GENERAL DESCRIPTION

The PCF2105 integrated circuit is similar to the PCF2114x (described in the “PCF2116 family” data sheet) but does not contain the high voltage generator of that device.

Furthermore, a fast I2C-bus interface (400 kHz) is provided.

The PCF2105 is optimized for chip-on-glass applications.

FEATURES

• Single chip Liquid Crystal Display (LCD) controller/driver

• 1 or 2-line display of up to 24 characters per line, or 2 or 4-line display of up to 12 characters per line

• 5 × 7 character format plus cursor; 5 × 8 for kana (Japanese syllabary) and user-defined symbols

• On-chip generation of intermediate LCD bias voltages

• On-chip oscillator requires no external components (external clock also possible)

• Display data RAM: 80 characters

• Character generator ROM: 240 characters

• Character generator RAM: 16 characters

• 4 or 8-bit parallel bus or 2-wire I2C-bus interface (400 kHz)

• CMOS and TTL compatible

• 32 row, 60 column outputs

• Multiplex (MUX) rates 1 : 32 and 1 : 16

• Uses common 11-code instruction set

• Logic supply voltage range: VDD − VSS = 2.5 to 6 V

• Display supply voltage range: VDD − VLCD = 3.5 to 9 V

• Low power consumption

• I2C-bus address selection (SA0): 011101.

APPLICATIONS

• Telecom equipment

• Portable instruments

• Point-of-sale terminals.