HD66523 Datasheet, PDF (6/19 Pages) Hitachi Semiconductor – (240-Channel Common Driver with Internal LCD Timing Circuit)

HD66523
C
R
CR
OPEN OPEN
External clock
C
R
CR
R_f
C_f
Figure 1 Oscillator Connection in Master Mode
C
R
CR
OPEN OPEN V_CC
Figure 2 Oscillator Connection in Slave Mode
3. Scanning Function Generator: During master mode, this circuit generates the scanning function
signals. During slave mode, this circuit stops working and FX1 and FX0 must be supplied from master
HD66523.
4. Selector: The selector generates signals which select two lines of LCD driver.
5. Decoder: Outputs data according to scanning function signals and data.
6. LCD driver: Outputs one of three levels according to outputs from decoder.
1107