Without the specific datasheet, identifying the pinout requires caution. However, most Phiaco/Phico modules follow a standard layout:
Warning: Always verify voltage levels with a multimeter if possible before connecting to a microcontroller, as reverse polarity can damage the panel.
If you do find the PDF, these are the critical values you MUST check. They differ slightly between manufacturers.
While specific voltage variations exist, the Phico D0 series generally follows the industry-standard HD44780 LCD controller architecture. Below are the typical specifications for the standard module found with this marking.
| Parameter | Symbol | Min | Max | Unit | | :--- | :--- | :--- | :--- | :--- | | Enable Cycle Time | tCYC | 1000 | - | ns | | Enable Pulse Width (High) | tASW | 450 | - | ns | | RS, R/W Setup Time | tAS | 140 | - | ns | | Data Setup Time | tDSW | 195 | - | ns | | Data Hold Time | tH | 10 | - | ns |
These timings are easily met by any microcontroller, including Arduino at 16MHz.
Flip your LCD over. Look for a white silkscreen text that says something like:
Search for that full part number. The "162" likely refers to "16x2".
Likely Full Part Number Structure: If this is a Phiaco module, the full model number is likely longer, such as "PHIACO D0-xxxxxx" or similar. To find the exact PDF, check the FPC (Flexible Printed Circuit) cable or the back of the PCB for a longer alphanumeric string.