HD66206 Datasheet, PDF (6/21 Pages) Hitachi Semiconductor – 80-Channel Column/Common Driver for Middle- or Large-sized Liquid Crystal Panel

HD66206
Pin Function
Table 1 Pin Functions
Classification
Power supply
Control signal
Symbol
V_CC
GND
V_EE
V1
V2
V3
V4
CL1
CL2
M
SHL
(
Input/
Pin No. Pin Name Output Function
39
V_CC
—
V_CC–GND: Logic power supply
37
GND
34
V_EE
V_CC–V_EE: Power supply for driving the liquid
crystal display.
30
V1
31
V2
32
V3
33
V4
Input
Power supply voltage for liquid crystal display
drive level.
See Figure 3.
36
Clock 1 Input Column driver data latch signal. Data is
latched at the falling edge of this signal. Set
this signal low in common driver operation.
47
Clock 2 Input In column driver operation, used as a display
data latch signal.
In common driver operation, used as a line
selection data shift signal.
In both operations, this signal is valid at its
falling edge.
35
M
Input
AC conversion signal for liquid crystal display
drive output.
38
Shift left Input Control signal for inverting data output
destination.
1. In column driver operation
See Figure 4.
2. In common driver operation
SR1, SR2, SR3, ...., SR80 correspond to Y1,
Y2, Y3, ...., Y80 outputs.
When SHL is low, data is input to D0L pin and
output from D1R pin. D2 and D3 are set low.
When SHL is high, the relationships between
D0L and D1R are reverse.
See Table 2.
29
Enable Input When FCS is high, data latch starts by setting
the ( signal low.
When FCS is low, set the ( signal high.
The relationships between the ( signal, the
FCS signal, data latch operation, and driver
function are as show in Table 3
151