The document provides the EVK board schematic for the DD-25664XX-3A/4A OLED display module, detailed pin‑function definitions, and timing characteristics for several interface modes (80‑series MPU parallel, 6800‑series MPU parallel, 4‑wire SPI, 3‑wire SPI). It also describes the connection between the OLED and the EVK board, power‑up/down sequences, and recommended initialization code.
Additional sections explain how to reset the driver, set up the voltage supplies, and program the display using the provided initial code. The information is intended for hardware designers and firmware developers integrating the display into their products.
| Clock Cycle Time (80‑series MPU) | 300 ns |
|---|---|
| Address Setup Time (80‑series MPU) | 10 ns |
| Write Data Setup Time (80‑series MPU) | 40 ns |
| Write Data Hold Time (80‑series MPU) | 7 ns |
| Read Data Hold Time (80‑series MPU) | 20 ns |
| Output Disable Time (80‑series MPU) | 70 ns |
| Access Time (80‑series MPU) | 140 ns |
| Clock Cycle Time (4‑wire SPI) | 100 ns |
| Address Setup Time (4‑wire SPI) | 15 ns |
| Chip Select Setup Time (4‑wire SPI) | 20 ns |
| Write Data Setup Time (4‑wire SPI) | 15 ns |
| Rise Time (4‑wire SPI) | 15 ns |
| Fall Time (4‑wire SPI) | 15 ns |
Pins DO0‑D7 are the bi‑directional data bus connecting to the MCU data bus.
Pull the RES# pin low, wait about 10 ms, then release it high to initialize the chip.