GENERAL DESCRIPTION
The PCF8812 is a low power CMOS LCD controller driver, designed to drive a graphic display of 65 rows and 102 columns. All necessary functions for the display are provided in a single chip, including on-chip generation of LCD supply and bias voltages, resulting in a minimum of external components and low power consumption. The PCF8812 interfaces to microcontrollers via a serial bus interface.

FEATURES
• 65 row and 102 column outputs
• Display data RAM 65 × 102 bits
• On-chip:
– Configurable 5 (4, 3 and 2) voltage multiplier generating VLCD (external VLCD also possible)
– Generation of intermediate LCD bias voltages
– Oscillator requires no external components (external clock also possible).
• External reset input pin
• Serial interface maximum 4.0 Mbit/s
• CMOS compatible inputs
• Mux rate: 1 : 65
• Logic supply voltage range VDD1 to VSS:
– 2.5 to 5.5 V.
• High voltage generator supply voltage range VDD2 to VSS and VDD3 to VSS
– 2.5 to 4.5 V.
• Display supply voltage range VLCD to VSS: – 4.5 to 9.0 V.
• Low power consumption, suitable for battery operated systems
• Temperature compensation of VLCD
• Temperature range: Tamb = −40 to +85 °C
• Slim chip layout, suited for Chip-On-Glass (COG) applications.

2 APPLICATIONS
• Telecom equipment.