HCD66724RA03BP 查看數據表（PDF） - Hitachi -> Renesas Electronics

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HCD66724RA03BP

Graphics LCD Controller/Driver with Key Scan Function

Hitachi -> Renesas Electronics 

HD66724/HD66725

 Vcc = 1.8 to 5.5 V (low voltage)

 VLCD = 3.0 to 6.5 V (liquid crystal drive voltage)

 Single, double or triple booster for liquid crystal drive voltage

 Contrast adjuster and voltage followers to decrease direct current flow in the LCD drive bleeder-

resistors

 Wake-up feature using key scan interrupt

 Programmable drive duty ratios and bias values displayed on LCD

• Clock-synchronized serial interface

• 4-/8-bit bus interface capability (except when key scan circuit is used)

• 80 × 8-bit display data RAM (80 characters max)

• 20,736-bit (6 × 8 dots : 432 characters) character generator ROM

• 384 × 8-bit (64 characters) character generator RAM

• 96 × 2-bit (192 segment-icons and marks max) segment RAM

• 72- (96-) segment × 26-common-signal liquid crystal display driver

• Programmable display sizes and duty ratios

• Vertical and horizontal smooth scrolls

• Vertical double-height display

• Selectable CGROM memory bank (max. 432 fonts)

• Wide range of instruction functions:

 Clear display, display on/off control, icon and mark control, character blink, black-white reversed

blinking cursor, return home, cursor on/off, black-white reversed raster-row

• No wait time for instruction execution and RAM access (zero instruction)

• Internal oscillation (with external or built-in resistor) hardware reset

• Shift change of segment and common driver

• Slim chip with bumps for chip-on-glass (COG) mounting, and tape carrier package (TCP)

Table 1 Progammable Display Sizes and Duty Ratios

Character Display

Duty Optimum

Ratio Drive Bias HD66724

HD66725

1/2 1/2

Unavailable Unavailable

1/10 1/4

1 line x 12 1 line x 16

characters characters

1/18 1/5

2 lines x 12 2 lines x 16

characters characters

1/26 1/6

3 lines x 12 3 lines x 16

characters characters

Graphics Display

HD66724

HD66725

Segment Scanned General

Display Keys Ports

Unavailable Unavailable

32 (4 x 8) 3

72 x 8 dots 96 x 8 dots HD66724:

144

72 x 16 dots 96 x 16 dots HD66725:

192

72 x 24 dots 96 x 24 dots

2

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