Standard Character HD44780 LCD (16x4)

The HD44780 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 displayunder 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.

Specifications:
1) Low power operation support: 2.7 to 5.5V.
2) Wide range of liquid crystal display driver power: 3.0 to 11V
3) Liquid crystal drive waveform: A (One line frequency AC waveform)
4) Correspond to high speed MPU bus interface: 2 MHz (when VCC = 5V)
5) 4-bit or 8-bit MPU interface enabled.
6) 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.
7) Wide range of instruction functions: Display clear, cursor home, display on/off, cursor on/off, display character blink, cursor shift,display shift.
8) Automatic reset circuit that initializes the controller/driver after power on.
9) Internal oscillator with external resistors.
10) Low power consumption.

Pin Configurations:
1) GND............Ground
2) VCC.............LCD Controller Power (+3 to +5V)
3) VLCD...........LCD Display Bias (+5 to -5V)
4) RS...............Register Select: H: Data L: Command
5) R/W..............H: Read L: Write
6) E...................Enable (Data strobe, active high)
7) DB0..............Data LSB
8) DB1..............Data
9) DB2..............Data
10) DB3..............Data
11) DB4..............Data
12) DB5..............Data
13) DB6..............Data
14) DB7..............Data MSB
15) A...................LED Backlight Anode (optional)
16) K...................LED Backlight Cathode (optional)