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lamaPLC: st756x display drivers
The ST7567 and ST7565 are the two most common “COV” (Chip-on-Glass) controllers for monochrome graphic LCDs. While they share the same basic command set, they represent different generations of hardware integration.
| Feature | ST7565 | ST7567 |
|---|---|---|
| Release Era | Older (Legacy) | Newer (Current Standard) |
| External Caps | 5–9 capacitors needed | 0–2 capacitors needed |
| Default Bias | Usually 1/9 or 1/7 | Usually 1/9 |
| Interface | Parallel / SPI | Parallel / SPI / I²C |
| Power Consumption | Low | Ultra-Low |
| Best For | Heavy-duty industrial gear | Tiny DIY modules, I2C displays |
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