[Solomon Systech]

1. General Description

SSD1702 is a 240-outputs LCD driver capable of both COMMON or SEGMENT driving, selected by hardware pin setting. It is designed for high resolution dot matrix type LCD panel for the use on PDA or terminal.

SSD1702 can be used in cascade mode to support display system with more than 240 rows or columns.

In segment mode, 4-bit or 8-bit parallel input modes are available through pin selection.

2. FEATURES

BOTH SEGMENT AND COMMON MODE

Supply voltage for LC driver: +15.0 to +30.0 V

Supply voltage for logic system: +2.4 to +3.6 V

240 outputs for either common or segment driving

Pin selectable between common and segment mode

Low output impedance

Low power consumption

SEGMENT MODE

Maximum XCK clock frequency: 20 MHz (VDD = +3.0 to +3.6V)

15 MHz (VDD = +2.4 to +3.0V)

Pin selectable 4-bit or 8-bit input modes

Automatic transfer function of enable signal

Automatically stop the internal clock after counting 240 bits of input data in chip select mode

Line latch circuit reset function when DISPOFF# active

COMMON MODE

Maximum LP clock frequency: 1 MHz (VDD = +2.4 to 3.6V)

Built-in 240 bits bi-directional shift register

Single (240 bits shift register) or Dual mode (two 120 bits shift register) operations

Shift register circuit reset function when DISPOFF# active