R61509V

Target Spec

4.Graphics RAM (GRAM)

GRAM stands for graphics RAM, which can store bit-pattern data of 233,280 (240RGB x 432 (dots) x 18(bits)) bytes at maximum, using 18 bits per pixel.

5.Grayscale Voltage Generating Circuit

The grayscale voltage generating circuit generates liquid crystal drive voltages according to the grayscale data in the γ-correction registers to enable 262k-color display. For details, see the γ-Correction Register section.

6.Liquid Crystal Drive Power Supply Circuit

The liquid crystal drive power supply circuit generates DDVDH, VGH, VGL and VCOM levels to drive liquid crystal.

7.Timing Generator

The timing generator generates a timing signal for the operation of internal circuits such as the internal GRAM. The timing signal for display operations such as RAM read and the timing signal for internal operations such as RAM access from the host processor are generated separately in order to avoid mutual interference.

8.Oscillator (OSC)

The R61509V generates the RC oscillation clock internally. Using an external oscillation resistor is not possible. The oscillation frequency is set to 678 kHz before shipment (for details, see Electrical Characteristics). Use the frame frequency adjustment function to change the number of display lines and the frame frequency. While the R61509V is shut down, RC oscillation halts so that reduce power consumption is reduced.

9.Liquid crystal driver Circuit

The liquid crystal driver circuit of the R61509V consists of a 720-output source driver (S1 ~ S720) and a 432-output gate driver (G1~G432). The display pattern data is latched when all of 240RGB data are inputted. The latched data control the source driver and output drive waveforms. The gate driver for scanning gate lines outputs either VGH or VGL level. The shift direction of 720-bit source output from the source driver can be changed by setting the SS bit and the shift direction of gate output from the gate driver can be changed by setting the GS bit. The scan mode by the gate driver can be changed by setting the SM bit.

10. Internal Logic Power Supply Regulator

The internal logic power supply regulator generates internal logic power supply VDD.

Rev. 0.11 April 25, 2008, page 13 of 181

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Renesas R61509V manual Graphics RAM Gram, Grayscale Voltage Generating Circuit, Liquid Crystal Drive Power Supply Circuit
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R61509V specifications

The Renesas R61509V is a versatile and advanced display controller designed to manage graphical user interfaces in various electronic devices. This controller is particularly popular among manufacturers of consumer electronics due to its rich feature set and efficient performance. The R61509V is known for its compatibility with a range of display technologies including LCD and OLED, making it a go-to choice for diverse applications in automotive, industrial, medical, and consumer sectors.

One of the standout features of the R61509V is its high-resolution support, allowing it to drive displays with resolutions up to 800x480 pixels. This capability ensures that users experience clear, vibrant visuals, enhancing the overall usability of devices. The controller supports 16-bit RGB output, enabling a broad color palette and ensuring that colors are rendered accurately and with richness.

The R61509V also incorporates advanced graphics capabilities, including a built-in graphics engine that supports various graphical elements. This engine allows for the overlay of graphics and images, creating smooth transitions and animations that enhance user interaction. Its ability to handle multiple layers makes it ideal for applications that require a complex user interface.

Additionally, the R61509V utilizes a serial peripheral interface (SPI) for communication, allowing for seamless integration with microcontrollers and processors. This feature simplifies the design process and reduces the overall system cost by minimizing the need for additional components. The controller is designed to operate with low power consumption, making it suitable for battery-powered devices where efficiency is critical.

In terms of software support, the R61509V is accompanied by a wide range of software development tools, including drivers and libraries that facilitate the development of applications. Its flexible programming architecture allows engineers to implement custom functionalities that enhance the user experience.

The R61509V is built on reliable, scalable technology, ensuring that it can adapt to various industry demands. With its combination of high-performance graphics, versatile display support, and low power usage, the Renesas R61509V is a compelling choice for manufacturers looking to create innovative and visually appealing products. Whether in automotive dashboards, medical devices, or user-centric consumer electronics, the R61509V enables captivating display solutions that meet modern technological requirements.
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