HD66520 Datasheet, PDF (4/45 Pages) Hitachi Semiconductor – 160-Channel 4-Level Grayscale Display Column Driver with Internal Bit-Map RAM

HD66520T
Pin Description
Classi-
fication
Power
supply
Control
Symbol Pin No.
V_CC1
V_CC2
GND1
GND2
V_EE1
V_EE2
V1L,
V1R
V2L,
V2R
V3L,
V3R
V4L,
V4R
LS0,
LS1
SHL
FLM
CL1
M
',632)
)
Pin Name I/O
V_CC
—
V_CC
—
GND
—
GND
—
LCD drive —
circuit power —
supply
LCD select
high-level
voltage
Input
LCD select
low-level
voltage
Input
LCD deselect Input
high-level
voltage
LCD deselect Input
low- level
voltage
LSI ID select Input
switch pin0
and 1
Shift direction Input
control signal
First line
marker
Input
Data transfer Input
clock
AC switching Input
signal
Display off
signal
Input
Number
of Pins Function
V_CC–GND: logic power supply
V_CC–V_EE: LCD drive circuit power supply
2
LCD drive level power supplies See
Figure 1.
The user should apply the same
2
potential to the L and R side.
2
2
2
Pins for setting LSI ID no (refer to
signals Pin Functions for details).
1
Reverses the relationship between LCD
drive output pins Y and addresses.
1
First line select signal.
1
Clock signal to transfer the line data to
an LCD display driver block.
1
Switching signal to convert LCD drive
output to AC.
1
Control signal to fix LCD driver outputs
to LCD select high level. When low,
LCD drive outputs Y1 to Y160 are set to
V1, or LCD select high level. Display
can be turned off by setting a common
driver to V1.
1017