PT6590 Datasheet, PTC

* LCD drive output: Common output: 4, Segment output: 27
* Integrated Display data RAM (DDRAM): RAM: 27x4 =108bit
* 3-wire Serial interface (SD, SCL, CSB)

* Telephone, FAX, Portable equipment (POS, ECR, PDA etc.)
* DSC, DVC, Car audio, Home electrical appliance, Mete.

Pin Name CSB SCL SD VDD I/O Unused case III-- INHb I VDD CLKIN VLCD COM0~COM3 SEG0~SEG22 SEG23~SEG26 LED VSS EXT-PAD I O O O O - VSS OPEN OPEN OPEN OPEN VSS Description Chip select: "L" active Serial data transfer clock Input serial data Power.