The PCF8576T/1,118 is an universal LCD Driver for low multiplex rates. The peripheral device which interfaces to almost any liquid crystal display (LCD) with low multiplex rates. It generates the drive signals for any static or multiplexed LCD containing up to four backplanes and up to 40 segments and can easily be cascaded for larger LCD applications. It is compatible with most microprocessors/microcontrollers and communicates via a two-line bidirectional I²C-bus. Communication overheads are minimized by a display RAM with auto-incremented addressing, by hardware sub addressing and by display memory switching (static and duplex drive modes).
Single-chip LCD controller/driver
Internal LCD bias generation with voltage-follower buffers
40 x 4-bit RAM for display data storage
Auto-incremented display data loading across device sub address boundaries
Display memory bank switching in static and duplex drive modes
Versatile blinking modes
LCD and logic supplies may be separated
Low power consumption
Power-saving mode for extremely low power consumption in battery-operated and telephone applications
I²C-bus interface
TTL/CMOS compatible
Compatible with any 4, 8 or 16-bit microprocessor or microcontroller
May be cascaded for large LCD applications (up to 2560 segments possible)
Cascadable with 24-segment LCD driver PCF8566
Optimized pinning for plane wiring in both single and multiple PCF8576 applications
Very low external component count (at most one resistor, even in multiple device applications)
