ST7920控制器液晶，SPI串口液晶HG160322

PIN CONNECTIONS Pin Symbol Level Function 1 VSS 0V GND 2 VDD +5V Power supply for logic 3 VO - No connection 4 RS H/L "H" Data, "L" Instruction code 5 R/W H/L "H" Read, "L" Write 6 E H/L Enable signal 7 | 14 DB0 | DB7 H/L Data bus line 15 PSB H/L "H" Parallel mode "L" Serial mode 16 /REST L Reset signal ,active "L" 17 VOUT - Positive voltage output 18 LEDA +5V Power supply for LED backlight 19 LEDK 0V 20 NC - No connection

MECHANICAL DATA Item Nominal Dimensions Unit Module Size(W x H x T) 122.0X44.0X14.0 mm Viewing Area (W x H) 99.0X24.0 mm Dot Pitch (W x H) 0.59X0.60 mm Dot Size (W x H) 0.55X0.56 mm ABSOLUTE MAXIMUM RATINGS Item Symbol Min. Max. Unit Supply Voltage (Logic) VDD-VSS -0.3 5.5 V Supply Voltage (LCD) VO-VSS -0.3 7 V Input Voltage VI -0.3 VDD+0.3 V Operating Temp. TOPR -20 70 ℃ Storage Temp. TSTG -30 80 ℃ ELECTRICAL CHARACTERISTICS (VDD=5.0V, Ta=25℃ ) Item Symbol Min. Typ. Max. Unit Input High Voltage VIH 0.7VDD - VDD V Input Low Voltage VIL -0.3 - 0.6 V Output High Voltage VOH 0.8VDD - VDD V Output Low Voltage VOL 0 - 0.4 V Supply Current IDD - 3 5 mA LCD Driving Voltage VO-VSS - 6.5 - V LED BACKLIGHT SPECIFICATIONS (Ta=25℃) Item Forward Voltage Forward Current YELLOW-GREEN 4.1V 200mA WHITE 3.1V 45mA

NOTES:
1. Built-in ST7920 (With Chinese Char ROM) controller
2. Yellow green/blue mode optional
3. 5V/3.3V power supply optional
4. Parallel mode/serial mode optional