MAX208CDBR

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MAX208CDBR is an interface driver, receiver, transceiver from Maxim Integrated. This product is designed to provide a complete system solution for LCD modules, CRT monitors, dummy address and data rate conversion, as well as for controlling mixed asynchronous communications environments.

The MAX208CDBR features several integrated signal conditioning, signal translation, and buffering capabilities to ease system integration. This combined with its ultra-low voltage operation makes it well suited for a variety of applications including automotive, industrial, medical and consumer.

Application fields

The MAX208CDBR was designed to be used in a variety of different applications, including:

• LCD Panels – The MAX208CDBR is used to drive LCD Panels with low power consumption, low electromagnetic dissipation, and low emissions.
• CRT Monitors – The MAX208CDBR enables interfacing CRT monitors to microcontrollers, memory segmentations, and CPU chipsets.
• Dummy address and data rate conversion – The MAX208CDBR is used to convert between the relevant types of signals.
• Asynchronous communications – The MAX208CDBR can be used to interface to multiple synchronous or asynchronous channels.
• Other applications – The MAX208CDBR is also used in other applications including automotive, industrial, medical, and consumer.

Working Principle

The MAX208CDBR features an integrated 7-bit addresser/stringer and an embedded microprocesssor that implements the I/O functions. This integrated technology allows the device to support a full range of LCD panel operations such as display read/write, frame address reset, cursor control, bitmap clipboard, display start, and vertical and horizontal scan patterns. It also provides an adjustable data rate for optimal use of the display interface.

The MAX208CDBR features an address bus, a data bus, and a strobe bus. Each bus is used to control the data flow within the MAX208CDBR device. The address bus is used to address and decode register contents, while the data bus is used to transfer data between the device and the microcontroller or memory segmentation device. Lastly, the strobe bus is used to control the processes of input, output and the LCD write/read cycles.

The MAX208CDBR also includes a burst mode interface which enables it to transfer data at high speeds while minimizing power consumption. This is accomplished by using a two-word memory buffer and a burst read/write handshake mechanism. The handshake mechanism ensures that both directions of the data stream are driven independently in order to prevent data transfer stalls.

The MAX208CDBR uses an internal voltage reference to provide a reference voltage for the data line, thereby improving the accuracy of the waveform and avoiding unnecessary delay in the data transfer process. Additionally, the device features internal slew rate control and ON/OFF direction control which further improves the performance of the interface circuit.

Conclusion

The MAX208CDBR is an integrated, high-performance interface driver, receiver, and transceiver ideal for a variety of applications including LCD Panels, CRT monitors, and asynchronous communications. Using an integrated 7-bit addresser/stringer, embedded microprocesssor, and a burst mode interface, the MAX208CDBR is able to provide a complete system solution for LCD panels, CRT monitors, and complex communications applications.

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