Sunplus Controller Discontinued
The Sunplus SPLC780D controller was
discontinued by the manufacturer and replaced
by the Sitronix ST7066U. Modules with the discontinued
controller have part numbers ending in "JP" while modules with the new controller end in "JT."
New part numbers ending in "JT" are mechanically and optically compatible with the old "JP." In order to assure electrical compatibility of the "JT" in your application, you should be aware of the following differences:
New part numbers ending in "JT" are mechanically and optically compatible with the old "JP." In order to assure electrical compatibility of the "JT" in your application, you should be aware of the following differences:
| Sitronix ST7066U (parts ending in JT) | Sunplus SPLC780D (parts ending in JP) | Hitachi HD44780 (for comparison) | |
| Vlcd | VCC-10.0 to VCC+0.3 | VDD - 12V to VDD + 0.3V | 3V ~ 11V |
| Operating Temperature | -40 to +90 | -30 to +80 | -30 to +75 |
| Description Time: Entry Mode Set, Display on/off, Cursor or Display Shift, Function Set, Set CGRAM address, Set DDRAM address, Write data to RAM, Read data from RAM, |
37uS | 38 uS | 37uS |
| Initializing by Instruction - Wait time after power on | Wait time > 40mS | Wait time > 15mS | Wait time > 15mS |
| Initializing by Instruction - Wait time after first function set | Wait time > 37uS | Wait time > 4.1mS | Wait time > 4.1mS |
| Initializing by Instruction - Wait time after second function set | Wait time > 37uS | Wait time > 100uS | Wait time > 100uS |
| Initializing by Instruction - Wait time after Display clear | Wait time > 1.52mS | none | none |
| Oscillation Frequency | 270~410khz | 250~350khz | 190~350khz |
| Enable cycle time | min 1000 ns | 1200 ns | min 1000 ns |
| Enable Pulse Width | min 460 ns | 450 ns | 450 ns |
| Address Hold Time | min 10ns | 20 ns | 20 ns |
| Address Setup Time | min 0 ns | 60 ns | 60 ns |
| Data Setup Time | min 80ns | 195 ns | 195 ns |
