FEATURES
I2C & 3 wires serial interface. Programmable multiplex rates 8, 4, 3, 2 and static. All segments ON by SET bit command All segments OFF by BLANK bit command Cascadable for large LCD applications On chip voltage bias and mux signals generation Internal or external oscillator Internal or external bias resistors Internal LCD bias generation with voltage-followers Internal or external synchronisation Interface with Double RAM function Interface with Shift register function High noise immunity on inputs Low operating current consumption Separate logic and LCD supply voltage pins Wide VDD supply voltage range from 1.8V to 5V Wide VLCD supply voltage range from 3V to 7V Operation temperature range: -40°C to +85°C Packages TQFP64, COG, COB. DESCRIPTION
The display refresh is implemented internally. The display data are entered by a 3-wire or I2C interface. The display data are stored in 2 selectable 8x40 RAM (Double RAM mode). The RAM data correspond directly to the LCD pixels (segments): a set bit in the RAM results in an activated LCD pixel.
EM Microelectronic
