LC75890W Datasheet, PDF (1/32 Pages) Sanyo Semicon Device – 1/4duty and Static Drive General-Purpose LCD Display Drivers

Ordering number : ENA1971A
LC75890W
LC75890E
CMOS IC
1/4duty and Static Drive
General-Purpose
LCD Display Drivers
Overview
The LC75890W and LC75890E are 1/4 duty and static drive general-purpose LCD display drivers that can be used
for displaying segments for household appliances, home audio visual products, portable devices and other such
products under the control of a microcontroller.The LC75890W can drive up to 148 segments directly, and the
LC75890E can drive up to 132 segments directly. In addition the LC75890W can control up to 12 general-purpose
output ports, and the LC75890E can control up to 11 general-purpose output ports. They can control the brightness of
the LED backlight of RGB, because they have the PWM output of greatest 3CH built-in. Incorporation of the
oscillation circuit helps to reduce the number of external resistors and capacitors required. Incorporation of the LCD
drive bias voltage stabilization circuit helps to reduce the capacitors for the LCD drive bias voltage stabilization.
Features
• Support for 1/4-duty 1/3-bias or static drive techniques under serial data control.
<LC75890W(SQFP48)>
When 1/4-duty drive : Capable of driving up to 148 segments
When Static drive : Capable of driving up to 37 segments
<LC75890E(QIP44M)>
When 1/4-duty drive : Capable of driving up to 132 segments
When Static drive : Capable of driving up to 33 segments
• Support for display segment on, off, or blinking for each segment output pin under serial data control.
Continued on next page.
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30712HKPC /O2611HKPC 20110711-S00002, 20110712-S00002, S00003 No.A1971-1/32