OM4085 Overview
plastic very small outline package; 40 leads GENERAL DESCRIPTION OM4085 The OM4085 is a peripheral device which interfaces to almost any Liquid Crystal Display (LCD) having low multiplex rates. It generates the drive signals for any static or multiplexed LCD containing up to four backplanes and up to 24 segments and can easily be cascaded for larger LCD applications.
OM4085 Key Features
- Single-chip LCD controller/driver
- Selectable backplane drive configuration: static or 2, 3 or 4 backplane multiplexing
- Selectable display bias configuration: static, 1⁄2 or 1⁄3
- Internal LCD bias generation with voltage-follower buffers
- 24 segment drives: up to twelve 8-segment numeric characters; up to six 15-segment alphanumeric characters; or any graph
- 24 × 4-bit RAM for display data storage
- Auto-incremented display data loading across device subaddress boundaries
- Display memory bank switching in static and duplex drive modes
- Versatile blinking modes
- LCD and logic supplies may be separated