UPD6461中文资料瑞萨数据手册PDF规格书

FEATURES

• Maximum number of characters: 12 rows × 24 columns (288 characters)

• Number of character patterns : 256 (μPD6461)/128 (μPD6462) (stored in ROM). Each pattern can be changed by

specifying a mask code option.

• Character size : One dot per line or one dot per two lines (field)

• Number of character colors : 8

• Background : No background, minimum background, or overall background can be selected for the

entire screen, together with rimming ON/OFF function. Any one of 8 different colors

is selectable as the background color and together with the rim color (black or white)

selectable per screen.

• Dot matrix : Each character consists of 12 (width) × 18 (height) dots. There is no gap between

adjacent characters.

• Blinking : Blinking can be turned on/off for each character. The blinking ratio is 1:1. The blinking

frequency can be selected from approx. 1 Hz, 2 Hz, and 0.5 Hz for the entire screen.

• Reversed characters : Specified characters can be displayed in reverse video.

• Character signal output : Character signals can be output to three channels. Output mode (1) (RGB + BLK, VC1

+ VBLK1, and VC2 + VBLK2) or output mode (2) (R + RBLK, B + BBLK, and G + GBLK) can

be selected by specifying a mask option. For output mode 1, three output formats are

available for the VC1 and VC2 channels (options A, B, and C).

• Clearing of video RAM : Video RAM batch clear command and power-on clear function

• Interface with a microcontroller : 8-bit serial input supporting variable word length (LSB first or MSB first can be selected

by specifying a mask option.)

• Supply voltage : Low-voltage operation possible (supply voltage range: 2.7 to 5.5 V)