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