Most alphanumeric Phico D-0 character displays rely on the industry-standard . This makes it remarkably simple to interface with modern microcontrollers like Arduino, ESP32, and Raspberry Pi Pico. Pin Number Signal Name Description 1 VSScap V sub cap S cap S end-sub Ground (0V) connection 2 VDDcap V sub cap D cap D end-sub Logic supply voltage (+5V nominal) 3 VOcap V sub cap O Contrast adjustment (connected to a variable potentiometer) 4 Register Select (0 = Command Register; 1 = Data Register) 5 Read / Write Select (0 = Write; 1 = Read) 6 Enable Signal (Latch data on the falling edge) 7 Data Bus Line 0 (Not used in 4-bit mode) 8 Data Bus Line 1 (Not used in 4-bit mode) 9 Data Bus Line 2 (Not used in 4-bit mode) 10 Data Bus Line 3 (Not used in 4-bit mode) 11 Data Bus Line 4 12 Data Bus Line 5 13 Data Bus Line 6 14 Data Bus Line 7 15 Backlight Anode power source (+5V with limiting resistor) 16 Backlight Cathode (Ground)
The is a generic marking for a family of LCD modules produced by Data Vision . Because "94V-0" refers to a UL flammability rating for the PCB material rather than a specific model number, multiple distinct LCDs share this marking. Standard 16-Pin LCD Pinout
Because exact part numbers for LCDs can be complex (often consisting of a manufacturer code, a screen size, and a revision code), it is likely that "D0 94V0" is a specific revision or part of a larger model number (e.g., from a manufacturer like or a similar brand).
PHICO D0 94V0 LCD Display: Datasheet and Specifications Guide phico d0 94v0 lcd display datasheet pdf
: Some variants may have 20-pin connectors or different physical dimensions (e.g.,
Many Phico D-0 displays are standard HD44780-compatible character LCDs. If you suspect your display is a 16x2 or 20x4 character module, you can try the classic 16-pin or 14-pin interface, which is very well documented. Pin 1 is almost always GND, Pin 2 is Vcc (+5V), and Pin 3 is for contrast adjustment (V0). It is often safe to test this standard configuration with a microcontroller like an Arduino, as the risk of damage is low if you keep the voltage at 5V.
Note: Certain specialty graphical variants tracking with the Phico D-0 designation feature expanded 20-pin footprints to accommodate auxiliary pixel columns, external negative bias supplies ( VEEcap V sub cap E cap E end-sub ), or supplemental control signals. Electrical Characteristics and Ratings Most alphanumeric Phico D-0 character displays rely on
General specifications for common modules in this series (like the DV-16100) include: Operating Voltage ( cap V sub d d end-sub Operating Current: Operating Temperature: (Standard) or up to (Extended). Built-in Controller:
If the screen appears completely blank or completely dark, turn the 10k Ωcap omega potentiometer connected to Pin 3 ( V0cap V sub 0
Phico D-0 94V-0 (often branded under Data Vision) is a series of LCD modules commonly used in industrial and automotive applications. Because "94V-0" refers to a standard UL flammability rating for the PCB material rather than a specific screen model, the exact specifications depend on whether you have a character-based (e.g., 16x1) or graphical version. Core Technical Specifications Because "94V-0" refers to a UL flammability rating
Most PHICO character modules use the industry-standard Hitachi HD44780-compatible 16-pin interface: Pin VSS Ground (0V) 2 VDD Power Supply (+5V) 3 VO Contrast Adjustment (via potentiometer) 4 RS Register Select (H: Data / L: Instruction) 5 R/W Read/Write (H: Read / L: Write) 6 E Enable Signal 7-14 DB0-DB7 Data Bus Lines (DB7 used for Busy Flag) 15 A (LED+) Backlight Anode (+5V) 16 K (LED-) Backlight Cathode (0V)
If you need a to test the display
To save microcontroller pins, it is highly recommended to wire the module using . This mode ignores data lines DB0 through DB3, requiring only 4 data lines instead of 8. Hardware Wiring Diagram PHICO Pin 1 ( VSScap V sub cap S cap S end-sub →right arrow Arduino GND PHICO Pin 2 ( VDDcap V sub cap D cap D end-sub →right arrow Arduino 5V PHICO Pin 3 ( VOcap V sub cap O →right arrow Center pin of 10k Potentiometer PHICO Pin 4 (RS) →right arrow Arduino Digital Pin 12 PHICO Pin 5 (R/W) →right arrow Arduino GND (Forces the screen into constant "Write" mode) PHICO Pin 6 (E) →right arrow Arduino Digital Pin 11 PHICO Pin 11 (DB4) →right arrow Arduino Digital Pin 5 PHICO Pin 12 (DB5) →right arrow Arduino Digital Pin 4 PHICO Pin 13 (DB6) →right arrow Arduino Digital Pin 3 PHICO Pin 14 (DB7) →right arrow Arduino Digital Pin 2 PHICO Pin 15 (LED+) →right arrow Connect through a 220 Ωcap omega resistor to Arduino 5V PHICO Pin 16 (LED-) →right arrow Arduino GND Sample Initialization Code