HD61202U Datasheet, PDF (28/33 Pages) Hitachi Semiconductor – Dot Matrix Liquid Crystal GraphicDisplay Column Driver

HD61202U
8. Resistance between terminal Y and terminal V (one of V1L, V1R, V2L, V2R, V3L, V3R, V4L,
and V4R) when load current flows through one of the terminals Y1 to Y64. This value is
specified under the following condition:
V_CC–V_EE = 15.0V
V1L = V1R, V3L = V3R = V_CC–2/7 (V_CC–V_EE)
V2L = V2R, V4L = V4R = V_CC+2/7 (V_CC–V_EE)
V1L, V1R
RON
V3L, V3R
V4L, V4R
Terminal Y
(Y1–Y64)
V2L, V2R
The following is a description of the range of power supply voltage for liquid crystal display
drive. Apply positive voltage to V1L = V1R and V3L = V3R and negative voltage to V2L = V2R
and V4L = V4R within the ÆV range. This range allows stable impedance on driver output
(RON). Notice that ÆV depends on power supply voltage V_CC–V_EE.
V_CC
V1 (V1L = V1R)
Range of power supply
∆V
V3 (V3L = V3R)
voltage for liquid crystal
display drive
5.0
∆V
V4 (V4L = V4R)
V2 (V2L = V2R)
V_EE
Correlation between driver output
waveform and power supply voltages
for liquid crystal display drive
3
8
16
V_CC–V_EE (V)
Correlation between power supply
voltage V_CC–V_EE and ∆V
843