Datasheet HD44780U (LCD-II) (Hitachi) - 2

HD44780U
• 64 × 8-bit character generator RAM  8 character fonts (5 × 8 dot)  4 character fonts (5 × 10 dot) • 16-common × 40-segment liquid crystal display driver • Programmable duty cycles  1/8 for one line of 5 × 8 dots with cursor  1/11 for one line of 5 × 10 dots with cursor  1/16 for two lines of 5 × 8 dots with cursor • Wide range of instruction functions:  Display clear, cursor home, display on/off, cursor on/off, display character blink, cursor shift, display shift • Pin function compatibility with HD44780S • Automatic reset circuit that initializes the controller/driver after power on • Internal oscillator with external resistors • Low power consumption
Ordering Information Type No. Package CGROM
HD44780UA00FS FP-80B Japanese standard font HCD44780UA00 Chip HD44780UA00TF TFP-80F HD44780UA02FS FP-80B European standard font HCD44780UA02 Chip HD44780UA02TF TFP-80F HD44780UBxxFS FP-80B Custom font HCD44780UBxx Chip HD44780UBxxTF TFP-80F Note: xx: ROM code No. 2 Document Outline Description Features Ordering Information HD44780U Block Diagram HD44780U Pin Arrangement (FP-80B) HD44780U Pin Arrangement (TFP-80F) HD44780U Pad Arrangement HD44780U Pad Location Coordinates Pin Functions Function Description Interfacing to the MPU Reset Function Instructions Instruction Description Interfacing the HD44780U Power Supply for Liquid Crystal Display Drive Relationship between Oscillation Frequency and Liquid Crystal Display Frame Frequency Instruction and Display Correspondence Initializing by Instruction Absolute Maximum Ratings DC Characteristics AC Characteristics Bus Timing Characteristics Interface Timing Characteristics with External Driver Power Supply Conditions Using Internal Reset Circuit DC Characteristics AC Characteristics Bus Timing Characteristics Interface Timing Characteristics with External Driver Power Supply Conditions Using Internal Reset Circuit Electrical Characteristics Notes Load Circuits Timing Characteristics