¡ Semiconductor
ML9052
Number
Function Pin name
I/O
Description
of pins
Display
Timing
CL
1
I/O This is the display clock input/output pin.
The function of this pin will be as follows depending on the states of M/S
Generator
Circuit
and CLS signals.
M/S CLS
CL
"H" "H" Output
"L" Input
"L" "H" Input
"L" Input
When the ML9052 is used in the master/slave mode, the corresponding
CL pin has to be connected.
FR
1
1
I/O This is the input/output pin for LCD display frame reversal signal.
M/S = "H": Output
M/S = "L": Input
When the ML9052 is used in the master/slave mode, the corresponding
FR pin has to be connected.
DOF
I/O This is the blanking control pin for the LCD display.
M/S = "H": Output
M/S = "L": Input
When the ML9052 is used in the master/slave mode, the corresponding
DOF pin has to be connected.
FRS
IRS
1
1
O
I
This is the output pin for static drive.
This pin is used in combination with the FR pin.
Power
Supply
Circuit
This is the pin for selecting the resistor for adjusting the voltage V1.
IRS = "H": The internal resistor is used.
IRS = "L": The internal resistor is not used. The voltage V1 is adjusted
using the external potential divider resistors connected to the pins VR.
This pin is effective only in the master operation. This pin is tied to the
"H" or the "L" level during slave operation.
HPM
1
I
This is the power control pin for the LCD drive power supply circuit.
HPM = "H": Normal mode
HPM = "L": High power mode
This pin is effective only during master operation mode. This pin is tied to
the "H" or the "L" level during slave operation.
VDD
VSS
VIN
13
9
—
—
—
This pin is tied to the MPU power supply terminal VCC.
This is the 0 V pin connected to the system ground (GND).
This is the reference power supply of the voltage multiplier circuit for
driving the LCD.
4
5/64
OKI [ OKI ELECTRONIC COMPONETS ]
