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Details, datasheet, quote on part number:HD44780UA00FS
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Datasheet text preview:
HD44780U (LCD-II)
(Dot Matrix Liquid Crystal Display Controller/Driver)
Description
The HD44780U dot-matrix liquid crystal display controller and driver LSI displays alphanumerics, Japanese kana characters, and symbols. It can be configured to drive a dot-matrix liquid crystal display under the control of a 4- or 8-bit microprocessor. Since all the functions such as display RAM, character generator, and liquid crystal driver, required for driving a dot-matrix liquid crystal display are internally provided on one chip, a minimal system can be interfaced with this controller/driver. A single HD44780U can display up to one 8-character line or two 8-character lines. The HD44780U has pin function compatibility with the HD44780S which allows the user to easily replace an LCD-II with an HD44780U. The HD44780U character generator ROM is extended to generate 208 5 × 8 dot character fonts and 32 5 × 10 dot character fonts for a total of 240 different character fonts. The low power supply (2.7V to 5.5V) of the HD44780U is suitable for any portable battery-driven product requiring low power dissipation.
Features
· 5 × 8 and 5 × 10 dot matrix possible · Low power operation support: 2.7 to 5.5V · Wide range of liquid crystal display driver power 3.0 to 11V · Liquid crystal drive waveform A (One line frequency AC waveform) · Correspond to high speed MPU bus interface 2 MHz (when VCC = 5V) · 4-bit or 8-bit MPU interface enabled · 80 × 8-bit display RAM (80 characters max.) · 9,920-bit character generator ROM for a total of 240 character fonts 208 character fonts (5 × 8 dot) 32 character fonts (5 × 10 dot)
167
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. HD44780UA00FS HCD44780UA00 HD44780UA00TF HD44780UA02FS HCD44780UA02 HD44780UA02TF HD44780UBxxFS HCD44780UBxx HD44780UBxxTF Note: xx: ROM code No. Package FP-80B Chip TFP-80F FP-80B Chip TFP-80F FP-80B Chip TFP-80F CGROM Japanese standard font
European standard font
Custom font
168
HD44780U
HD44780U Block Diagram
OSC1 OSC2 CL1 CL2 M CPG Instruction register (IR)
7
Reset circuit ACL
Timing generator
D
8
RS R/W E
MPU interface
Instruction decoder
Display data RAM (DDRAM) 80 × 8 bits
16-bit shift register
Common signal driver
COM1 to COM16
Address counter DB4 to DB7 DB0 to DB3 Input/ output buffer
8 7 7 8
7 8
40-bit shift register
40-bit latch circuit
Segment signal driver
SEG1 to SEG40
Data register (DR)
40 8 8
Busy flag Character generator RAM (CGRAM) 64 bytes
5
LCD drive voltage selector
GND
Character generator ROM (CGROM) 9,920 bits
5
Cursor and blink controller
Parallel/serial converter and attribute circuit VCC V1 V2 V3 V4 V5
169
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