GENERAL DESCRIPTION

The MSM 9004-01/02 is an LCD driver for dynamic display with a 1/3 or 1/4 duty select function. When the 1/3 duty is selected, it can display up to 147 segments, and when the 1/4 duty is selected, up to 196 segments.

FEATURES

• Logic power supply voltage (VDD)      : 5.0 V ± 10%

• LCD drive power supply voltage (VLCD) : 3.7 V to 5.5 V

• Serial transfer clock frequency       : 2 MHz max.

• LCD output resistance

   Common driver  : 20 kW

   Segment driver : 60 kW

• Display duty : 1/3, 1/4 selectable

• LCD segment output : 49

• Maximum number of display segments

   For 1/3 duty : 147 segments max.

   For 1/4 duty : 196 segments max.

• Display blanking terminal attached

• Operating temperature range : –40 to +85˚C

• Interface with microcontroller

   MSM9004-01 : LOAD, DATA, CLOCK1, CLOCK2

   MSM9004-02 : LOAD, DATA, CLOCK2

• System clock

   MSM9004-01 : external input

   MSM9004-02 : internal oscillation circuit (external resistor and capacitor required)

• Package:

   64-pin plastic QFP (QFP64-P-1414-0.80-BK) (Product name : MSM9004-01GS-BK)

                                                            (Product name : MSM9004-02GS-BK)

• Comparison of device codes and functions