquisition systems.
Working Principle
The SN74ACT7808-25FN operates in a first-in-first-out (FIFO) manner. Data is written into one port and then read from the other port using the write and read control pins. The device contains two ports, each containing 8 bit of data. The device is designed to have the capability of storing 16 bytes of data. The device operates at a maximum clock frequency of 25MHz and is programmable from 0.25mm to 25mm. It requires a minimum supply voltage of 2.5V and a maximum supply voltage of 5V. When either of the input/output pins is used, it must be driven in open collector mode, with a source of 3.3V.
Features
The SN74ACT7808-25FN features include a high throughput rate of up to 25MHz, 5V supply voltage, 8-bit wide data bus, two port interface, low power consumption, programmable data rate, programmable depth and is capable of operating at temperatures ranging from –40˚C to 85˚C. It also features on-chip self-timing circuits and dedicated control pins for each port. In addition, this device includes error detection and correction, address reversal, and error status bits to indicate errors in data.
Conclusion
The SN74ACT7808-25FN is a high performance, low power device used in FIFOs memory applications. This device provides a high throughput rate and low power consumption. Its two port interface and 8-bit data bus make it an ideal choice for industrial, consumer, motor drive, medical and automotive applications. Its built-in self-timing circuits, error detection, address reversal, and error status bits provide reliability in data accuracy and performance.

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